2P/Encke
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
21.10,
10.6,
2.1'
(E. Banach,
0.25-m
Newtonian);
   
20.47,
9.6,
3'
(C. Hergenrother,
30x125.0
Binoculars);
   
20.20,
10.9,
4.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.77,
10.5,
2.8'
(C. Wyatt,
0.4-m
Newtonian);
   
18.77,
10.8,
2.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
17.79,
10.9,
2'
(O. Miyazaki,
0.32-m
Newtonian);
   
17.06,
9.7,
4'
(P. Guzik,
25x100
Binoculars);
   
16.12,
10.0,
2.2'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
16.11,
10.0,
3.5'
(M. Mašek,
0.4-m
Newtonian);
   
16.09,
10.4,
3'
(J. Powichrowski,
Knyszyn,
0.35-m
Newtonian);
   
16.03,
10.1,
4.3'
(J. Cerny,
0.355-m
Newtonian);
   
15.47,
10.2,
2'
(C. Hergenrother,
30x125.0
Binoculars);
   
15.08,
10.1,
3.5'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
15.07,
11.3,
5.5'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.78,
10.4,
2.3'
(O. Miyazaki,
0.32-m
Newtonian);
   
14.12,
10.4,
5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
13.16,
11.1,
5.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.78,
9.9,
2.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
11.14,
12.0,
--
(G. Pappa,
Trecastagni,Sicily,
0.3-m
Camera lens + CCD);
   
05.09,
11.3,
8.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 74 deg);
aug
31.15,
12.9,
2.4'
(D. Heggie,
ASERO, Trevinca, Spain,
0.094-m
Refractor + CCD);
   
29.76,
12.7,
0.7'
(S. Yoshida,
0.4-m
Newtonian);
   
27.16,
12.2,
4.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.09,
11.1,
4'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
26.96,
13.0,
1.8'
(A. Novichonok,
0.039-m
Refractor + CCD);
   
24.09,
12.3,
7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 70 deg);
   
24.05,
12.5,
--
(G. Pappa,
Piemonte,Italy (remote control),
0.2-m
Newtonian + CCD);
12P/Pons-Brooks
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.83,
13.6,
4.7'
(M. Phillips,
Forthimage Observatory, Edinburgh UK,
0.094-m
Refractor + CCD);
   
16.82,
14.2,
1.2'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
15.92,
13.1,
1.7'
(J. Cerny,
0.355-m
Newtonian);
   
15.85,
14.3,
0.75'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
15.81,
11.5,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
15.80,
15.5,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
14.87,
12.0,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
14.80,
12.8,
7.3'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.02,
11.5,
6'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
13.92,
11.4,
11'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
13.92,
14.5,
1.69'
(K. Hills,
0.5-m
Newtonian + CCD);
   
12.89,
13.1,
4.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.86,
13.1,
5'
(M. Phillips,
Forthimage Observatory, Edinburgh UK,
0.094-m
Refractor + CCD);
   
12.52,
13.1,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
12.15,
16.4,
0.2'
(D. Heggie,
UDRO, Utah,
0.15-m
Refractor + CCD);
   
11.54,
11.9,
6.3'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD);
   
10.95,
11.5,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.93,
13.2,
0.9'
(W. Kutschera,
0.54-m
Newtonian);
   
10.86,
11.7,
9.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.16° tail in p.a. 111 deg);
   
10.85,
11.4,
12'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.15° tail in p.a. 111 deg);
   
09.92,
12.9,
2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
09.86,
11.4,
12'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.21° tail in p.a. 124 deg);
   
09.83,
15.6,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.83,
12.6,
2.9'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
08.92,
11.4,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.85,
11.5,
9.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.19° tail in p.a. 108 deg);
   
07.94,
11.7,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.93,
15.9,
0.38'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
07.86,
11.6,
11'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.17° tail in p.a. 110 deg);
   
06.92,
11.8,
9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.17° tail in p.a. 110 deg);
   
06.90,
14.6,
2'
(M. Phillips,
Forthimage Observatory, Edinburgh UK,
0.25-m
Newtonian + CCD);
   
06.89,
12.1,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.82,
12.6,
8.2'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
06.81,
16.1,
0.44'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
05.91,
11.8,
8.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.15° tail in p.a. 111 deg);
   
05.89,
11.7,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.46,
12.9,
0.9'
(O. Miyazaki,
0.32-m
Newtonian);
   
04.95,
11.9,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
04.93,
14.1,
3'
(M. Phillips,
Forthimage Observatory, Edinburgh UK,
0.25-m
Newtonian + CCD);
   
04.89,
15.7,
0.1'
(D. Heggie,
Edinburgh,
0.13-m
Newtonian + CCD);
   
04.85,
11.5,
9.7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.21° tail in p.a. 119 deg);
   
03.89,
11.6,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.89,
16.2,
1'
(D. Heggie,
Edinburgh,
0.13-m
Newtonian + CCD);
aug
31.16,
12.1,
7.2'
(T. Lehmann,
Utah (remote),
0.106-m
Refractor + CCD);
   
30.85,
13.0,
2.8'
(D. Heggie,
ASERO, Trevinca, Spain,
0.094-m
Refractor + CCD);
   
28.96,
14.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
28.87,
15.6,
0.56'
(S. Shurpakov,
0.15-m
Volosov-Newtonian + CCD);
   
27.85,
11.4,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.04,
11.5,
6'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
26.99,
12.7,
3.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.98,
13.6,
2.2'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
26.91,
11.9,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
26.90,
12.0,
--
(G. Pappa,
Sardegna,Italy,
0.3-m
Camera lens + CCD);
   
26.89,
11.6,
5.5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
26.88,
11.7,
7.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.07° tail in p.a. 117 deg);
   
26.03,
11.7,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
25.82,
12.0,
--
(G. Pappa,
Sardegna,Italy,
0.3-m
Camera lens + CCD);
   
24.97,
11.8,
7'
(T. Lehmann,
Nerpio (remote),
0.25-m
Newtonian + CCD;
0.09° tail in p.a. 114 deg);
   
24.87,
14.1,
2.07'
(K. Hills,
0.5-m
Newtonian + CCD);
   
23.91,
12.7,
4.5'
(D. Heggie,
ASERO, Trevinca, Spain,
0.094-m
Refractor + CCD);
   
23.89,
11.7,
8.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.11° tail in p.a. 118 deg);
   
23.88,
11.5,
11'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.11° tail in p.a. 129 deg);
   
23.85,
11.8,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
23.85,
13.0,
0.7'
(U. Pilz,
0.32-m
Newtonian);
13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
21.35,
20.9,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
   
04.00,
21.0,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
29P/Schwassmann-Wachmann
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
20.18,
12.4,
3.2'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.76,
[14.3,
--
(C. Wyatt,
0.4-m
Newtonian);
   
14.11,
11.5,
4.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
13.18,
12.4,
2.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.14,
11.9,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.12,
11.8,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.16,
12.0,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.11,
11.9,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.15,
12.2,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
04.15,
11.5,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
aug
30.19,
12.7,
1.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
28.23,
12.5,
1.5'
(N. Paul,
Canary Islands Spain,
0.28-m
Schmidt-Cassegrain + CCD);
   
28.22,
12.2,
2.3'
(M. Mašek,
0.067-m
Camera lens + CCD);
   
28.22,
12.6,
2.3'
(M. Mašek,
0.067-m
Camera lens + CCD);
   
28.19,
12.7,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
28.15,
12.8,
2.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.51,
13.2,
--
(A. Guerra,
Vacaville, California,
0.07-m
Refractor + CCD);
   
27.19,
12.7,
0.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.81,
12.3,
1.2'
(K. Yoshimoto,
0.077-m
Refractor + CCD);
32P/Comas Sola
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
20.09,
17.4,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
14.06,
16.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1'
tail in p.a. 251 deg);
   
12.24,
16.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.09,
17.5,
0.2'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.08,
17.0,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.8'
tail in p.a. 253 deg);
   
