3I/ATLAS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.59,
17.1,
0.25'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
27.59,
17.5,
0.2'
(J. Xiong,
Daocheng, China(remote,O40),
0.252-m
Newtonian + CCD);
   
26.93,
17.0,
0.1'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
26.54,
17.0,
0.2'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
26.48,
16.9,
0.25'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.20,
17.0,
0.2'
(M. Olason,
Arizona,
0.091-m
Refractor + CCD);
   
25.94,
17.7,
--
(J. Ryske,
Y71 Makroskooppi, Fregenal de la Sierra, Spain,
0.3-m
Ritchey-Chretien + CCD);
   
25.91,
17.0,
--
(N. Quinn,
Steyning, West Sussex, UK,
0.28-m
Schmidt-Cassegrain + CCD);
   
25.91,
16.7,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
25.51,
17.2,
0.2'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
25.50,
17.2,
0.25'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.94,
17.9,
0.13'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
23.96,
17.1,
0.18'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
22.51,
17.1,
--
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
22.09,
17.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
21.96,
17.3,
0.17'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
18.97,
17.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
18.92,
17.1,
0.27'
(J. Zakrajšek,
Crni Vrh Observatory (MPC 106),
0.6-m
Prime focus of a reflector + CCD);
   
18.08,
17.1,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
16.90,
18.2,
0.15'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
16.08,
17.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
15.97,
17.5,
0.17'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
15.49,
16.9,
--
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
14.97,
16.7,
--
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD);
   
14.90,
16.8,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
14.69,
17.8,
0.15'
(J. Xiong,
Daocheng, China(remote,O40),
0.252-m
Newtonian + CCD);
   
13.94,
18.2,
0.4'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD);
   
10.67,
17.3,
0.2'
(J. Xiong,
Daocheng, China(remote,O40),
0.252-m
Newtonian + CCD);
   
09.64,
17.8,
0.2'
(J. Xiong,
Daocheng, China(remote,O40),
0.252-m
Newtonian + CCD);
   
06.18,
17.6,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
06.01,
18.6,
--
(J. Ryske,
Y71 Makroskooppi, Fregenal de la Sierra, Spain,
0.3-m
Ritchey-Chretien + CCD);
   
05.16,
17.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
04.15,
17.2,
0.2'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
04.15,
17.8,
0.2'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
04.02,
18.2,
0.2'
(T. Lehmann,
Hakos (remote),
0.45-m
Newtonian + CCD);
   
03.97,
18.6,
--
(J. Ryske,
Y71 Makroskooppi, Fregenal de la Sierra, Spain,
0.3-m
Ritchey-Chretien + CCD);
   
03.91,
17.5,
0.2'
(J. Zakrajšek,
Crni Vrh Observatory (MPC 106),
0.6-m
Prime focus of a reflector + CCD);
   
03.58,
17.2,
--
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD);
   
03.13,
17.5,
0.2'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
03.13,
18.1,
0.2'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
03.11,
17.6,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
03.06,
17.6,
--
(K. Yoshimoto,
0.25-m
Newtonian + CCD);
   
03.01,
18.2,
--
(J. Ryske,
Y71 Makroskooppi, Fregenal de la Sierra, Spain,
0.3-m
Ritchey-Chretien + CCD);
   
03.01,
18.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.01,
17.1,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
02.98,
18.3,
0.2'
(T. Lehmann,
Hakos (remote),
0.45-m
Newtonian + CCD);
   
02.98,
17.4,
0.2'
(M. Mašek,
CTA-N La Palma,
0.25-m
Schmidt-Cassegrain + CCD);
   
02.28,
17.7,
0.4'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
13P/Olbers
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
18.55,
16.6,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
47P/Ashbrook-Jackson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.64,
16.8,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
1.6'
tail in p.a. 250 deg);
   
26.66,
16.5,
0.49'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
0.9'
tail in p.a. 249 deg);
   
25.63,
16.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
1.6'
tail in p.a. 249 deg);
   
24.64,
16.9,
0.46'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 253 deg);
   
