10P/Tempel 2
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
01.09,
19.7,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.85,
5.2,
--
(M. Collins,
Everton,
0.05-m
"small telescopes and finders" with aperture not exceeding 4 inches);
   
18.78,
6.6,
8'
(T. Csorgei,
Bratislava, SK,
0.12-m
Refractor;
20'
tail in p.a. 30 deg);
   
18.76,
5.3,
4'
(G. Pappa,
Pedara,Sicily,
0.3-m
Camera lens + CCD;
15'
tail);
   
18.76,
5.2,
7'
(V. Gonano,
Udine, Italy,
10x50
Binoculars);
   
18.76,
5.1,
7'
(J. Powichrowski,
Knyszyn,
7x50
Binoculars);
   
18.46,
5.3,
10'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
18.13,
5.3,
7'
(C. Hergenrother,
10x50
Binoculars);
   
17.87,
5.3,
--
(M. Collins,
Everton,
0.05-m
"small telescopes and finders" with aperture not exceeding 4 inches);
   
17.79,
5.7,
6'
(T. Csorgei,
Bratislava, SK,
0.12-m
Refractor);
   
17.77,
5.2,
5'
(G. Pappa,
Pedara,Sicily,Italy,
12x50
Binoculars);
   
17.77,
5.5,
4'
(G. Pappa,
Pedara,Sicily,
0.3-m
Camera lens + CCD;
7'
tail);
   
16.87,
5.1,
5'
(B. Granslo,
Horten, Norway,
10x42.0
Binoculars);
   
16.83,
5.5,
3.8'
(V. Kasten,
15x50
Binoculars);
   
16.81,
5.7,
7'
(C. Harder,
Jeersdorf f,
0.1-m
Newtonian;
45'
tail in p.a. 30 deg);
   
16.79,
5.5,
5'
(G. Pappa,
Pedara,Sicily,
0.3-m
Camera lens + CCD;
10'
tail);
   
16.78,
5.3,
5'
(G. Pappa,
Pedara,Sicily,Italy,
12x50
Binoculars);
   
16.78,
5.5,
6'
(U. Pilz,
8x24.0
Binoculars;
0.27° tail in p.a. 30 deg);
   
16.71,
5.3,
3'
(A. Tsvetkov,
Zavolzhye,
0.05-m
Monocular 1x);
   
16.71,
5.2,
8'
(A. Balashov,
Nizhny Novgorod,
0.05-m
Camera lens + CCD;
12'
tail);
   
16.46,
5.5,
8'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x;
11.5'
tail in p.a. 25 deg);
   
16.42,
5.5,
6.5'
(O. Miyazaki,
7x50
Binoculars;
65'
tail in p.a. 35 deg);
   
16.08,
5.6,
6.7'
(D. Zubenel,
Lenexa, Kansas.,
7x50
Binoculars);
   
15.83,
5.8,
9.2'
(D. Heggie,
Aldclune, Perthshire, UK,
0.05-m
Refractor + CCD;
0.9° tail in p.a. 26 deg);
   
15.81,
5.4,
8'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.15-m
Refractor;
35'
tail in p.a. 25 deg);
   
15.81,
5.5,
3.5'
(J. Czyz,
Erding / Germany,
25x100
Binoculars;
15'
tail in p.a. 20 deg);
   
15.81,
5.8,
9.78'
(N. James,
0.072-m
Refractor + CCD);
   
15.79,
5.3,
5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.15-m
Refractor);
   
15.78,
5.3,
7'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.15-m
Refractor);
   
15.78,
5.5,
4'
(G. Pappa,
Pedara,Sicily,Italy,
0.3-m
Camera lens + CCD;
20'
tail);
   
15.77,
5.5,
4'
(S. Shurpakov,
0.07-m
Refractor);
   
15.76,
5.3,
8'
(P. Guzik,
10x42.0
Binoculars;
0.6° tail in p.a. 30 deg);
   
15.44,
5.8,
5.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
15'
tail in p.a. 10 deg);
   
15.44,
5.5,
--
(K. Yoshimoto,
8x42.0
Binoculars);
   
15.44,
6.4,
8.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
42'
tail in p.a. 28 deg);
   
15.44,
5.7,
8.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
42'
tail in p.a. 28 deg);
   
15.42,
5.5,
8.5'
(O. Miyazaki,
7x50
Binoculars;
90'
tail in p.a. 30 deg);
   
14.74,
5.5,
4'
(S. Shurpakov,
0.07-m
Refractor);
   
14.73,
5.7,
4.5'
(S. Shurpakov,
8x30
Binoculars);
   
14.47,
5.2,
5'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
13.83,
5.5,
5'
(A. Balashov,
Nizhny Novgorod,
0.5-m
Camera lens + CCD;
10'
tail);
   
13.78,
5.0,
--
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
10x50
Binoculars);
   
13.77,
5.1,
5'
(V. Gonano,
10x50
Binoculars);
   
13.77,
5.1,
--
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.12-m
Refractor;
22'
tail in p.a. 20 deg);
   
13.76,
5.8,
4.6'
(S. Shurpakov,
0.07-m
Refractor);
   
13.75,
5.8,
4.9'
(S. Shurpakov,
8x30
Binoculars);
   
13.46,
5.4,
8'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.5-m
Monocular 1x);
   
13.44,
6.0,
5.4'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
15'
tail in p.a. 14 deg);
   
13.44,
5.8,
--
(K. Yoshimoto,
8x42.0
Binoculars);
   
13.44,
5.8,
8.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
47'
tail in p.a. 28 deg);
   
13.42,
5.5,
7'
(O. Miyazaki,
7x50
Binoculars;
40'
tail in p.a. 30 deg);
   
13.10,
5.0,
3.5'
(S. Aguirre,
Hermosillo, Sonora,
0.2-m
Schmidt-Cassegrain);
   
12.88,
&5.3,
8'
(D. Hennig,
Edmonton, AB Canada,
10x52.0
Binoculars;
1.8° tail in p.a. 21 deg);
   
12.81,
5.2,
5'
(B. Granslo,
Dovre, Norway,
10x42.0
Binoculars;
1.5° tail in p.a. 20 deg);
   
11.84,
5.4,
6'
(J. Gonzalez Suarez,
10x50
Binoculars;
1.8° tail in p.a. 20 deg);
   
11.84,
6.0,
11.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.83,
5.3,
5'
(J. Gonzalez Suarez,
Naked eye);
   
11.81,
5.6,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
11.80,
5.5,
7'
(J. Navarro Pina,
Mirador Cabezo Blanco ( Murcia , Spain ),
20x80
Binoculars);
   
11.78,
5.6,
8'
(T. Karhula,
Virsbo, Sweden,
10x50
Binoculars;
1.3° tail in p.a. 25 deg);
   
11.78,
5.6,
10'
(M. Meyer,
10x50
Binoculars;
0.3° tail in p.a. 20 deg);
   
11.78,
5.3,
5.4'
(O. Guthier,
16x70
Binoculars;
0.83° tail in p.a. 20 deg);
   
11.78,
6.2,
11.5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
11.75,
5.4,
4.9'
(S. Shurpakov,
0.07-m
Refractor;
45'
tail in p.a. 17 deg);
   
11.74,
5.8,
5'
(S. Shurpakov,
8x30
Binoculars);
   
10.82,
5.5,
6'
(V. Díaz,
La Romana, Alicante, Spain,
20x80
Binoculars;
45'
tail in p.a. 18 deg);
   