10.08,
17.4,
0.24'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
08.12,
17.4,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.7'
tail in p.a. 248 deg);
41P/Tuttle-Giacobini-Kresak
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
aug
26.84,
20.5,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
49P/Arend-Rigaux
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
aug
26.84,
20.0,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
62P/Tsuchinshan
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.31,
18.2,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
71P/Clark
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
16.04,
17.8,
0.24'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
15.00,
16.3,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
11.04,
16.4,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.03,
17.4,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
07.16,
18.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
95P/Chiron
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
09.00,
18.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
103P/Hartley
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
21.08,
10.9,
2.6'
(E. Banach,
0.25-m
Newtonian);
   
20.47,
9.9,
5'
(C. Hergenrother,
30x125.0
Binoculars);
   
20.13,
9.5,
9.2'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.72,
10.6,
5'
(C. Wyatt,
0.4-m
Newtonian);
   
18.62,
10.4,
2'
(O. Miyazaki,
0.32-m
Newtonian);
   
18.10,
10.9,
4.7'
(W. Kutschera,
0.25-m
Newtonian);
   
17.33,
9.2,
4'
(M. Goiato,
0.22-m
Newtonian);
   
17.04,
9.2,
10'
(P. Guzik,
25x100
Binoculars);
   
16.99,
10.2,
3.5'
(V. Bespalov,
Moscow region, Ruza district,
0.2-m
Newtonian);
   
16.94,
10.3,
5'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
16.81,
10.5,
3.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
16.63,
10.9,
2.1'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
16.10,
9.6,
5'
(M. Mašek,
0.4-m
Newtonian);
   
16.08,
10.7,
2'
(J. Powichrowski,
Knyszyn,
0.35-m
Newtonian);
   
16.00,
9.4,
6.8'
(J. Cerny,
25x100
Binoculars);
   
15.96,
9.4,
5.6'
(J. Cerny,
0.355-m
Newtonian);
   
15.94,
10.2,
5'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
15.91,
13.6,
0.72'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
15.47,
9.8,
3'
(C. Hergenrother,
30x125.0
Binoculars);
   
15.11,
10.4,
3'
(A. Scholten,
Eerbeek,
0.2-m
Newtonian);
   
14.97,
10.9,
7.3'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.88,
10.3,
5'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
14.77,
11.5,
2.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
14.09,
11.3,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
13.96,
10.1,
5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
13.88,
10.4,
4.5'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian);
   
13.36,
10.1,
8.2'
(K. Yoshimoto,
0.106-m
Refractor + CCD;
10'
tail in p.a. 260 deg);
   
13.12,
9.9,
0.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.75,
10.8,
3'
(O. Miyazaki,
0.32-m
Newtonian);
   
12.07,
11.5,
2.2'
(M. Mašek,
0.2-m
Newtonian);
   
12.04,
11.5,
3.3'
(E. Banach,
Krapkowice,
0.25-m
Newtonian);
   
11.91,
13.4,
0.96'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
11.11,
10.0,
11'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
11.09,
10.8,
5.8'
(W. Kutschera,
0.25-m
Newtonian);
   
11.06,
9.4,
22'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
10.10,
10.4,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.02,
9.6,
18'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
10.00,
10.8,
8.2'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
09.96,
9.8,
13'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.07° tail in p.a. 261 deg);
   
09.92,
10.3,
3.5'
(C. Harder,
Jeersdorf h,
0.298-m
Newtonian);
   
09.89,
14.1,
0.58'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
0.8'
tail in p.a. 240 deg);
   
09.88,
11.3,
3'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
09.86,
10.0,
3'
(V. Bespalov,
Moscow region, Ruza district,
0.2-m
Newtonian);
   
09.05,
9.9,
13'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.3'
tail in p.a. 261 deg);
   
09.03,
11.0,
5.5'
(W. Kutschera,
0.25-m
Newtonian);
   
08.97,
10.3,
2'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
25x100
Binoculars);
   
08.93,
9.7,
3'
(M. Deconinck,
Clamensane France,
0.46-m
Newtonian;
4'
tail);
   
08.90,
10.5,
3.5'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
08.14,
11.8,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.2'
tail in p.a. 258 deg);
   
08.11,
9.6,
17'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 256 deg);
   
07.83,
14.4,
0.48'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
06.97,
9.9,
12'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
2.1'
tail in p.a. 255 deg);
   
06.96,
9.9,
13'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.04° tail in p.a. 256 deg);
   
06.85,
10.7,
3.8'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
05.21,
11.0,
5'
(D. Heggie,
UDRO, Utah,
0.15-m
Refractor + CCD);
   
05.01,
10.2,
10'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.04° tail in p.a. 254 deg);
   
04.86,
12.9,
1.1'
(D. Heggie,
Edinburgh,
0.13-m
Newtonian + CCD);
   
03.98,
12.9,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
02.90,
15.7,
0.29'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
aug
29.74,
12.3,
1.2'
(O. Miyazaki,
0.32-m
Newtonian);
   
29.14,
10.1,
13'
(T. Lehmann,
Nerpio (remote),
0.25-m
Newtonian + CCD;
1.7'
tail in p.a. 247 deg);
   
28.18,
10.2,
9.1'
(M. Mašek,
0.25-m
Schmidt-Cassegrain + CCD);
   
28.18,
12.4,
2.9'
(M. Mašek,
0.25-m
Schmidt-Cassegrain + CCD;
1.7'
tail in p.a. 249 deg);
   
28.07,
10.5,
8'
(P. Guzik,
25x100
Binoculars);
   
28.02,
10.5,
5'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian);
   
27.90,
12.8,
2.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.5'
tail in p.a. 250 deg);
   
27.07,
10.9,
7.7'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.05,
11.0,
5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
27.02,
12.5,
2.9'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.00,
11.5,
3.2'
(E. van Dijk,
0.155-m
Newtonian);
   
26.99,
11.6,
4'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
26.94,
10.6,
11'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.05° tail in p.a. 248 deg);
   
26.91,
12.1,
3'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
26.12,
12.0,
--
(G. Pappa,
Sardegna,Italy,
0.3-m
Camera lens + CCD);
   
26.07,
13.1,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
25.73,
12.5,
1.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.70,
13.0,
1'
(C. Wyatt,
0.4-m
Newtonian);
   
25.12,
10.2,
14'
(T. Lehmann,
Nerpio (remote),
0.25-m
Newtonian + CCD;
1.5'
tail in p.a. 249 deg);
   
25.09,
11.0,
5'
(P. Guzik,
25x100
Binoculars);
   
24.74,
12.6,
0.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
24.44,
14.1,
1.6'
(D. Heggie,
UDRO, Utah,
0.25-m
Hyperboloid astro-camera + CCD;
1.9'
tail in p.a. 250 deg);
   
24.00,
13.6,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
23.98,
10.8,
11'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 248 deg);
   
23.97,
10.6,
14'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.08° tail in p.a. 246 deg);
117P/Helin-Roman-Alu
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
14.98,
14.4,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD;
5.3'
tail in p.a. 238 deg);
   
11.02,
15.4,
1.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.6'
tail in p.a. 242 deg);
   
10.11,
17.1,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.06,
14.9,
2.4'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.1° tail in p.a. 244 deg);
   
10.01,
15.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
7.7'
tail in p.a. 244 deg);
   
10.01,
16.3,
0.29'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
2.7'
tail in p.a. 256 deg);
   
09.01,
15.6,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD;
7.4'
tail in p.a. 243 deg);
   
09.00,
15.6,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.26° tail in p.a. 243 deg);
   
08.03,
15.8,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
9.7'
tail in p.a. 244 deg);
   
04.97,
15.5,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11'
tail in p.a. 240 deg);
aug
24.02,
15.7,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.56° tail in p.a. 243 deg);
126P/IRAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
21.95,
14.4,
0.4'
(T. Karhula,
Virsbo, Sweden,
0.305-m
Newtonian);
   
16.04,
13.7,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.2'
tail in p.a. 231 deg);
   
15.93,
15.6,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
2.6'
tail in p.a. 233 deg);
   
15.89,
14.3,
0.5'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
13.08,
14.7,
0.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.89,
15.9,
0.38'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
3'
tail in p.a. 233 deg);
   