22.10,
17.1,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.97,
17.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
18.65,
16.3,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
0.6'
tail in p.a. 257 deg);
   
05.03,
17.6,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.7'
tail in p.a. 250 deg);
   
03.11,
17.3,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
48P/Johnson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.83,
16.6,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.83,
16.0,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
0.8'
tail in p.a. 245 deg);
   
25.83,
16.0,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.84,
16.1,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
0.4'
tail in p.a. 68 deg);
   
06.41,
15.4,
0.6'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
06.41,
15.9,
0.6'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
65P/Gunn
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.49,
15.3,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.51,
15.8,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.51,
15.3,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.49,
16.8,
0.25'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
21.97,
15.3,
0.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
19.50,
16.4,
0.2'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
18.53,
15.6,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
12.78,
16.5,
0.1'
(G. Pappa,
Namibia (remote control),
0.106-m
Refractor + CCD);
   
06.15,
14.5,
1.5'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD);
78P/Gehrels
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.92,
18.0,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
19.10,
17.9,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.13,
18.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
93P/Lovas
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
19.12,
20.6,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
16.29,
19.6,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
145P/Shoemaker-Levy
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.32,
18.9,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
21.34,
19.2,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
19.19,
20.1,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
188P/LINEAR-Mueller
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.26,
19.2,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
217P/LINEAR
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.20,
14.0,
0.6'
(A. Pearce,
Skygems Namibia Remote Observatory,
0.45-m
Schmidt-Cassegrain + CCD;
0.5'
tail in p.a. 263 deg);
   
22.20,
13.5,
0.7'
(A. Pearce,
Skygems Namibia Remote Observatory,
0.45-m
Schmidt-Cassegrain + CCD;
0.5'
tail in p.a. 247 deg);
   
21.20,
13.7,
0.6'
(A. Pearce,
Skygems Namibia Remote Observatory,
0.45-m
Schmidt-Cassegrain + CCD;
0.7'
tail in p.a. 255 deg);
   
18.20,
13.3,
0.7'
(A. Pearce,
Skygems Namibia Remote Observatory,
0.45-m
Schmidt-Cassegrain + CCD;
1'
tail in p.a. 263 deg);
   
17.20,
12.8,
0.7'
(A. Pearce,
Skygems Namibia Remote Observatory,
0.45-m
Schmidt-Cassegrain + CCD;
0.5'
tail in p.a. 263 deg);
   
06.44,
13.3,
0.9'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
   
06.44,
13.3,
0.9'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD);
240P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.80,
14.6,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
3.3'
tail in p.a. 242 deg);
   
26.80,
14.4,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
3.8'
tail in p.a. 244 deg);
   
25.80,
14.0,
1'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
3.3'
tail in p.a. 243 deg);
   
24.80,
14.4,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
3.4'
tail in p.a. 242 deg);
   
22.14,
14.5,
0.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
12.40,
14.7,
0.4'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD;
0.6'
tail in p.a. 245 deg);
   
12.40,
15.2,
0.4'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD;
1.1'
tail in p.a. 249 deg);
261P/Larson
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
19.07,
18.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
18.18,
18.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
313P/Gibbs
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
21.28,
21.1,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
362P
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
26.63,
18.3,
0.3'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
0.4'
tail in p.a. 250 deg);
   
22.94,
19.2,
0.4'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
19.14,
18.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.02,
18.8,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
441P/PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
16.20,
18.9,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
486P/Leonard
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
03.30,
18.7,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
jun
30.13,
18.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
491P/Spacewatch-PANSTARRS
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
03.22,
18.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
502P/NEAT
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.93,
19.6,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
22.62,
19.2,
0.2'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
19.09,
19.1,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
03.20,
18.9,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
jun
29.99,
19.4,
0.27'
(J. Zakrajšek,
Crni Vrh Observatory (MPC 106),
0.6-m
Prime focus of a reflector + CCD);
C/2014 UN271 (Bernardinelli-Bernstein)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.78,
15.0,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.78,
14.5,
0.8'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.78,
15.0,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.79,
14.8,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
C/2019 T4 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.99,
19.2,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2020 V2 (ZTF)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.61,
16.8,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.62,
16.8,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.61,
16.3,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.58,
16.8,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.52,
16.4,
0.4'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
18.63,
15.5,
0.7'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
C/2021 G2 (Atlas)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.56,
14.8,
0.9'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.57,
14.5,
0.9'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.47,
14.7,
0.9'
(A. Pearce,
Nedlands, Perth,
0.05-m
Refractor + CCD);
   