10.81,
5.8,
3.3'
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
10.75,
5.8,
4.5'
(S. Shurpakov,
0.07-m
Refractor;
37'
tail in p.a. 12 deg);
   
10.73,
5.9,
4'
(S. Shurpakov,
8x30
Binoculars);
   
10.46,
6.0,
8'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
10.45,
6.0,
9.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
40'
tail in p.a. 23 deg);
   
10.44,
5.6,
14'
(K. Yoshimoto,
8x42.0
Binoculars;
0.7° tail in p.a. 15 deg);
   
10.42,
5.8,
7'
(O. Miyazaki,
7x50
Binoculars);
   
09.82,
5.7,
4.6'
(V. Kasten,
20x80
Binoculars);
   
09.78,
5.7,
24'
(T. Lehmann,
Weimar,
0.068-m
Camera lens + CCD;
0.63° tail in p.a. 6 deg);
   
09.78,
5.7,
19'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.45° tail in p.a. 359 deg);
   
09.78,
5.7,
20'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.47° tail in p.a. 357 deg);
   
09.78,
5.7,
8'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.298-m
Newtonian;
40'
tail in p.a. 28 deg);
   
09.77,
5.5,
10'
(M. Paradowski,
7x50
Binoculars);
   
09.77,
5.9,
6'
(M. Kwinta,
15x70
Binoculars;
1.5° tail in p.a. 20 deg);
   
09.77,
5.6,
8'
(J. Powichrowski,
Knyszyn,
7x50
Binoculars);
   
09.76,
5.5,
8'
(P. Guzik,
10x42.0
Binoculars;
1.5° tail in p.a. 25 deg);
   
09.42,
6.0,
7'
(O. Miyazaki,
7x50
Binoculars);
   
08.84,
5.4,
--
(J. Warell,
Lysvik, Sweden,
0.006-m
Naked eye);
   
08.82,
5.6,
4.4'
(V. Kasten,
20x80
Binoculars);
   
08.82,
5.9,
3.59'
(J. Czyz,
Erding / Germany,
25x100
Binoculars);
   
08.81,
5.6,
5'
(C. Labordena,
La Serra d Engarcera,
11x80
Binoculars;
40'
tail);
   
08.81,
5.3,
10.5'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.075-m
Refractor + CCD;
1° tail in p.a. 20 deg);
   
08.81,
5.7,
10'
(A. Scholten,
Bussloo,
8x56.0
Binoculars);
   
08.80,
5.4,
6'
(G. van Buitenen,
Dordrecht,
11x70
Binoculars;
15'
tail in p.a. 25 deg);
   
08.80,
5.4,
10.5'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.075-m
Refractor + CCD;
1° tail in p.a. 20 deg);
   
08.79,
5.7,
19'
(T. Lehmann,
Weimar,
0.068-m
Camera lens + CCD;
1° tail in p.a. 358 deg);
   
08.79,
7.4,
14.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
15.2'
tail in p.a. 20 deg);
   
08.79,
5.7,
9'
(M. Meyer,
10x50
Binoculars);
   
08.79,
5.9,
10'
(C. Harder,
Kirchheim/ Sternwarte,
7x50
Binoculars);
   
08.78,
5.4,
4'
(U. Pilz,
16x70
Binoculars;
0.28° tail in p.a. 20 deg);
   
08.78,
5.9,
--
(O. Guthier,
16x70
Binoculars);
   
08.78,
5.7,
19'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.6° tail in p.a. 17 deg);
   
08.77,
5.4,
10.3'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.034-m
Camera lens + CCD;
3.1° tail in p.a. 18 deg);
   
08.77,
5.5,
10'
(M. Paradowski,
Piotrowice Wielkie, Poland,
7x50
Binoculars;
1.5° tail in p.a. 20 deg);
   
08.77,
5.7,
20'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.54° tail in p.a. 359 deg);
   
08.77,
6.0,
6'
(M. Kwinta,
15x70
Binoculars;
1.5° tail in p.a. 20 deg);
   
08.76,
5.5,
10.3'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.034-m
Camera lens + CCD;
3.1° tail in p.a. 18 deg);
   
08.76,
5.7,
6'
(E. Banach,
12x60
Binoculars);
   
08.76,
5.5,
8'
(P. Guzik,
10x42.0
Binoculars;
1.5° tail in p.a. 20 deg);
   
08.76,
5.5,
10'
(P. Guzik,
Naked eye);
   
08.73,
5.7,
11'
(J. Powichrowski,
Knyszyn,
20x60
Binoculars);
   
08.44,
5.8,
7.9'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
30'
tail in p.a. 19 deg);
   
08.21,
6.7,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.8'
tail in p.a. 17 deg);
   
07.82,
6.6,
4.11'
(J. Czyz,
Erding / Germany,
25x100
Binoculars;
10.32'
tail in p.a. 13 deg);
   
07.81,
6.1,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
07.80,
6.0,
5'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.80,
5.2,
5'
(P. De Schrijver,
Beert,
15x80
Binoculars;
8'
tail in p.a. 22 deg);
   
07.80,
5.8,
4'
(V. Kasten,
15x50
Binoculars);
   
07.77,
5.8,
4'
(S. Shurpakov,
0.07-m
Refractor);
   
07.77,
5.6,
5'
(M. Deconinck,
Sisteron France,
0.1-m
Refractor;
50'
tail in p.a. 20 deg);
   
07.76,
6.0,
8'
(J. Powichrowski,
Knyszyn,
0.35-m
Newtonian;
0.27° tail in p.a. 22 deg);
   
07.76,
5.8,
10'
(M. Paradowski,
7x50
Binoculars);
   
07.76,
5.7,
10'
(J. Warell,
Lindby (K60),
7x50
Binoculars);
   
07.75,
5.8,
10'
(J. Powichrowski,
Knyszyn,
7x50
Binoculars);
   
07.73,
5.8,
8'
(S. Shurpakov,
8x30
Binoculars);
   
07.46,
6.0,
10'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
06.85,
6.1,
--
(M. Collins,
Everton,
7x50
Binoculars);
   
06.85,
6.2,
8'
(A. Kammerer,
Äkäslompolo (Northern Finland),
9x63.0
Binoculars;
0.4° tail in p.a. 20 deg);
   
06.84,
5.7,
5'
(B. Granslo,
Hakadal,
10x42.0
Binoculars);
   
06.81,
6.0,
4'
(G. Pappa,
Pedara,Sicily,Italy,
0.3-m
Camera lens + CCD);
   
06.81,
6.0,
5'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
06.79,
6.2,
5'
(C. Harder,
Kirchheim/ Sternwarte,
0.298-m
Newtonian);
   
06.78,
5.5,
--
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
7x50
Binoculars);
   
06.78,
5.9,
8'
(M. Meyer,
10x50
Binoculars);
   
06.78,
7.3,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14'
tail in p.a. 11 deg);
   
06.78,
5.5,
--
(T. Karhula,
Virsbo, Sweden,
0.006-m
Naked eye);
   
06.77,
5.7,
10'
(T. Karhula,
Virsbo, Sweden,
10x50
Binoculars;
0.7° tail in p.a. 10 deg);
   
06.76,
5.8,
10'
(T. Csorgei,
Bratislava, SK,
0.12-m
Refractor;
15'
tail in p.a. 20 deg);
   
06.74,
5.5,
12'
(J. Powichrowski,
Knyszyn,
7x50
Binoculars);
   