11.19,
15.1,
0.75'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.98,
13.8,
2.6'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.05° tail in p.a. 235 deg);
   
10.19,
15.3,
0.56'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.98,
13.6,
4'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.1° tail in p.a. 228 deg);
   
09.97,
15.3,
1.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
09.91,
14.4,
1'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
1.9'
tail in p.a. 228 deg);
   
09.85,
15.7,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
2'
tail in p.a. 238 deg);
   
08.94,
13.5,
0.8'
(W. Kutschera,
0.54-m
Newtonian);
   
08.09,
14.1,
2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.16° tail in p.a. 228 deg);
   
07.85,
15.9,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
1.5'
tail in p.a. 235 deg);
   
07.00,
14.9,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.4'
tail in p.a. 241 deg);
   
05.05,
14.2,
1.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.12° tail in p.a. 233 deg);
   
05.04,
14.0,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
4.4'
tail in p.a. 231 deg);
   
04.01,
13.8,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
aug
27.93,
13.9,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
27.11,
14.6,
1.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.02,
14.2,
0.7'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
26.97,
14.1,
1.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 234 deg);
   
26.95,
12.2,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
26.92,
14.2,
1'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
1.3'
tail in p.a. 236 deg);
   
25.71,
14.5,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
24.03,
13.9,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD;
4'
tail in p.a. 245 deg);
144P/Kushida
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
12.22,
19.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
170P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
13.24,
17.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.03,
17.5,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
199P/Shoemaker
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
03.87,
16.2,
--
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
219P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
10.90,
17.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
237P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
14.84,
15.3,
0.9'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
10.93,
14.4,
1.32'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.95,
15.4,
0.24'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.89,
13.5,
2.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 217 deg);
   
09.81,
13.5,
2.3'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
07.78,
15.7,
0.43'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
05.82,
13.1,
0.7'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
04.89,
13.1,
3.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 215 deg);
   
04.85,
13.4,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.94,
14.1,
1.32'
(K. Hills,
0.5-m
Newtonian + CCD);
   
02.84,
15.8,
0.29'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
aug
26.90,
13.8,
0.8'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
24.86,
12.7,
2.7'
(M. Paradowski,
Dabrowa,
0.254-m
Schmidt-Newtonian + CCD);
   
24.07,
14.1,
1.5'
(K. Hills,
0.5-m
Newtonian + CCD);
   
23.85,
13.1,
0.8'
(U. Pilz,
0.32-m
Newtonian);
242P/Spahr
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
12.10,
20.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.10,
20.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
276P/Vorobjov
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.10,
18.5,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
287P/Christensen
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
06.11,
18.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.84,
19.0,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
aug
24.10,
19.1,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
309P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
02.82,
20.0,
--
(G. Pappa,
Namibia (remote control),
0.5-m
Prime focus of a reflector + CCD);
310P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
aug
31.18,
20.0,
--
(G. Pappa,
Spain (remote control),
0.5-m
Prime focus of a reflector + CCD);
311P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
17.31,
20.9,
--
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD);
364P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
09.21,
20.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
465P/Hill
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.24,
18.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
466P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
14.13,
18.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
07.14,
19.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2017 K2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
20.15,
12.6,
1.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.72,
13.9,
0.9'
(C. Wyatt,
0.4-m
Newtonian);
   
16.07,
14.3,
0.29'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
15.25,
13.1,
1.13'
(K. Hills,
0.5-m
Newtonian + CCD);
   
14.14,
12.2,
3.7'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.4° tail in p.a. 184 deg);
   
12.79,
11.0,
1.5'
(O. Miyazaki,
0.32-m
Newtonian);
aug
25.73,
13.2,
0.7'
(C. Wyatt,
0.4-m
Newtonian);
C/2019 F1 (ATLAS-Africano)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
16.22,
20.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2019 O3
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.82,
18.3,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
0.6'
tail in p.a. 99 deg);
   
11.87,
17.6,
0.24'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.86,
17.9,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
06.88,
18.4,
0.33'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
aug
30.88,
18.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
23.92,
18.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.78,
16.0,
0.24'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
14.88,
14.3,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
10.88,
13.8,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
8.1'
tail in p.a. 236 deg);
   
10.81,
14.1,
3.1'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.04° tail in p.a. 238 deg);
   
09.86,
13.9,
2.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
9.4'
tail in p.a. 237 deg);
   
09.78,
15.4,
0.53'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
08.86,
13.4,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
6.9'
tail in p.a. 231 deg);
   
07.87,
13.8,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
6.8'
tail in p.a. 233 deg);
   
06.86,
13.9,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
8.5'
tail in p.a. 235 deg);
   
06.85,
14.1,
2.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.14° tail in p.a. 236 deg);
   
06.79,
16.3,
0.67'
(S. Shurpakov,
0.2-m
Schmidt-Newtonian + CCD);
   
05.86,
13.7,
2.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
5.2'
tail in p.a. 235 deg);
   
03.84,
14.0,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD;
6.6'
tail in p.a. 237 deg);
aug
28.88,
14.3,
1.13'
(K. Hills,
0.5-m
Newtonian + CCD);
   
23.88,
13.6,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.2'
tail in p.a. 235 deg);
C/2020 F5 (MASTER)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
16.09,
19.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
07.88,
17.9,
0.1'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
C/2020 K1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.71,
14.0,
0.8'
(C. Wyatt,
0.4-m
Newtonian);
   
16.45,
13.4,
1'
(C. Wyatt,
0.4-m
Newtonian);
   
09.43,
13.4,
1'
(C. Wyatt,
0.4-m
Newtonian);
   
03.75,
13.4,
2.6'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.09° tail in p.a. 117 deg);
aug
25.73,
13.6,
0.8'
(C. Wyatt,
0.4-m
Newtonian);
C/2020 R7 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
09.88,
16.9,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.88,
17.3,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.89,
17.1,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.83,
17.4,
0.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.06° tail in p.a. 145 deg);
aug
30.90,
18.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
23.90,
17.5,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.7'
tail in p.a. 140 deg);
C/2020 U4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
aug
23.95,
18.6,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
20.46,
10.1,
3'
(C. Hergenrother,
30x125.0
Binoculars);
   
20.07,
10.1,
7.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.70,
10.2,
3'
(C. Wyatt,
0.4-m
Newtonian;
18'
tail in p.a. 3 deg);
   
18.63,
10.6,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
17.20,
9.8,
4'
(M. Goiato,
0.22-m
Newtonian);
   
17.05,
10.1,
3'
(P. Guzik,
25x100
Binoculars);
   
17.00,
10.5,
3'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
16.77,
9.9,
2'
(O. Miyazaki,
0.32-m
Newtonian);
   
16.48,
10.9,
6'
(C. Wyatt,
0.4-m
Newtonian;
3.5'
tail in p.a. 335 deg);
   
16.29,
9.8,
4'
(M. Goiato,
0.22-m
Newtonian);
   
16.17,
10.1,
7.14'
(K. Hills,
0.5-m
Newtonian + CCD);
   
16.08,
10.7,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.2'
tail in p.a. 11 deg);
   
16.05,
10.9,
0.96'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
9.8'
tail in p.a. 1 deg);
   
16.03,
9.6,
3'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
16.02,
10.2,
3.1'
(J. Cerny,
0.355-m
Newtonian);
   
15.59,
9.6,
5'
(M. Mattiazzo,
Swan Hill, Victoria,
25x100
Binoculars);
   
15.05,
10.4,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.4'
tail in p.a. 13 deg);
   
14.79,
10.4,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
14.09,
9.4,
16'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.69° tail in p.a. 9 deg);
   
14.05,
9.6,
3.5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
14.04,
9.8,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.6'
tail in p.a. 12 deg);
   
13.10,
9.9,
8.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.76,
10.7,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
11.06,
9.5,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.3'
tail in p.a. 11 deg);
   
10.10,
9.3,
18'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.38° tail in p.a. 11 deg);
   
10.06,
9.8,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 9 deg);
   
10.06,
10.7,
1.5'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
7'
tail in p.a. 9 deg);
   
09.19,
9.9,
7.52'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.06,
10.3,
9.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14'
tail in p.a. 8 deg);
   
08.07,
10.0,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.8'
tail in p.a. 8 deg);
   
05.01,
10.4,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.4'
tail in p.a. 11 deg);
   
03.90,
10.0,
2'
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
aug
29.79,
11.1,
2.5'
(S. Yoshida,
0.4-m
Newtonian);
   
29.77,
10.7,
2.1'
(O. Miyazaki,
0.32-m
Newtonian;
2'
tail in p.a. 340 deg);
   
28.46,
9.8,
2'
(C. Hergenrother,
30x125.0
Binoculars);
   
28.08,
10.0,
2.2'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian);
   
27.76,
10.6,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.14,
9.8,
9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.10,
9.6,
3.5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
27.10,
10.2,
4'
(E. van Dijk,
0.155-m
Newtonian);
   
25.76,
10.5,
2'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.69,
9.9,
3.4'
(C. Wyatt,
0.4-m
Newtonian;
15'
tail in p.a. 7 deg);
   
25.46,
9.9,
2'
(C. Hergenrother,
30x125.0
Binoculars);
   
25.13,
10.2,
2.5'
(C. Labordena,
Castellfort,
0.2-m
Schmidt-Cassegrain);
   
25.08,
9.4,
16'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.54° tail in p.a. 9 deg);
   
24.77,
10.6,
1.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
24.33,
10.5,
2'
(J. de Souza Aguiar,
0.27-m
Newtonian);
   
24.15,
9.9,
2.8'
(W. Kutschera,
0.25-m
Newtonian);
   
24.06,
10.0,
3.1'
(J. Cerny,
25x100
Binoculars);
C/2020 Y2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
11.23,
17.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.10,
16.1,
1.4'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.25,
17.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
14.15,
12.9,
2.3'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.08° tail in p.a. 253 deg);
   
04.16,
13.0,
--
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
aug
25.76,
13.1,
0.7'
(C. Wyatt,
0.4-m
Newtonian);
   
25.16,
13.4,
1.5'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.08° tail in p.a. 256 deg);
C/2021 S4 (Tsuchinshan)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
11.93,
18.0,
0.14'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
C/2021 T4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
10.78,
11.7,
5.3'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.29° tail in p.a. 125 deg);
   
09.44,
11.5,
2.9'
(C. Wyatt,
0.4-m
Newtonian);
   
03.78,
10.9,
8.6'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD;
0.27° tail in p.a. 123 deg);
C/2021 X1 (Maury-Attard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
20.04,
14.6,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.69,
14.6,
1.3'
(C. Wyatt,
0.4-m
Newtonian);
   
16.49,
14.5,
0.5'
(C. Wyatt,
0.4-m
Newtonian);
   
16.14,
15.0,
0.75'
(K. Hills,
0.5-m
Newtonian + CCD);
   
16.01,
15.3,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
9'
tail in p.a. 116 deg);
   
15.98,
14.2,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.6'
tail in p.a. 111 deg);
   
15.03,
14.4,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
10.5'
tail in p.a. 111 deg);
   
14.99,
15.0,
1.1'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.02,
13.9,
2.2'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.2'
tail in p.a. 114 deg);
   
11.96,
15.6,
0.38'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
9'
tail in p.a. 114 deg);
   
11.02,
13.8,
3.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.13° tail in p.a. 114 deg);
   
10.05,
15.4,
0.38'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
9.3'
tail in p.a. 113 deg);
   
10.03,
14.3,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.9'
tail in p.a. 113 deg);
   
09.90,
14.2,
1.2'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
3.4'
tail in p.a. 115 deg);
   
09.15,
15.9,
0.56'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.04,
14.1,
2.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
16.1'
tail in p.a. 114 deg);
   
08.05,
14.1,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
20.5'
tail in p.a. 116 deg);
   
06.93,
14.1,
2.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
6.5'
tail in p.a. 116 deg);
   
06.00,
14.4,
2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.23° tail in p.a. 115 deg);
   
05.93,
14.1,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
8.2'
tail in p.a. 110 deg);
   
04.99,
13.4,
1.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
8.9'
tail in p.a. 113 deg);
aug
28.14,
14.7,
1.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.03,
15.2,
0.3'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
25.69,
14.8,
0.6'
(C. Wyatt,
0.4-m
Newtonian);
   
25.07,
13.8,
1.3'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
24.05,
14.5,
2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.16° tail in p.a. 118 deg);
   
23.99,
14.1,
2.4'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.08° tail in p.a. 117 deg);
C/2022 A2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.68,
12.8,
1.4'
(C. Wyatt,
0.4-m
Newtonian);
   
18.60,
12.2,
1.4'
(O. Miyazaki,
0.32-m
Newtonian);
   
16.84,
11.9,
2.1'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
16.49,
13.0,
1.4'
(Y. Yamaguchi,
0.076-m
Refractor + CCD);
   
16.48,
12.6,
2.5'
(C. Wyatt,
0.4-m
Newtonian);
   
16.23,
12.1,
1'
(M. Goiato,
0.22-m
Newtonian);
   
15.99,
14.8,
0.48'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
15.89,
12.1,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 356 deg);
   
15.88,
11.7,
3.5'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
14.96,
12.0,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.8'
tail in p.a. 358 deg);
   
14.91,
12.6,
5.5'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.00,
12.5,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
12.9'
tail in p.a. 350 deg);
   
13.87,
11.7,
3.5'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian);
   
13.05,
12.5,
3.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.54,
11.7,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
11.00,
11.8,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 355 deg);
   
10.99,
12.6,
3.5'
(W. Kutschera,
0.25-m
Newtonian);
   
10.93,
11.6,
9.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.31° tail in p.a. 354 deg);
   
10.07,
12.8,
2.82'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.99,
11.6,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.7'
tail in p.a. 357 deg);
   
09.98,
14.6,
0.53'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.94,
11.5,
11'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD;
0.25° tail in p.a. 354 deg);
   
09.93,
12.0,
5.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.49° tail in p.a. 355 deg);
   
09.90,
12.6,
7.3'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
09.89,
12.2,
3'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD;
2.6'
tail in p.a. 352 deg);
   
09.46,
12.7,
2.1'
(C. Wyatt,
0.4-m
Newtonian);
   
08.99,
11.9,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.7'
tail in p.a. 354 deg);
   
08.88,
11.4,
3.5'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
08.01,
12.2,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.8'
tail in p.a. 358 deg);
   
07.95,
12.8,
--
(W. Kutschera,
0.54-m
Newtonian);
   
07.82,
14.5,
0.58'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
4.5'
tail in p.a. 343 deg);
   
06.95,
12.3,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14'
tail in p.a. 350 deg);
   
06.89,
12.8,
6.4'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
06.83,
11.8,
3'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
05.96,
11.7,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.5'
tail in p.a. 353 deg);
   
05.83,
12.0,
2.2'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
04.97,
11.9,
6.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.33° tail in p.a. 354 deg);
   
04.90,
12.1,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.7'
tail in p.a. 352 deg);
   
03.96,
13.3,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.87,
12.2,
2'
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
aug
29.75,
12.2,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.88,
11.7,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.9'
tail in p.a. 351 deg);
   
27.05,
12.1,
5.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.95,
12.0,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
14.1'
tail in p.a. 354 deg);
   
26.95,
12.0,
3'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
26.90,
12.1,
3'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
26.06,
12.0,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.7'
tail in p.a. 353 deg);
   
25.72,
12.2,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.67,
13.5,
1.1'
(C. Wyatt,
0.4-m
Newtonian);
   
25.05,
12.5,
2.7'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
24.72,
12.7,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
23.98,
11.9,
4.6'
(P. Dekelver,
0.3-m
Newtonian + CCD;
13.5'
tail in p.a. 351 deg);
   
23.95,
11.9,
6.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.29° tail in p.a. 346 deg);
C/2022 JK5 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.69,
14.0,
1.2'
(C. Wyatt,
0.4-m
Newtonian);
   
16.47,
14.7,
1'
(C. Wyatt,
0.4-m
Newtonian);
   