06.50,
6.5,
5'
(J. Xiong,
Xingyuan Observatory, Daocheng, China(remote),
0.203-m
Newtonian + CCD;
1.5° tail);
   
06.21,
7.1,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.5'
tail in p.a. 11 deg);
   
05.85,
6.3,
8'
(A. Kammerer,
Äkäslompolo (Northern Finland),
9x63.0
Binoculars);
   
05.83,
6.3,
10.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
05.82,
5.7,
5'
(J. Gonzalez Suarez,
10x50
Binoculars;
1.2° tail in p.a. 10 deg);
   
05.82,
5.7,
5'
(C. Labordena,
Benlloch,
11x80
Binoculars;
30'
tail);
   
05.81,
5.8,
9'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.81,
6.1,
10.5'
(J. Chambó Bris,
Valles, Valencia, Spain,
0.2-m
Newtonian + CCD;
1.8° tail in p.a. 11 deg);
   
05.79,
5.8,
--
(O. Guthier,
16x70
Binoculars);
   
05.77,
6.5,
9'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
05.73,
5.9,
7'
(A. Novichonok,
Shapshezero, light green LP zone (Lorenz, 2022),
10x50
Binoculars;
0.5° tail in p.a. 15 deg);
   
05.10,
5.9,
8'
(C. Hergenrother,
10x50
Binoculars);
   
04.82,
6.5,
5'
(V. Bahyl,
Julia Observatory, Zvolenská Slatina, Slovakia, Europe,
0.225-m
Schmidt-Cassegrain + CCD;
9'
tail);
   
04.81,
6.0,
9'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
04.80,
5.2,
6'
(P. De Schrijver,
Beert,
15x80
Binoculars;
9'
tail in p.a. 27 deg);
   
04.78,
7.5,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 14 deg);
   
04.78,
6.5,
9.8'
(J. Cerny,
25x100
Binoculars;
0.9° tail in p.a. 1 deg);
   
04.78,
6.4,
9.8'
(J. Cerny,
8x50
Binoculars);
   
04.76,
5.8,
10'
(T. Csorgei,
Bratislava, SK,
10x50
Binoculars);
   
04.75,
6.3,
10'
(J. Warell,
Lindby Observatory (K60), Skurup, Sweden,
7x50
Binoculars);
   
04.46,
5.8,
12'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
04.13,
6.1,
8'
(C. Hergenrother,
10x50
Binoculars);
   
03.93,
6.5,
10'
(A. Kammerer,
Äkäslompolo (Northern Finland),
9x63.0
Binoculars);
   
03.86,
5.8,
--
(M. Collins,
Everton,
0.05-m
"small telescopes and finders" with aperture not exceeding 4 inches);
   
03.82,
6.0,
4'
(V. Díaz,
La Romana, Alicante, Spain,
20x80
Binoculars;
18'
tail in p.a. 10 deg);
   
03.81,
6.5,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
03.80,
5.7,
10'
(A. Scholten,
Eerbeek,
8x56.0
Binoculars);
   
03.78,
5.9,
20'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.74° tail in p.a. 352 deg);
   
03.77,
5.6,
12'
(G. Scheerle,
9x63.0
Binoculars);
   
03.77,
6.1,
8'
(M. Meyer,
10x50
Binoculars);
   
03.77,
5.8,
10'
(P. Guzik,
10x42.0
Binoculars;
1.2° tail in p.a. 15 deg);
   
03.77,
5.8,
8'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain;
0.18° tail in p.a. 45 deg);
   
03.76,
6.0,
8'
(V. Gonano,
10x50
Binoculars);
   
03.76,
6.0,
10'
(T. Csorgei,
Bratislava, SK,
10x60
Binoculars);
   
03.46,
5.9,
10'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
03.42,
6.4,
5.4'
(O. Miyazaki,
20x80
Binoculars;
36'
tail in p.a. 25 deg);
   
02.86,
5.6,
10'
(A. Scholten,
Eerbeek,
8x56.0
Binoculars);
   
02.82,
6.3,
6.3'
(J. Czyz,
Erding / Germany,
25x100
Binoculars);
   
02.81,
5.8,
4'
(V. Kasten,
15x50
Binoculars);
   
02.81,
6.3,
10.7'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
02.78,
5.8,
21'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.66° tail in p.a. 346 deg);
   
02.46,
6.1,
9'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
02.40,
5.7,
12'
(K. Yoshimoto,
8x42.0
Binoculars;
0.5° tail in p.a. 10 deg);
   
01.84,
5.6,
10'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
01.82,
6.0,
10.1'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
01.79,
5.9,
4.5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
40x126.0
Binoculars;
1° tail in p.a. 25 deg);
   
01.78,
6.0,
7.71'
(N. James,
0.072-m
Refractor + CCD);
   
01.77,
6.0,
8'
(V. Gonano,
10x50
Binoculars);
   
01.46,
6.5,
8'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.05-m
Monocular 1x);
   
01.13,
6.0,
8'
(C. Hergenrother,
10x50
Binoculars);
feb
29.87,
6.1,
11.3'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
29.83,
6.1,
10'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
29.82,
6.9,
4.01'
(J. Czyz,
Erding / Germany,
25x100
Binoculars);
   
29.82,
5.7,
10'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
30'
tail in p.a. 15 deg);
   
29.81,
6.6,
5'
(C. Labordena,
11x80
Binoculars;
8'
tail);
   
29.80,
5.7,
14'
(J. Chambó Bris,
Valles, Valencia, Spain,
0.2-m
Newtonian + CCD;
0.8° tail in p.a. 11 deg);
   
29.80,
6.7,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
29.78,
5.9,
9'
(M. Meyer,
10x50
Binoculars);
   
29.77,
5.9,
20'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.49° tail in p.a. 356 deg);
   
29.76,
5.8,
6'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
29.08,
5.9,
5.5'
(D. Zubenel,
Pottawatomie State Lake # 1, Pottawatomie County, Kansas.,
0.108-m
Newtonian;
7'
tail);
   
28.81,
6.0,
7.6'
(J. Chambó Bris,
Benali, Valencia, Spain,
20x60
Binoculars);
   
28.81,
6.6,
5'
(C. Labordena,
Benlloch,
11x80
Binoculars;
8'
tail in p.a. 19 deg);
   
28.81,
6.8,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
28.80,
7.2,
8'
(J. Navarro Pina,
Mirador Cabezo Blanco ( Murcia , Spain ),
20x80
Binoculars);
   
28.78,
6.4,
--
(N. Novikov,
Russia, d. Enaberdino,
0.253-m
Newtonian);
   
28.77,
6.0,
34'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.62° tail in p.a. 344 deg);
   
28.41,
6.9,
5.6'
(O. Miyazaki,
20x80
Binoculars;
24'
tail in p.a. 25 deg);
   
27.83,
6.7,
10.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.81,
6.9,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
27.78,
8.1,
11'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 13 deg);
   
27.43,
7.0,
3.5'
(O. Miyazaki,
20x80
Binoculars);
   
26.86,
6.9,
5'
(J. Shanklin,
20x80
Binoculars);
   
26.83,
6.9,
10.7'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.82,
6.7,
10.72'
(N. James,
0.072-m
Refractor + CCD);
   
26.82,
7.1,
5.6'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain;
9.4'
tail in p.a. 18 deg);
   
26.80,
7.0,
--
(A. Russo,
Gibraltar,
15x50
Binoculars);
   