16.08,
13.9,
1.69'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.08,
14.1,
1.32'
(K. Hills,
0.5-m
Newtonian + CCD);
   
09.93,
14.8,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.45,
13.7,
1.1'
(C. Wyatt,
0.4-m
Newtonian);
   
06.09,
13.9,
1.5'
(K. Hills,
0.5-m
Newtonian + CCD);
aug
25.68,
13.4,
0.9'
(C. Wyatt,
0.4-m
Newtonian);
C/2022 L2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
08.81,
15.6,
0.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 60 deg);
   
06.84,
15.5,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.84,
15.1,
1.1'
(P. Dekelver,
0.3-m
Newtonian + CCD;
1.7'
tail in p.a. 64 deg);
aug
26.84,
15.5,
1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 67 deg);
C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
10.94,
17.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.92,
16.9,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.98,
18.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2022 QE78 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
16.09,
17.9,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
C/2022 S4 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
13.14,
17.4,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
11.25,
17.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
11.14,
17.2,
0.5'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
10.15,
17.2,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.5'
tail in p.a. 339 deg);
C/2022 U1 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.96,
18.4,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
11.15,
19.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2022 U4 (Bok)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
09.84,
17.7,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
09.80,
18.2,
0.34'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
08.84,
18.0,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.85,
17.7,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
aug
23.94,
18.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2022 W3 (Leonard)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
05.88,
16.7,
0.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
04.83,
16.3,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.87,
16.0,
0.5'
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
   
02.87,
17.2,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
aug
23.84,
14.4,
2.2'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
10.76,
16.2,
0.5'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
   
06.82,
15.3,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.82,
15.7,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.77,
16.2,
0.6'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
C/2023 E1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.68,
11.3,
6.8'
(C. Wyatt,
0.4-m
Newtonian);
   
18.59,
12.3,
1.4'
(O. Miyazaki,
0.32-m
Newtonian);
   
16.95,
11.1,
3'
(M. Goiato,
0.22-m
Newtonian);
   
16.83,
12.0,
3'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
16.47,
10.5,
6'
(C. Wyatt,
0.4-m
Newtonian);
   
15.98,
14.9,
0.58'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
15.87,
11.9,
4'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
15.85,
12.5,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD;
3.9'
tail in p.a. 292 deg);
   
15.60,
10.5,
7'
(M. Mattiazzo,
Swan Hill, Victoria,
25x100
Binoculars);
   
14.94,
11.6,
6.4'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
14.88,
9.6,
5'
(U. Pilz,
0.32-m
Newtonian);
   
13.97,
12.1,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD;
11.6'
tail in p.a. 288 deg);
   
13.85,
9.6,
10'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
13.85,
9.6,
22'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
   
13.00,
10.1,
9.96'
(K. Hills,
0.5-m
Newtonian + CCD);
   
12.91,
11.1,
6.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.53,
11.4,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
10.88,
9.4,
19'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.97,
10.6,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
09.96,
13.5,
1.45'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
09.94,
11.0,
9.2'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
09.90,
9.3,
22'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
09.84,
10.3,
4.5'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
09.45,
10.2,
8.6'
(C. Wyatt,
0.4-m
Newtonian);
   
09.01,
9.6,
12.41'
(K. Hills,
0.5-m
Newtonian + CCD);
   
08.97,
10.6,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.95,
9.0,
6'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
25x100
Binoculars);
   
08.89,
9.6,
18'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 286 deg);
   
08.89,
[10.2,
3'
(M. Biely,
Czech Republic, Brno,
20x80
Binoculars);
   
08.84,
10.8,
6.5'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
07.98,
11.9,
3.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.94,
9.0,
6'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
15x70
Binoculars);
   
07.80,
14.3,
0.82'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
06.94,
9.1,
6'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
15x70
Binoculars);
   
06.92,
11.3,
3.8'
(W. Kutschera,
0.25-m
Newtonian);
   
06.91,
11.6,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
06.84,
10.6,
5'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
05.95,
9.0,
6'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
15x70
Binoculars);
   
05.91,
11.6,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.83,
9.8,
5'
(C. Harder,
Jeersdorf f,
0.353-m
Newtonian);
   
05.48,
12.4,
1.4'
(O. Miyazaki,
0.32-m
Newtonian);
   
05.01,
9.6,
10.53'
(K. Hills,
0.5-m
Newtonian + CCD);
   
04.93,
9.2,
21'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.05° tail in p.a. 287 deg);
   
04.88,
11.4,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.91,
10.4,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
03.87,
9.5,
5'
(G. Pappa,
Namibia (remote control),
0.2-m
Newtonian + CCD);
   
03.80,
8.8,
21'
(T. Lehmann,
Hakos (remote),
0.2-m
Newtonian + CCD);
aug
30.87,
14.0,
0.6'
(D. Heggie,
Edinburgh,
0.13-m
Newtonian + CCD);
   
28.01,
9.4,
9.5'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian);
   
28.00,
8.9,
5'
(P. Pérez Corujo,
La Lechuza. Vega de San Mateo. Gran Canaria,
20x80
Binoculars);
   
27.08,
8.8,
8'
(J. Gonzalez Suarez,
15x70
Binoculars);
   
27.03,
9.2,
13.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
26.99,
9.7,
6.2'
(E. van Dijk,
0.155-m
Newtonian);
   
26.94,
9.5,
8.5'
(C. Harder,
Jeersdorf f,
0.196-m
Newtonian);
   
26.92,
8.7,
22'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
26.89,
9.9,
6'
(H. Kiiskinen,
0.4-m
Ritchey-Chretien + CCD);
   
26.82,
9.7,
7'
(V. Bespalov,
Vologda region, Ustyuzhensky district,
15x70
Binoculars);
   
26.12,
9.5,
5'
(G. Pappa,
Sardegna,Italy,
0.3-m
Camera lens + CCD);
   
25.93,
9.2,
7'
(C. Harder,
Jeersdorf h,
0.196-m
Newtonian);
   
25.70,
11.5,
1.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.67,
9.7,
5.6'
(C. Wyatt,
0.4-m
Newtonian);
   
24.70,
11.2,
2.3'
(O. Miyazaki,
0.32-m
Newtonian);
   
24.08,
8.6,
15.42'
(K. Hills,
0.5-m
Newtonian + CCD);
   
24.00,
9.2,
4.5'
(M. Biely,
Czech Republic, Brno,
20x80
Binoculars);
   
23.94,
8.4,
26'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
   
23.93,
11.2,
5.5'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
23.92,
8.3,
32'
(S. Fritsche,
Koeditz,
0.1-m
Refractor + CCD);
   
23.88,
9.9,
9.9'
(D. Heggie,
ASERO, Trevinca, Spain,
0.094-m
Refractor + CCD);
   
23.85,
10.0,
11'
(U. Pilz,
0.32-m
Newtonian);
C/2023 H2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
18.83,
9.3,
7'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
16.81,
12.5,
1.5'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
15.83,
12.5,
1.8'
(C. Harder,
Tewswoos, IHT,
0.531-m
Newtonian);
   
09.81,
15.1,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
08.81,
15.4,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.83,
15.7,
0.7'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.14,
12.9,
3.5'
(M. Mattiazzo,
Great Basin Desert Utah,
0.15-m
Refractor + CCD);
   
04.82,
13.2,
4.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
aug
23.84,
14.2,
2.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
C/2023 P1 (Nishimura)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
21.36,
4.0,
--
(C. Wyatt,
0.25-m
Newtonian);
   
18.80,
2.5,
0.2'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
16.75,
[2.4,
3'
(J. Cerny,
25x100
Binoculars);
   
16.73,
2.5,
1'
(P. Guzik,
25x100
Binoculars);
   
15.75,
2.7,
3'
(J. Cerny,
25x100
Binoculars);
   
15.73,
3.0,
1'
(P. Guzik,
25x100
Binoculars);
   
14.76,
3.2,
6'
(P. Lívanec,
Nosetín,
10x50
Binoculars;
10'
tail);
   
13.80,
3.0,
1'
(B. Granslo,
Røverkollen, Oslo,
0.08-m
Refractor);
   
11.16,
4.1,
3'
(C. Labordena,
Tossal Gros,
11x80
Binoculars;
20'
tail);
   
11.15,
4.5,
--
(G. Pappa,
Trecastagni,Sicily,
0.3-m
Camera lens + CCD);
   
11.14,
3.3,
3'
(J. Cerny,
25x100
Binoculars);
   
11.14,
4.0,
3'
(V. Gonano,
Udine, Italy,
10x50
Binoculars);
   
11.14,
4.0,
2'
(S. Szabo,
Sopron,
15x80
Binoculars);
   
11.13,
3.3,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD);
   
11.12,
3.6,
3'
(M. Reszelski,
Jastrowo near Szamotuly, Poland,
15x70
Binoculars);
   
11.12,
3.3,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
0.56° tail in p.a. 330 deg);
   
11.12,
4.0,
3'
(P. Guzik,
25x100
Binoculars;
0.2° tail in p.a. 330 deg);
   
10.47,
4.0,
--
(B. Young,
Bridge at Home,
8x40
Binoculars);
   
10.16,
4.5,
--
(G. Pappa,
Trecastagni,Sicily,
0.3-m
Camera lens + CCD);
   
10.16,
4.4,
--
(M. Deconinck,
Clamensane France,
7x50
Binoculars;
3.5° tail in p.a. 250 deg);
   
10.15,
4.2,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars);
   
10.14,
4.5,
4'
(O. Guthier,
16x70
Binoculars;
2° tail);
   
10.14,
3.8,
2'
(J. Kac,
Medvedje Brdo,
7x50
Binoculars);
   
10.13,
4.6,
3'
(M. Filipek,
25x100
Binoculars);
   
10.13,
4.3,
17'
(S. Fritsche,
Koeditz,
0.038-m
Refractor + CCD;
4.3° tail in p.a. 322 deg);
   
10.12,
4.0,
2'
(G. Sánta,
Göd,
10x56.0
Binoculars;
1° tail in p.a. 325 deg);
   
10.12,
&4.1,
2'
(M. Kwinta,
15x70
Binoculars);
   
10.12,
3.9,
3'
(M. Reszelski,
Szamotuly, Poland,
15x70
Binoculars;
0.5° tail in p.a. 330 deg);
   
10.11,
3.9,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
0.5° tail in p.a. 325 deg);
   
10.11,
4.2,
3'
(P. Guzik,
25x100
Binoculars;
0.8° tail in p.a. 325 deg);
   
10.03,
4.3,
3.1'
(A. Novichonok,
0.013-m
Refractor + CCD;
7° tail in p.a. 319 deg);
   
09.50,
4.3,
3'
(C. Hergenrother,
10x50
Binoculars);
   
09.19,
4.2,
3'
(V. Gonano,
Udine, Italy,
10x50
Binoculars;
0.5° tail in p.a. 316 deg);
   
09.19,
4.0,
--
(J. Chambó Bris,
Altos de Salomón, Valencia, Spain,
20x60
Binoculars;
40'
tail in p.a. 317 deg);
   
09.16,
6.2,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
23.8'
tail in p.a. 316 deg);
   
09.15,
4.5,
2'
(A. Scholten,
Eerbeek,
8x56.0
Binoculars;
0.5° tail in p.a. 300 deg);
   
09.14,
4.2,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars;
0.7° tail in p.a. 320 deg);
   
09.13,
4.4,
4.5'
(O. Guthier,
16x70
Binoculars;
2.5° tail in p.a. 330 deg);
   
09.12,
[4.7,
2'
(M. Biely,
Czech Republic, Brno,
20x80
Binoculars);
   
09.12,
4.1,
2.1'
(M. Mašek,
20x80
Binoculars);
   
09.12,
&4.4,
2'
(M. Kwinta,
15x70
Binoculars;
20'
tail in p.a. 320 deg);
   
09.11,
4.1,
5'
(M. Reszelski,
Szamotuly, Poland,
15x70
Binoculars;
0.5° tail in p.a. 315 deg);
   
09.10,
4.3,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
4.5° tail in p.a. 315 deg);
   
08.82,
4.8,
5.6'
(K. Yoshimoto,
0.077-m
Refractor + CCD;
3.5° tail in p.a. 307 deg);
   
08.28,
4.7,
4'
(P. Pérez Corujo,
La Lechuza. Vega de San Mateo. Gran Canaria,
20x80
Binoculars;
0.8° tail);
   
08.28,
4.6,
4'
(P. Pérez Corujo,
La Lechuza. Vega de San Mateo. Gran Canaria,
15x70
Binoculars;
0.8° tail);
   
08.23,
,
2.1'
(A. Kammerer,
Karlsruhe, Germany,
0.125-m
Schmidt-Cassegrain;
0.5° tail in p.a. 315 deg);
   
08.16,
5.1,
3'
(W. Vollmann,
10x50
Binoculars);
   
08.16,
4.5,
--
(M. Deconinck,
Clamensane France,
7x50
Binoculars;
1° tail in p.a. 270 deg);
   
08.15,
4.8,
4'
(G. van Buitenen,
Dordrecht,
11x70
Binoculars;
0.8° tail in p.a. 310 deg);
   
08.14,
4.6,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars;
1° tail in p.a. 310 deg);
   
08.13,
5.1,
3'
(P. Lívanec,
Nosetín,
10x50
Binoculars;
1° tail);
   
08.13,
4.5,
2'
(A. Scholten,
Eerbeek,
8x56.0
Binoculars;
0.7° tail in p.a. 300 deg);
   
08.13,
4.6,
28'
(S. Fritsche,
Koeditz,
0.038-m
Refractor + CCD;
7.4° tail in p.a. 309 deg);
   
08.13,
5.0,
8.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
3° tail in p.a. 310 deg);
   
08.12,
4.8,
5'
(O. Guthier,
16x70
Binoculars;
3.2° tail in p.a. 320 deg);
   
08.12,
5.3,
2'
(M. Biely,
Czech Republic, Brno,
20x80
Binoculars;
0.3° tail in p.a. 310 deg);
   
08.11,
&4.8,
2'
(M. Kwinta,
15x70
Binoculars;
20'
tail in p.a. 315 deg);
   
08.10,
5.0,
3'
(M. Paradowski,
Dabrowa, Poland,
7x35.0
Binoculars;
0.5° tail in p.a. 312 deg);
   
08.10,
4.7,
--
(P. Guzik,
Naked eye);
   
08.10,
4.8,
3'
(P. Guzik,
10x50
Binoculars;
1.5° tail in p.a. 315 deg);
   
08.10,
5.0,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
2° tail in p.a. 311 deg);
   
08.09,
4.6,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
3.4° tail in p.a. 311 deg);
   
08.09,
4.5,
6'
(M. Reszelski,
Szamotuly, Poland,
15x70
Binoculars;
0.8° tail in p.a. 310 deg);
   
07.49,
5.1,
4'
(C. Hergenrother,
10x50
Binoculars;
0.5° tail in p.a. 310 deg);
   
07.22,
,
2.2'
(A. Kammerer,
Karlsruhe, Germany,
0.125-m
Schmidt-Cassegrain;
0.5° tail in p.a. 305 deg);
   
07.22,
5.3,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars);
   
07.17,
5.2,
4'
(C. Labordena,
Culla,
11x80
Binoculars;
40'
tail);
   
07.16,
5.4,
3'
(W. Vollmann,
16x70
Binoculars;
1° tail);
   
07.16,
4.5,
6'
(M. Deconinck,
Upaix France,
0.1-m
Refractor;
2° tail in p.a. 270 deg);
   
07.15,
5.2,
3'
(P. De Schrijver,
Beert,
15x80
Binoculars);
   
07.15,
5.0,
--
(M. Deconinck,
Upaix France,
7x50
Binoculars;
3° tail in p.a. 260 deg);
   
07.14,
5.5,
2'
(A. Scholten,
Eerbeek,
8x56.0
Binoculars;
0.5° tail in p.a. 310 deg);
   