26.75,
6.5,
8'
(P. Guzik,
10x42.0
Binoculars);
   
26.45,
6.8,
3.2'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD);
   
26.44,
7.2,
7.3'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD);
   
26.44,
6.6,
7.3'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
50'
tail in p.a. 8 deg);
   
26.42,
6.7,
7'
(K. Yoshimoto,
20x100
Binoculars;
20'
tail in p.a. 10 deg);
   
25.82,
6.5,
7'
(V. Díaz,
Elche ciudad,
20x80
Binoculars);
   
25.80,
6.0,
13.3'
(J. Czyz,
Erding / Germany,
25x100
Binoculars;
22.46'
tail in p.a. 342 deg);
   
25.80,
6.5,
5.4'
(V. Kasten,
20x80
Binoculars);
   
25.80,
6.2,
7'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
25.79,
6.4,
17'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.59° tail in p.a. 346 deg);
   
25.78,
7.0,
5'
(G. Pappa,
Pedara,Sicily,Italy,
0.3-m
Camera lens + CCD);
   
25.78,
6.3,
10'
(V. Kasten,
15x50
Binoculars);
   
25.78,
6.7,
9'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.77,
6.4,
20'
(S. Fritsche,
Soerth,
0.1-m
Refractor + CCD;
0.56° tail in p.a. 353 deg);
   
25.76,
6.0,
8'
(U. Pilz,
7x50
Binoculars);
   
25.74,
6.8,
6'
(E. Banach,
0.25-m
Newtonian);
   
25.65,
7.0,
5'
(N. Novikov,
Russia, d. Enaberdino,
0.254-m
Newtonian;
3'
tail);
   
24.80,
7.1,
6'
(C. Labordena,
Benlloch,
11x80
Binoculars);
   
24.78,
6.7,
10.4'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.78,
6.5,
17'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.73° tail in p.a. 352 deg);
   
24.76,
6.5,
16'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.66° tail in p.a. 352 deg);
   
24.75,
6.4,
16'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.38° tail in p.a. 356 deg);
   
23.80,
7.0,
6'
(V. Díaz,
Elche ciudad,
20x80
Binoculars);
   
23.79,
6.2,
7'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
23.79,
6.2,
10'
(G. Scheerle,
9x63.0
Binoculars);
   
23.79,
7.0,
9.8'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
23.78,
6.8,
6'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
25x126.0
Binoculars;
5'
tail in p.a. 10 deg);
   
23.77,
6.6,
13'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
22.79,
6.9,
10.7'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
22.16,
6.9,
6'
(P. Guzik,
10x42.0
Binoculars);
   
21.83,
7.1,
10.7'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
21.80,
6.1,
7.3'
(D. Heggie,
East Lothian,UK,
0.25-m
Ritchey-Chretien + CCD;
8'
tail in p.a. 9 deg);
   
20.80,
7.4,
7.5'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
28'
tail in p.a. 13 deg);
   
19.82,
7.4,
8'
(V. Gonano,
Udine, Italy,
10x50
Binoculars;
8.3'
tail in p.a. 5 deg);
   
19.80,
7.4,
7.5'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
29'
tail in p.a. 12 deg);
   
19.12,
6.9,
9'
(K. Yoshimoto,
0.431-m
Newtonian + CCD);
   
19.12,
6.8,
12.5'
(K. Yoshimoto,
0.431-m
Newtonian + CCD;
17'
tail in p.a. 8 deg);
   
19.06,
7.3,
3.1'
(D. Zubenel,
De Soto, Kansas.,
0.152-m
Newtonian);
   
18.84,
7.3,
9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.82,
7.4,
5.6'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain;
7.3'
tail in p.a. 16 deg);
   
18.79,
7.4,
9.8'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
18.78,
6.3,
4'
(J. Shanklin,
20x80
Binoculars);
13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.77,
11.5,
1'
(G. Pappa,
Pedara,Sicily,
0.3-m
Camera lens + CCD);
   
16.81,
11.5,
0.8'
(C. Harder,
Jeersdorf f,
0.296-m
Newtonian);
   
15.45,
11.4,
1.3'
(O. Miyazaki,
0.32-m
Newtonian);
   
13.44,
12.5,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
12.41,
11.1,
3.3'
(C. Wyatt,
0.4-m
Newtonian);
   
11.87,
11.1,
4.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
10.48,
11.3,
4'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD);
   
10.44,
11.8,
2'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
09.81,
10.9,
9.9'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.79,
11.9,
0.9'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
08.79,
11.9,
1.4'
(T. Karhula,
Lysvik, Sweden,
0.305-m
Newtonian);
   
08.79,
11.8,
1.5'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
08.78,
11.6,
2'
(P. Guzik,
0.326-m
Newtonian);
   
08.78,
11.4,
2'
(M. Meyer,
0.254-m
Newtonian);
   
07.80,
10.8,
9.1'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
   
07.80,
12.2,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
07.41,
11.3,
3.2'
(C. Wyatt,
0.4-m
Newtonian);
   
06.87,
11.3,
4.32'
(K. Hills,
0.5-m
Newtonian + CCD);
   
06.79,
12.4,
0.6'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
05.84,
10.9,
3.5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
05.41,
11.4,
3.4'
(C. Wyatt,
0.4-m
Newtonian);
   
04.04,
11.7,
4.9'
(K. Yoshimoto,
0.25-m
Newtonian + CCD);
   
03.78,
12.0,
1.5'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
02.84,
11.4,
6.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.05° tail in p.a. 96 deg);
feb
29.82,
11.8,
4.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
28.43,
12.9,
1.2'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.82,
11.4,
9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
25.81,
11.8,
6.2'
(S. Fritsche,
Soerth,
0.1-m
Refractor + CCD);
   
25.79,
12.6,
1.2'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
20.52,
14.0,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
26P/Grigg-Skjellerup
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb
18.44,
17.1,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
15.86,
13.1,
3.4'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
14.92,
11.8,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
13.92,
13.1,
3.57'
(K. Hills,
0.5-m
Newtonian + CCD);
   
13.89,
14.6,
0.4'
(D. Heggie,
Edinburgh, UK,
0.13-m
Newtonian + CCD);
   
12.89,
12.9,
2.2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
11.85,
12.3,
5.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
10.01,
11.6,
9.9'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.97,
12.7,
4.51'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.83,
14.7,
0.6'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
08.97,
13.3,
1.2'
(W. Kutschera,
0.508-m
Newtonian);
   
08.87,
12.8,
2.9'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.82,
12.8,
2'
(P. Guzik,
0.326-m
Newtonian);
   
07.93,
16.1,
0.89'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
07.90,
11.8,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.96,
13.7,
2.63'
(K. Hills,
0.5-m
Newtonian + CCD);
   
06.81,
13.8,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.01,
12.2,
5.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
05.47,
14.9,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
04.98,
13.1,
3.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.88,
13.4,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
04.02,
11.2,
5.7'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
03.92,
13.3,
5.5'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.59,
13.2,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
02.99,
11.5,
11'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
02.82,
14.8,
0.8'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
01.86,
10.8,
11'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
feb
29.94,
11.8,
2.2'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
29.90,
11.0,
11.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
29.84,
13.8,
2'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
29.02,
11.7,
7'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
28.87,
14.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.86,
12.4,
1.8'
(W. Kutschera,
0.508-m
Newtonian);
   