07.13,
5.0,
3'
(V. Gonano,
Udine, Italy,
10x50
Binoculars;
1.3° tail in p.a. 306 deg);
   
07.13,
5.3,
11'
(S. Fritsche,
Koeditz,
0.038-m
Refractor + CCD;
2.9° tail in p.a. 305 deg);
   
07.13,
5.1,
1'
(V. Kasten,
15x50
Binoculars);
   
07.12,
5.0,
4'
(O. Guthier,
16x70
Binoculars;
2.03° tail in p.a. 307 deg);
   
07.12,
7.8,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
0.5° tail in p.a. 308 deg);
   
07.12,
5.9,
2'
(M. Biely,
Czech Republic, Brno,
20x80
Binoculars);
   
07.10,
5.2,
3'
(G. Sánta,
Göd,
15x70
Binoculars;
1.6° tail in p.a. 308 deg);
   
07.10,
&5.0,
2'
(M. Kwinta,
15x70
Binoculars;
30'
tail in p.a. 310 deg);
   
07.10,
5.2,
3'
(P. Guzik,
10x50
Binoculars;
1.2° tail in p.a. 310 deg);
   
07.10,
5.0,
--
(P. Guzik,
Naked eye);
   
07.10,
5.3,
3'
(M. Paradowski,
Dabrowa, Poland,
7x35.0
Binoculars;
1.5° tail in p.a. 306 deg);
   
07.09,
5.2,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
3.05° tail in p.a. 305 deg);
   
07.09,
4.8,
5'
(M. Reszelski,
Szamotuly, Poland,
15x70
Binoculars;
1.2° tail in p.a. 305 deg);
   
07.09,
5.3,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
2.8° tail in p.a. 305 deg);
   
07.06,
6.1,
6'
(J. Powichrowski,
Knyszyn,
20x50
Binoculars);
   
07.01,
5.2,
3'
(A. Novichonok,
Chalna fields,
12x60
Binoculars);
   
06.82,
5.0,
--
(K. Yoshimoto,
8x42.0
Binoculars);
   
06.80,
5.6,
4'
(O. Miyazaki,
7x50
Binoculars;
1.2° tail in p.a. 305 deg);
   
06.79,
5.6,
3.3'
(O. Miyazaki,
11x80
Binoculars;
70'
tail in p.a. 305 deg);
   
06.49,
5.3,
5'
(C. Hergenrother,
10x50
Binoculars;
0.5° tail in p.a. 310 deg);
   
06.15,
5.2,
4'
(G. van Buitenen,
Dordrecht,
11x70
Binoculars;
0.8° tail in p.a. 305 deg);
   
06.14,
,
2'
(A. Kammerer,
Karlsruhe, Germany,
0.125-m
Schmidt-Cassegrain;
0.2° tail in p.a. 305 deg);
   
06.14,
5.6,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars);
   
06.13,
5.0,
4'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
40x126.0
Binoculars;
20'
tail in p.a. 270 deg);
   
06.13,
8.4,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
25.9'
tail in p.a. 301 deg);
   
06.13,
5.6,
12'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
3° tail in p.a. 302 deg);
   
06.12,
5.3,
2'
(V. Kasten,
15x50
Binoculars);
   
06.12,
5.2,
3'
(O. Guthier,
16x70
Binoculars;
1.05° tail in p.a. 316 deg);
   
06.11,
4.9,
2.5'
(C. Harder,
Jeersdorf f,
16x70
Binoculars;
15'
tail in p.a. 300 deg);
   
06.11,
5.3,
3'
(J. Cerny,
25x100
Binoculars;
1.4° tail in p.a. 297 deg);
   
06.10,
5.5,
3'
(G. Sánta,
Göd,
10x56.0
Binoculars;
1.1° tail in p.a. 303 deg);
   
06.10,
5.2,
3'
(J. Cerny,
8x40
Binoculars);
   
06.10,
5.3,
3'
(P. Guzik,
10x50
Binoculars;
1.5° tail in p.a. 310 deg);
   
06.10,
&5.5,
2'
(M. Kwinta,
15x70
Binoculars;
30'
tail in p.a. 310 deg);
   
06.09,
5.1,
6'
(M. Reszelski,
Szamotuly, Poland,
25x100
Binoculars;
1° tail in p.a. 300 deg);
   
06.09,
5.5,
10'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
2.08° tail in p.a. 305 deg);
   
05.82,
5.4,
--
(K. Yoshimoto,
8x42.0
Binoculars);
   
05.82,
5.5,
5'
(K. Yoshimoto,
0.077-m
Refractor + CCD;
3° tail in p.a. 300 deg);
   
05.53,
5.6,
--
(A. Guerra,
Vacaville, California,
0.07-m
Refractor + CCD);
   
05.48,
5.6,
3'
(C. Hergenrother,
10x50
Binoculars);
   
05.28,
5.2,
4'
(P. Pérez Corujo,
La Lechuza. Vega de San Mateo. Gran Canaria,
20x80
Binoculars;
0.5° tail);
   
05.17,
5.5,
3'
(J. Gonzalez Suarez,
Alto de Sedano, 1050 m, Burgos, Spain,
10x50
Binoculars;
0.8° tail in p.a. 300 deg);
   
05.16,
6.0,
3'
(W. Vollmann,
16x70
Binoculars;
0.5° tail);
   
05.16,
5.7,
3'
(J. Gonzalez Suarez,
20x80
Binoculars;
0.8° tail in p.a. 300 deg);
   
05.14,
5.6,
4'
(G. van Buitenen,
Dordrecht,
11x70
Binoculars;
0.5° tail in p.a. 305 deg);
   
05.14,
5.4,
--
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
7x50
Binoculars);
   
05.13,
5.4,
4'
(V. Gonano,
Udine, Italy,
10x50
Binoculars;
25'
tail in p.a. 305 deg);
   
05.13,
,
1.8'
(A. Kammerer,
Karlsruhe, Germany,
0.125-m
Schmidt-Cassegrain;
0.2° tail in p.a. 305 deg);
   
05.13,
5.5,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars);
   
05.12,
5.5,
5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
39x126.0
Binoculars;
25'
tail in p.a. 250 deg);
   
05.12,
8.5,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
23'
tail in p.a. 306 deg);
   
05.12,
5.9,
8.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
2.1° tail in p.a. 304 deg);
   
05.11,
5.8,
2'
(B. Granslo,
Oslo,
10x42.0
Binoculars);
   
05.11,
5.6,
3'
(S. Szabo,
Sopron,
15x80
Binoculars);
   
05.11,
5.4,
3'
(O. Guthier,
16x70
Binoculars);
   
05.10,
5.5,
2.5'
(G. Sánta,
Göd,
15x70
Binoculars;
1° tail in p.a. 300 deg);
   
05.10,
5.6,
3'
(J. Cerny,
25x100
Binoculars;
0.6° tail in p.a. 295 deg);
   
05.10,
&5.8,
2'
(M. Kwinta,
15x70
Binoculars);
   
05.09,
5.6,
3'
(P. Guzik,
10x50
Binoculars;
0.8° tail in p.a. 300 deg);
   
05.09,
5.6,
5'
(M. Reszelski,
Szamotuly, Poland,
15x70
Binoculars);
   
05.08,
5.9,
6.7'
(M. Paradowski,
Dabrowa, Poland,
0.034-m
Camera lens + CCD;
1.8° tail in p.a. 305 deg);
   
04.24,
6.3,
5.5'
(M. Mašek,
0.067-m
Camera lens + CCD;
2.7° tail in p.a. 279 deg);
   
04.24,
7.7,
4.1'
(M. Mašek,
0.067-m
Camera lens + CCD;
2.8° tail in p.a. 285 deg);
   
04.15,
6.3,
--
(A. Kammerer,
Karlsruhe, Germany,
9x63.0
Binoculars);
   
04.12,
7.0,
11'
(P. Dekelver,
0.3-m
Newtonian + CCD;
25.7'
tail in p.a. 298 deg);
   
04.08,
6.1,
3'
(P. Guzik,
10x50
Binoculars;
1° tail in p.a. 300 deg);
   
04.01,
6.0,
3'
(A. Novichonok,
Chalna fields,
10x50
Binoculars);
   
03.82,
5.8,
4'
(K. Yoshimoto,
20x100
Binoculars;
40'
tail in p.a. 300 deg);
   
03.48,
6.0,
4'
(C. Hergenrother,
10x50
Binoculars);
   
03.16,
6.3,
4'
(V. Gonano,
Udine, Italy,
10x50
Binoculars);
   
02.79,
6.5,
2.4'
(O. Miyazaki,
11x80
Binoculars);
   
02.09,
6.3,
4'
(O. Guthier,
0.105-m
Refractor);
   
01.80,
7.4,
2.6'
(O. Miyazaki,
11x80
Binoculars);
   
01.16,
7.0,
3'
(V. Gonano,
Udine, Italy,
10x50
Binoculars);
aug
31.17,
6.4,
3'
(J. Gonzalez Suarez,
Villacintor, 930 m, Leon, Spain,
20x80
Binoculars;
0.4° tail in p.a. 290 deg);
   
31.16,
6.6,
4'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain;
0.7° tail in p.a. 290 deg);
   
31.14,
7.0,
12.8'
(P. Dekelver,
0.3-m
Newtonian + CCD;
22.6'
tail in p.a. 289 deg);
   
31.11,
6.9,
4'
(E. van Dijk,
15x80
Binoculars);
   
30.18,
7.2,
5.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
30.12,
7.0,
5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.126-m
Refractor;
10'
tail in p.a. 270 deg);
   
30.10,
7.1,
5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
25x126.0
Binoculars);
   
30.05,
7.2,
--
(N. Novikov,
Russia, d. Enaberdino,
0.153-m
Newtonian);
   
29.99,
7.1,
3'
(A. Novichonok,
Chalna fields,
0.114-m
Newtonian);
   
29.79,
7.4,
2.9'
(O. Miyazaki,
11x80
Binoculars);
   
29.77,
7.2,
5'
(S. Yoshida,
0.4-m
Newtonian);
   
29.09,
7.2,
4'
(C. Harder,
Jeersdorf f,
0.252-m
Newtonian);
   
28.81,
7.5,
5.8'
(K. Yoshimoto,
0.072-m
Camera lens + CCD;
2.5° tail in p.a. 287 deg);
   
28.48,
7.4,
5'
(C. Hergenrother,
10x50
Binoculars);
   
28.36,
7.8,
1'
(A. Amorim,
0.09-m
Refractor);
   
28.26,
7.2,
5'
(P. Pérez Corujo,
La Lechuza. Vega de San Mateo. Gran Canaria,
20x80
Binoculars);
   
28.22,
8.9,
5.5'
(M. Mašek,
0.067-m
Camera lens + CCD;
0.6° tail in p.a. 284 deg);
   
28.22,
7.6,
6.9'
(M. Mašek,
0.067-m
Camera lens + CCD;
0.8° tail in p.a. 282 deg);
   
28.18,
7.1,
5.5'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
28.15,
7.2,
5'
(C. Labordena,
La Serra d Engarcera,
11x80
Binoculars);
   
28.12,
8.9,
7.3'
(P. Dekelver,
0.3-m
Newtonian + CCD;
27.8'
tail in p.a. 284 deg);
   
28.09,
7.6,
4'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian;
3'
tail in p.a. 295 deg);
   
28.09,
7.6,
4'
(C. Harder,
Jeersdorf f,
0.298-m
Newtonian;
3'
tail in p.a. 295 deg);
   
28.08,
7.4,
3'
(P. Guzik,
25x100
Binoculars);
   
27.51,
7.7,
--
(A. Guerra,
Vacaville, California,
0.07-m
Refractor + CCD);
   
27.42,
7.5,
1.8'
(D. Zubenel,
Hoyt, Kansas, USA,
0.152-m
Newtonian);
   
27.18,
7.9,
6.2'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
27.17,
7.3,
5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain;
0.4° tail in p.a. 280 deg);
   
27.10,
7.2,
6'
(E. van Dijk,
15x80
Binoculars);
   
27.09,
7.3,
4'
(E. van Dijk,
0.155-m
Newtonian);
   
26.99,
7.4,
3'
(V. Bespalov,
Vologda region, Ustyuzhensky district,
15x70
Binoculars);
   
26.99,
7.8,
3.1'
(A. Novichonok,
0.038-m
Refractor + CCD;
26'
tail in p.a. 282 deg);
   
26.81,
7.5,
5.6'
(K. Yoshimoto,
0.077-m
Refractor + CCD;
1.5° tail in p.a. 280 deg);
   
26.81,
8.3,
5.6'
(K. Yoshimoto,
0.077-m
Refractor + CCD;
1.2° tail in p.a. 280 deg);
   
26.81,
8.3,
2.5'
(K. Yoshimoto,
0.077-m
Refractor + CCD;
1.2° tail in p.a. 280 deg);
   
26.13,
7.2,
3.2'
(M. Collins,
Everton,
0.254-m
Schmidt-Cassegrain);
   
26.13,
7.6,
4'
(V. Gonano,
Udine, Italy,
10x50
Binoculars);
   
26.12,
7.8,
8'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.126-m
Refractor;
1'
tail in p.a. 270 deg);
   
26.12,
7.8,
--
(G. Pappa,
Sardegna,Italy,
0.3-m
Camera lens + CCD);
   
26.12,
7.6,
3'
(G. van Buitenen,
Dordrecht, NL (G06),
11x70
Binoculars);
   
26.11,
7.8,
6'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
25x126.0
Binoculars);
   
26.09,
7.8,
5.5'
(M. Jaeger,
Martinsberg Austria,
0.07-m
Camera lens + CCD;
75° tail in p.a. 278 deg);
   
25.79,
8.6,
2.6'
(C. Wyatt,
0.4-m
Newtonian);
   
25.78,
8.7,
2.4'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.49,
7.8,
3'
(C. Hergenrother,
30x125.0
Binoculars);
   
25.49,
7.5,
5'
(C. Hergenrother,
10x50
Binoculars);
   
25.15,
7.9,
5'
(C. Labordena,
Castellfort,
0.2-m
Schmidt-Cassegrain;
15'
tail);
   
25.14,
7.8,
5'
(C. Labordena,
Castellfort,
11x80
Binoculars);
   
25.10,
&8.1,
2'
(M. Kwinta,
0.3-m
Newtonian);
   
25.08,
7.8,
4'
(P. Guzik,
25x100
Binoculars);
   
24.78,
8.4,
2.5'
(O. Miyazaki,
0.32-m
Newtonian);
   
24.36,
8.0,
5'
(W. Souza,
0.15-m
Newtonian);
   
24.35,
8.0,
4'
(J. de Souza Aguiar,
25x100
Binoculars);
   
24.17,
8.4,
6.2'
(J. Chambó Bris,
Valles, Valencia, Spain,
0.2-m
Newtonian + CCD;
50'
tail in p.a. 279 deg);
   
24.11,
8.0,
3'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
0.126-m
Refractor;
1.5'
tail in p.a. 270 deg);
   
24.11,
8.4,
6.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.96° tail in p.a. 279 deg);
   
24.10,
8.0,
2.5'
(M. Deconinck,
Artignosc-sur-Verdon, Provence, France,
25x126.0
Binoculars);
   
24.09,
8.2,
4.9'
(J. Cerny,
25x100
Binoculars);
C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
14.14,
19.8,
1'
(J. Maikner,
Comet Hunter Observatory 2,
0.305-m
Hyperboloid astro-camera + CCD;
5" tail in p.a. 215 deg);
P/2010 YK3
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
10.94,
15.7,
1.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD);
P/2023 M4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2023
sep
15.83,
16.6,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
13.95,
16.3,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
12.96,
17.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
10.97,
16.4,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
09.95,
16.4,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
09.91,
16.7,
0.29'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
08.95,
16.6,
0.6'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
07.96,
16.6,
0.4'
(P. Dekelver,
0.3-m
Newtonian + CCD);
   
05.97,
17.0,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
aug
27.01,
16.4,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
24.06,
16.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);