27.86,
12.0,
5.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.82,
12.5,
3.1'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
27.80,
14.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
26.93,
12.7,
2.44'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
26.87,
12.9,
3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.87,
14.2,
1.6'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
24.82,
13.6,
2.2'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
23.90,
14.3,
1.9'
(D. Heggie,
Aldclune, Perthshire, UK,
0.05-m
Refractor + CCD);
   
22.90,
14.4,
0.7'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
20.81,
12.9,
2.9'
(D. Heggie,
Edinburgh, UK,
0.05-m
Refractor + CCD);
   
18.89,
12.7,
2.44'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
18.86,
12.3,
4.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
32P/Comas Sola
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
13.80,
15.4,
0.44'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD;
1'
tail in p.a. 83 deg);
   
12.40,
14.1,
0.6'
(C. Wyatt,
0.4-m
Newtonian);
   
11.80,
15.5,
0.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
08.83,
14.0,
1.5'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.075-m
Refractor + CCD);
   
08.82,
14.2,
1.5'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.075-m
Refractor + CCD);
   
08.82,
14.2,
2.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.08° tail in p.a. 89 deg);
   
08.79,
14.4,
0.8'
(P. Guzik,
0.326-m
Newtonian);
   
07.83,
14.5,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
06.74,
15.6,
0.44'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
feb
29.85,
14.4,
1.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 85 deg);
   
28.81,
13.9,
2.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
2'
tail in p.a. 88 deg);
   
26.80,
15.4,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
24.82,
14.4,
1.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.07° tail in p.a. 85 deg);
   
18.82,
15.4,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
44P/Reinmuth
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.04,
20.0,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
62P/Tsuchinshan
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.58,
11.8,
3.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5'
tail in p.a. 285 deg);
   
16.67,
11.7,
3.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5.5'
tail in p.a. 286 deg);
   
16.19,
10.3,
9.02'
(K. Hills,
0.5-m
Newtonian + CCD);
   
15.66,
11.7,
3.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5.6'
tail in p.a. 294 deg);
   
13.53,
11.8,
2.1'
(O. Miyazaki,
0.32-m
Newtonian);
   
12.87,
11.6,
2.5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
12.64,
11.4,
3.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
6.5'
tail in p.a. 287 deg);
   
12.47,
10.5,
4.6'
(C. Wyatt,
0.4-m
Newtonian);
   
11.99,
10.0,
7.1'
(W. Kutschera,
0.12-m
Refractor);
   
11.91,
10.3,
9.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.10,
10.0,
9.96'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.79,
12.2,
1.2'
(O. Miyazaki,
0.32-m
Newtonian);
   
10.04,
9.4,
19'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.41° tail in p.a. 289 deg);
   
09.92,
11.0,
3'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
09.79,
11.1,
4.3'
(O. Miyazaki,
0.32-m
Newtonian);
   
09.61,
11.4,
3.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
6.7'
tail in p.a. 286 deg);
   
09.00,
9.6,
8'
(P. Guzik,
25x100
Binoculars);
   
08.98,
11.8,
1.5'
(M. Filipek,
0.4-m
Newtonian);
   
08.96,
9.4,
18'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.7° tail in p.a. 291 deg);
   
08.93,
11.3,
3.5'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
08.88,
10.8,
--
(G. Pappa,
Namibia (remote control),
0.106-m
Refractor + CCD;
10'
tail);
   
08.79,
12.0,
1.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
08.59,
11.8,
2.3'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
08.15,
10.0,
4.5'
(M. Meyer,
0.152-m
Refractor);
   
08.09,
11.0,
2.5'
(E. Banach,
0.25-m
Newtonian);
   
08.07,
10.7,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
08.06,
10.8,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
22.4'
tail in p.a. 296 deg);
   
07.93,
10.9,
3'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
07.90,
11.7,
3.5'
(J. Powichrowski,
Knyszyn,
0.35-m
Newtonian);
   
07.47,
10.0,
5.1'
(C. Wyatt,
0.4-m
Newtonian);
   
06.97,
11.3,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
21.8'
tail in p.a. 295 deg);
   
06.05,
9.4,
14.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
05.94,
11.5,
3'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
05.51,
10.0,
7'
(C. Wyatt,
0.4-m
Newtonian);
   
05.03,
11.1,
2'
(M. Kwinta,
0.3-m
Newtonian);
   
04.63,
11.3,
4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5.9'
tail in p.a. 288 deg);
   
04.12,
10.9,
2'
(M. Kwinta,
0.3-m
Newtonian);
   
04.11,
9.0,
22'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.37° tail in p.a. 285 deg);
   
04.07,
11.0,
4'
(E. Banach,
0.25-m
Newtonian);
   
04.04,
10.9,
9.2'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.99,
9.8,
7.6'
(W. Kutschera,
0.25-m
Newtonian);
   
03.92,
10.0,
5'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
03.60,
11.3,
1.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
03.18,
9.8,
8.84'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.03,
9.0,
24'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.22° tail in p.a. 288 deg);
feb
29.99,
9.2,
20'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.52° tail in p.a. 292 deg);
   
29.98,
10.2,
7'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
29.96,
9.9,
9.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
29.06,
9.7,
9.6'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.13° tail in p.a. 298 deg);
   
29.03,
11.3,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.8'
tail in p.a. 288 deg);
   
27.96,
11.1,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
7.9'
tail in p.a. 294 deg);
   
25.01,
8.9,
22'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.38° tail in p.a. 290 deg);
   
21.21,
8.8,
19'
(T. Lehmann,
Nerpio (remote),
0.25-m
Newtonian + CCD;
0.25° tail in p.a. 289 deg);
   
20.67,
11.1,
3.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
20.17,
10.1,
5.45'
(K. Hills,
0.5-m
Newtonian + CCD);
65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.15,
17.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
08.08,
16.6,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.99,
16.6,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.14,
17.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
feb
29.05,
16.5,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
103P/Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.03,
17.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.92,
12.7,
1.3'
(W. Kutschera,
0.508-m
Newtonian);
   
09.89,
15.3,
2.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
09.50,
17.0,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.04,
16.5,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.59,
16.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
06.92,
16.8,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.59,
16.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.93,
17.6,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.58,
16.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
04.58,
16.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
03.81,
13.2,
0.8'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
01.54,
16.5,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
feb
29.92,
12.8,
1'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
29.90,
14.4,
2.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
28.99,
16.1,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.88,
15.5,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.52,
15.9,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
20.57,
15.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
121P/Shoemaker-Holt
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb
20.03,
19.8,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
144P/Kushida
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
13.85,
13.7,
1.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
13.45,
11.6,
2.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
13.15,
[10.3,
--
(S. Aguirre,
Hermosillo, Sonora,
0.2-m
Schmidt-Cassegrain);
   
12.88,
12.6,
2.2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
12.42,
10.1,
4.5'
(C. Wyatt,
0.4-m
Newtonian);
   
11.89,
10.0,
7.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.87,
9.9,
5.2'
(W. Kutschera,
0.08-m
Refractor);
   
11.84,
13.8,
1.22'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
11.79,
10.0,
5.5'
(M. Meyer,
0.152-m
Refractor);
   
11.54,
11.1,
3.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
10.54,
10.5,
3.4'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
10.53,
11.6,
2.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
10.52,
10.8,
3.6'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
10.20,
10.1,
4'
(C. Hergenrother,
Tanque Verde, Arizona,
30x125.0
Binoculars);
   
09.93,
9.4,
12'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.81,
9.8,
5.5'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.298-m
Newtonian);
   
09.53,
11.6,
2.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.45,
11.4,
2'
(O. Miyazaki,
0.32-m
Newtonian);
   
08.89,
9.7,
13'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
08.86,
10.2,
4.2'
(W. Kutschera,
0.12-m
Refractor);
   
08.81,
10.5,
5'
(P. Guzik,
0.326-m
Newtonian);
   
08.81,
10.1,
3.5'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.298-m
Newtonian);
   
08.80,
10.2,
4'
(M. Meyer,
0.254-m
Newtonian);
   
08.80,
10.4,
4'
(E. Banach,
0.25-m
Newtonian);
   
08.79,
10.3,
1.5'
(M. Kwinta,
0.3-m
Newtonian);
   
07.87,
10.5,
3.76'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
07.83,
13.4,
1.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
07.78,
11.1,
2.3'
(J. Powichrowski,
Knyszyn,
0.35-m
Newtonian);
   
07.53,
11.9,
2.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.43,
10.0,
2.9'
(C. Wyatt,
0.4-m
Newtonian);
   
06.89,
10.8,
2.3'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
06.83,
10.4,
4.51'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
06.82,
13.6,
1.45'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
06.81,
9.5,
4'
(C. Harder,
Kirchheim/ Sternwarte,
0.298-m
Newtonian);
   
06.80,
9.6,
5'
(M. Meyer,
0.152-m
Refractor);
   
06.53,
11.9,
2.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.94,
10.4,
1.5'
(M. Filipek,
0.25-m
Newtonian);
   
05.92,
10.2,
1.5'
(M. Kwinta,
0.3-m
Newtonian);
   
05.92,
12.1,
2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
05.91,
11.5,
2.5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
05.89,
9.6,
7.71'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.86,
9.7,
5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
05.52,
11.4,
3.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.42,
9.7,
4.5'
(C. Wyatt,
0.4-m
Newtonian);
   
03.87,
10.7,
6.4'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.87,
10.9,
2.5'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
03.86,
9.6,
5'
(C. Harder,
Kirchheim/ Sternwarte,
0.298-m
Newtonian);
   
03.80,
9.8,
5'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
03.78,
9.2,
5.5'
(M. Meyer,
0.152-m
Refractor);
   
03.57,
11.1,
1.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
03.51,
11.7,
2.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
02.92,
10.4,
2.6'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
02.91,
10.8,
6'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
02.90,
9.4,
18'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
02.88,
9.5,
16'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
02.86,
10.6,
3.01'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
02.79,
9.8,
6'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
01.55,
11.4,
2.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
feb
29.87,
11.2,
2.5'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
29.87,
9.4,
17'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
29.79,
9.8,
5'
(M. Meyer,
0.152-m
Refractor);
   
28.92,
11.3,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
28.85,
9.4,
15'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
28.77,
9.4,
--
(U. Pilz,
16x70
Binoculars);
   
28.48,
10.2,
4'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
28.44,
11.0,
1.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.82,
11.4,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.45,
10.9,
2.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
26.85,
9.4,
13.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.84,
10.1,
2.8'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
25.89,
9.5,
15'
(S. Fritsche,
Soerth,
0.1-m
Refractor + CCD);
   
25.81,
11.4,
2.4'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
24.87,
9.4,
16'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
23.84,
11.0,
3'
(G. Scheerle,
0.235-m
Schmidt-Cassegrain);
   
19.93,
11.5,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
18.84,
10.7,
2.63'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
150P/LONEOS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
13.94,
17.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
08.81,
16.5,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
04.99,
17.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.91,
16.9,
0.7'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
feb
29.92,
15.8,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
29.01,
15.5,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.93,
16.2,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
170P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
06.85,
18.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
207P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.62,
15.9,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.60,
15.5,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
15.60,
15.6,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
14.99,
15.1,
0.94'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.57,
15.5,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.79,
14.6,
1.2'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
08.57,
15.7,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.95,
15.2,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.51,
15.3,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
06.85,
14.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.58,
14.7,
0.9'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.53,
13.6,
2.7'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.08° tail in p.a. 76 deg);
   
05.48,
14.7,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
04.92,
15.2,
0.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
04.91,
14.5,
1.13'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.58,
14.7,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
03.76,
14.0,
1.7'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
feb
26.52,
14.5,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
20.53,
15.1,
0.9'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
216P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
03.17,
18.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
feb
20.24,
18.4,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
226P/Pigott-LINEAR-Kowalski
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
09.81,
15.1,
2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
02.82,
14.8,
2.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
227P/Catalina-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
08.93,
15.2,
1.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.6'
tail in p.a. 128 deg);
   
08.03,
15.1,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
08.02,
15.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.1'
tail in p.a. 131 deg);
   
06.88,
15.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.6'
tail in p.a. 130 deg);
   
05.99,
14.7,
0.5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
1'
tail in p.a. 122 deg);
   
05.94,
15.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.94,
15.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.4'
tail in p.a. 131 deg);
   
04.07,
15.3,
1.1'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.4'
tail in p.a. 128 deg);
   
03.99,
14.9,
0.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.06,
15.4,
0.9'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.4'
tail in p.a. 126 deg);
   
02.94,
15.1,
0.38'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
02.94,
14.6,
2.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
feb
28.98,
15.3,
1'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
28.94,
15.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.5'
tail in p.a. 134 deg);
   
27.87,
14.9,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
234P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
04.92,
17.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
244P/Scotti
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.10,
19.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
433P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
08.04,
19.7,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
473P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
09.80,
13.0,
0.8'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
08.78,
12.8,
4'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.034-m
Camera lens + CCD);
   
08.77,
12.7,
4'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.034-m
Camera lens + CCD);
   
08.77,
13.0,
1.5'
(P. Guzik,
0.326-m
Newtonian);
   
08.76,
12.5,
6.6'
(M. Paradowski,
Piotrowice Wielkie, Poland,
0.034-m
Camera lens + CCD);
feb
29.79,
12.5,
4.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
475P/Spacewatch-LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb
20.18,
18.6,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
479P/Elenin
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.49,
15.4,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.59,
15.4,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
15.59,
15.5,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.67,
14.8,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
11.50,
15.0,
0.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
10.57,
14.8,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.85,
12.2,
6'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.57,
15.6,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.86,
12.2,
6.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
08.57,
15.8,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.97,
14.9,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.96,
14.9,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
07.93,
11.6,
8.4'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
   
07.52,
15.4,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
06.90,
15.1,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.51,
15.6,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.52,
15.0,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
03.96,
14.3,
1.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.94,
12.6,
4.6'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
feb
29.94,
12.7,
5.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
28.96,
15.2,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
28.89,
13.1,
3.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
27.89,
15.1,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
25.93,
15.2,
0.9'
(S. Fritsche,
Soerth,
0.1-m
Refractor + CCD;
0.7'
tail in p.a. 82 deg);
   
25.92,
12.9,
4.7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
04.54,
15.3,
2.5'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD);
C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.52,
14.6,
0.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.43,
13.8,
0.9'
(C. Wyatt,
0.4-m
Newtonian);
   
11.51,
14.3,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
10.47,
13.8,
1'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
09.84,
13.6,
2.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.35° tail in p.a. 181 deg);
   
09.81,
13.5,
1'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
09.52,
14.2,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.84,
13.1,
1.2'
(W. Kutschera,
0.508-m
Newtonian);
   
08.82,
14.1,
0.7'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
08.80,
13.5,
1'
(P. Guzik,
0.326-m
Newtonian);
   
07.86,
14.2,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
07.51,
14.1,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.42,
13.8,
0.4'
(C. Wyatt,
0.4-m
Newtonian);
   
06.79,
15.1,
0.55'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
06.53,
14.2,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.88,
14.5,
0.75'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.85,
13.7,
1.2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
05.52,
13.9,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
0.5'
tail in p.a. 128 deg);
   
05.47,
13.1,
1.4'
(C. Wyatt,
0.4-m
Newtonian);
   
03.87,
12.7,
0.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
03.84,
14.0,
2.4'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.83,
13.5,
3.8'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
1.9'
tail in p.a. 172 deg);
   
02.87,
13.7,
0.9'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
feb
28.48,
12.7,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.90,
13.8,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
25.88,
13.4,
2.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.23° tail in p.a. 179 deg);
   
25.85,
13.4,
3.2'
(S. Fritsche,
Soerth,
0.1-m
Refractor + CCD);
   
18.85,
13.4,
0.94'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
C/2019 L3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
07.98,
13.7,
2.9'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
07.08,
15.4,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.16,
15.5,
1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
feb
25.16,
15.1,
1.7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.15° tail in p.a. 252 deg);
C/2019 U5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.50,
14.5,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.50,
15.0,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.46,
14.6,
0.4'
(C. Wyatt,
0.4-m
Newtonian);
   
11.51,
15.0,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
10.50,
14.6,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.51,
14.6,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.57,
14.8,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.46,
14.3,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
06.51,
14.9,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.50,
14.3,
0.4'
(C. Wyatt,
0.4-m
Newtonian);
feb
22.59,
14.0,
1.5'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.12° tail in p.a. 64 deg);
C/2020 F2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
10.08,
18.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.20,
18.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.51,
15.1,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.1'
tail in p.a. 192 deg);
   
16.50,
15.4,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.45,
15.1,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
11.51,
15.0,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.8'
tail in p.a. 196 deg);
   
10.50,
15.7,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.52,
15.1,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.52,
14.7,
1.6'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.1° tail in p.a. 201 deg);
   
08.56,
15.4,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.51,
14.9,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.9'
tail in p.a. 192 deg);
   
07.44,
15.0,
0.6'
(C. Wyatt,
0.4-m
Newtonian);
   
06.52,
15.0,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.6'
tail in p.a. 197 deg);
   
05.54,
14.9,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
2.6'
tail in p.a. 207 deg);
   
05.49,
15.3,
0.4'
(C. Wyatt,
0.4-m
Newtonian);
   
04.56,
14.7,
1.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
feb
22.55,
14.4,
1.8'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.12° tail in p.a. 203 deg);
C/2020 R7 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
15.25,
19.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
05.40,
13.1,
1.1'
(C. Wyatt,
0.4-m
Newtonian);
C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.54,
14.3,
0.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.51,
14.2,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.46,
14.0,
1'
(C. Wyatt,
0.4-m
Newtonian);
   
11.52,
14.1,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 274 deg);
   
10.51,
14.4,
0.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.54,
14.1,
1.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
08.58,
14.3,
0.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
07.53,
14.2,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 271 deg);
   
07.45,
13.7,
0.8'
(C. Wyatt,
0.4-m
Newtonian);
   
06.54,
14.3,
0.8'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.65,
13.9,
1.9'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 265 deg);
   
05.57,
14.3,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
0.8'
tail in p.a. 274 deg);
   
05.51,
14.3,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
04.59,
14.7,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
01.56,
14.1,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 269 deg);
feb
21.80,
14.2,
1.2'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 263 deg);
   
21.61,
14.4,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
20.60,
14.7,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.84,
10.7,
1.9'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5.7'
tail in p.a. 250 deg);
   
17.18,
9.7,
2'
(M. Meyer,
0.152-m
Refractor);
   
16.84,
10.7,
2.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
6.7'
tail in p.a. 248 deg);
   
16.81,
10.6,
2.1'
(O. Miyazaki,
0.32-m
Newtonian;
3.5'
tail in p.a. 260 deg);
   
14.85,
9.8,
1.8'
(J. Pile,
San Rafael, Bulacan, Philippines,
0.114-m
Newtonian);
   
13.81,
10.6,
2.3'
(O. Miyazaki,
0.32-m
Newtonian);
   
10.81,
10.1,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
09.83,
9.9,
2.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
6.6'
tail in p.a. 245 deg);
   
09.81,
11.2,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
09.09,
10.0,
1.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian;
5'
tail in p.a. 280 deg);
   
08.81,
10.9,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
08.19,
9.3,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
08.16,
9.9,
3'
(M. Meyer,
0.152-m
Refractor);
   
08.13,
10.1,
2'
(E. Banach,
0.25-m
Newtonian);
   
08.12,
9.9,
3'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian;
6.5'
tail in p.a. 260 deg);
   
07.83,
10.7,
3.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
5.7'
tail in p.a. 248 deg);
   
07.15,
9.6,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
9.5'
tail in p.a. 246 deg);
   
07.14,
9.6,
3'
(T. Karhula,
Virsbo, Sweden,
25x100
Binoculars);
   
06.86,
9.7,
6.6'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.52° tail in p.a. 236 deg);
   
06.18,
8.9,
5.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
04.18,
9.4,
13'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.35° tail in p.a. 232 deg);
feb
25.19,
9.6,
7.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.91° tail in p.a. 228 deg);
   
20.83,
10.5,
1.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
6.8'
tail in p.a. 242 deg);
   
19.29,
10.2,
3'
(J. de Souza Aguiar,
0.3-m
Newtonian);
C/2021 S4 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
13.83,
17.9,
0.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
11.85,
17.8,
0.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
07.86,
17.3,
0.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
02.87,
17.2,
0.7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
C/2021 T4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.18,
17.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
08.13,
16.3,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.11,
16.2,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
07.01,
16.3,
0.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.19,
17.6,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
06.09,
15.9,
0.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
feb
29.08,
15.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
22.25,
17.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
21.22,
15.8,
1.8'
(T. Lehmann,
Nerpio (remote),
0.25-m
Newtonian + CCD);
C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.94,
13.6,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.4'
tail in p.a. 131 deg);
   
13.86,
14.5,
0.55'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD;
1.1'
tail in p.a. 128 deg);
   
13.47,
12.2,
1.1'
(O. Miyazaki,
0.32-m
Newtonian);
   
12.88,
13.8,
1'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
1.9'
tail in p.a. 127 deg);
   
12.42,
13.8,
0.8'
(C. Wyatt,
0.4-m
Newtonian);
   
11.87,
14.5,
0.55'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD;
1.6'
tail in p.a. 117 deg);
   
09.97,
13.6,
1.8'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.04° tail in p.a. 125 deg);
   
09.82,
13.3,
0.8'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian);
   
09.46,
12.6,
0.9'
(O. Miyazaki,
0.32-m
Newtonian);
   
08.98,
13.6,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
2.5'
tail in p.a. 119 deg);
   
08.91,
13.6,
1.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.08° tail in p.a. 130 deg);
   
08.91,
12.8,
1.1'
(W. Kutschera,
0.508-m
Newtonian);
   
08.86,
13.8,
0.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
08.83,
13.2,
0.8'
(P. Guzik,
0.326-m
Newtonian);
   
07.99,
13.6,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
07.95,
12.5,
1'
(W. Kutschera,
0.508-m
Newtonian;
0.07° tail);
   
07.92,
13.1,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.4'
tail in p.a. 127 deg);
   
07.91,
13.4,
0.56'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
07.91,
13.8,
0.6'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
07.89,
13.9,
0.55'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD;
1.6'
tail in p.a. 124 deg);
   
07.48,
13.5,
0.7'
(C. Wyatt,
0.4-m
Newtonian);
   
06.89,
14.2,
0.44'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
06.83,
13.3,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.7'
tail in p.a. 127 deg);
   
06.51,
14.0,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.5'
tail in p.a. 125 deg);
   
05.99,
13.6,
1.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
05.95,
14.0,
0.75'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.51,
13.8,
1.1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.7'
tail in p.a. 126 deg);
   
05.46,
13.5,
0.7'
(C. Wyatt,
0.4-m
Newtonian;
1.2'
tail in p.a. 126 deg);
   
04.90,
13.4,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
4.1'
tail in p.a. 128 deg);
   
03.98,
13.3,
2.8'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.06° tail in p.a. 132 deg);
   
03.90,
14.5,
0.9'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
03.88,
12.6,
0.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
   
02.95,
13.3,
2.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.05° tail in p.a. 131 deg);
   
02.90,
14.1,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
02.89,
13.4,
0.56'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
   
02.81,
13.2,
0.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian);
feb
29.97,
13.5,
1.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 127 deg);
   
29.00,
13.5,
0.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
28.94,
13.4,
1.8'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
2.2'
tail in p.a. 128 deg);
   
28.90,
13.4,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.1'
tail in p.a. 127 deg);
   
28.47,
12.5,
1.1'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.85,
13.3,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.7'
tail in p.a. 130 deg);
   
27.46,
13.0,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
26.96,
13.2,
0.75'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD;
2'
tail in p.a. 142 deg);
   
24.91,
13.4,
1.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 131 deg);
   
18.87,
13.1,
0.75'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD;
2.1'
tail in p.a. 130 deg);
C/2022 L2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.57,
14.5,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.57,
14.4,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
14.17,
15.2,
0.56'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.60,
14.9,
0.6'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
09.61,
14.8,
0.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
05.71,
13.7,
3'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.12° tail in p.a. 36 deg);
   
05.63,
15.0,
0.7'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
feb
22.26,
15.5,
0.56'
(K. Hills,
0.5-m
Newtonian + CCD);
   
21.83,
13.9,
2.5'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 31 deg);
   
20.69,
15.2,
0.5'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
05.86,
17.1,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2022 T1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
06.14,
17.7,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
C/2022 U3 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
10.95,
18.6,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.64,
12.3,
1.2'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
16.92,
11.9,
0.8'
(J. Xiong,
Xingyuan Observatory, Daocheng, China(remote),
0.203-m
Newtonian + CCD);
   
16.84,
11.7,
0.75'
(J. Xiong,
Xingyuan Observatory, Daocheng, China(remote),
0.203-m
Newtonian + CCD);
   
16.80,
11.7,
1.1'
(O. Miyazaki,
0.32-m
Newtonian);
   
16.65,
12.3,
1.3'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
0.8'
tail in p.a. 315 deg);
   
16.20,
12.3,
0.94'
(K. Hills,
0.5-m
Newtonian + CCD);
   
13.79,
11.9,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
11.20,
12.6,
0.75'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.80,
11.9,
0.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
09.80,
11.8,
1.1'
(O. Miyazaki,
0.32-m
Newtonian);
   
09.67,
12.5,
1.3'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.1'
tail in p.a. 307 deg);
   
09.03,
12.0,
0.8'
(C. Harder,
Kirchheim/ Thüringen Sternwarte,
0.531-m
Newtonian;
2'
tail in p.a. 300 deg);
   
09.01,
12.2,
0.8'
(P. Guzik,
0.326-m
Newtonian);
   
09.00,
11.6,
0.5'
(M. Filipek,
0.4-m
Newtonian);
   
08.80,
11.8,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
08.18,
12.4,
1'
(M. Meyer,
0.254-m
Newtonian);
   
08.17,
12.2,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.3'
tail in p.a. 312 deg);
   
08.15,
12.3,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
08.12,
12.2,
0.5'
(E. Banach,
0.25-m
Newtonian);
   
08.03,
12.0,
0.8'
(C. Harder,
Kirchheim/ Sternwarte,
0.531-m
Newtonian;
2'
tail in p.a. 300 deg);
   
07.69,
12.8,
1.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1.1'
tail in p.a. 312 deg);
   
07.11,
12.3,
0.6'
(T. Karhula,
Virsbo, Sweden,
0.305-m
Newtonian);
   
07.03,
12.3,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.2'
tail in p.a. 305 deg);
   
06.81,
12.6,
1.5'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
2.1'
tail in p.a. 308 deg);
   
06.11,
12.5,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
06.00,
12.4,
1'
(A. Novichonok,
0.031-m
Refractor + CCD;
1'
tail in p.a. 302 deg);
   
05.52,
12.6,
0.6'
(C. Wyatt,
0.4-m
Newtonian);
   
05.27,
12.6,
0.8'
(K. Yoshimoto,
0.356-m
Newtonian + CCD;
1.5'
tail in p.a. 310 deg);
   
05.04,
12.4,
0.5'
(M. Kwinta,
0.3-m
Newtonian);
   
04.92,
12.7,
1.88'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.73,
12.8,
1.3'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 309 deg);
   
04.15,
12.7,
1.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
1.2'
tail in p.a. 308 deg);
   
04.08,
12.3,
0.5'
(E. Banach,
0.25-m
Newtonian);
   
03.10,
12.8,
1.6'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
1.3'
tail in p.a. 314 deg);
feb
29.10,
12.7,
1.3'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.5'
tail in p.a. 304 deg);
   
29.10,
12.2,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.4'
tail in p.a. 314 deg);
   
25.13,
13.0,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.3'
tail in p.a. 303 deg);
   
24.95,
12.3,
0.8'
(J. Xiong,
Daocheng, China(remote,O46),
0.203-m
Newtonian + CCD;
1.2'
tail);
   
21.85,
13.0,
1.1'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 309 deg);
   
20.73,
13.1,
1'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
   
19.00,
12.9,
--
(A. Novichonok,
0.028-m
Refractor + CCD);
C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
06.84,
15.7,
1.1'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.8'
tail in p.a. 279 deg);
feb
22.75,
16.0,
0.6'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 288 deg);
C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
06.03,
17.5,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
C/2023 P1 (Nishimura)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
05.63,
15.4,
2.2'
(T. Lehmann,
Australia (remote),
0.279-m
Newtonian + CCD);
C/2023 S3 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
09.82,
16.1,
0.4'
(A. Pearce,
0.35-m
Schmidt-Cassegrain + CCD);
C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
13.97,
17.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
08.00,
16.4,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2023 V4 (Camarasa-Duszanowicz)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
07.78,
13.5,
3.9'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
14.28,
19.9,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
P/2010 H2 (Vales)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
feb
29.86,
[18.8,
--
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
P/2011 NO1
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
02.93,
14.2,
0.9'
(D. Buczynski,
Tarbatness MPC Code I81,
0.35-m
Schmidt-Cassegrain + CCD);
P/2014 VF40 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
08.27,
19.9,
0.5'
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD;
1.1'
tail in p.a. 262 deg);
P/2023 B1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2024
mar
18.20,
20.2,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);