25.91,
14.8,
--
(F. Fremont,
Niort, France,
0.073-m
Refractor + CCD);
   
25.60,
14.2,
1'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.46,
14.8,
0.9'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.46,
14.6,
0.9'
(A. Pearce,
Nedlands, Perth,
0.05-m
Refractor + CCD);
   
24.46,
14.3,
0.9'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
22.85,
14.7,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
7.6'
tail in p.a. 232 deg);
   
21.93,
14.3,
0.9'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.90,
12.0,
2'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
20.84,
14.7,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
20.51,
13.1,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
19.98,
14.6,
0.94'
(K. Hills,
0.5-m
Newtonian + CCD);
   
19.46,
14.4,
0.7'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
19.46,
13.8,
1'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
19.46,
14.4,
0.9'
(A. Pearce,
Nedlands, Perth,
0.05-m
Refractor + CCD);
   
18.61,
13.8,
0.9'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
17.91,
14.2,
1.1'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
16.90,
11.8,
2'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
16.51,
14.4,
0.7'
(A. Pearce,
Nedlands, Perth,
0.05-m
Refractor + CCD);
   
10.53,
14.6,
0.7'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
03.90,
13.6,
1.3'
(E. Bryssinck,
0.4-m
Newtonian + CCD);
   
02.98,
14.5,
0.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
01.95,
14.1,
1.3'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD;
0.14° tail in p.a. 233 deg);
   
01.92,
14.1,
1.4'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.2° tail in p.a. 234 deg);
jun
30.94,
14.0,
0.3'
(F. Fremont,
Niort,
0.073-m
Refractor + CCD;
2.2'
tail in p.a. 225 deg);
   
30.92,
14.1,
1.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.22° tail in p.a. 233 deg);
   
30.90,
14.0,
1.4'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD;
0.2° tail in p.a. 234 deg);
   
30.90,
14.3,
0.5'
(M. Kalina,
Prague - Řepy (MPC XXX),
0.2-m
Ritchey-Chretien + CCD);
   
29.92,
14.1,
1.3'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.19° tail in p.a. 231 deg);
   
29.90,
14.1,
1.9'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.18° tail in p.a. 235 deg);
   
29.89,
14.8,
1.8'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.89,
13.5,
2.2'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.87,
14.1,
1.4'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD;
0.23° tail in p.a. 233 deg);
   
29.50,
14.0,
1.8'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
C/2021 S3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
24.11,
18.6,
2'
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
22.95,
18.7,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
05.02,
19.3,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2022 E2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.95,
15.8,
0.9'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
22.07,
14.3,
0.8'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.88,
15.9,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
05.00,
15.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.13-m
Refractor + CCD);
   
05.00,
15.7,
1.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
03.09,
15.1,
0.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
jun
30.02,
14.7,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.09° tail in p.a. 65 deg);
   
29.99,
14.6,
1.4'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.07° tail in p.a. 67 deg);
C/2022 N2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.86,
15.3,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.87,
14.9,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.87,
15.0,
0.6'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD;
1.9'
tail in p.a. 251 deg);
   
25.31,
15.3,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
22.11,
15.0,
0.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
21.13,
12.3,
2.5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
03.76,
13.9,
0.9'
(K. Harikae,
0.15-m
Newtonian + CCD);
   
03.13,
15.6,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
03.04,
15.0,
0.7'
(J. Zakrajšek,
Crni Vrh Observatory (MPC 106),
0.6-m
Prime focus of a reflector + CCD);
jun
30.76,
14.0,
0.9'
(K. Harikae,
0.15-m
Newtonian + CCD);
C/2023 A3 (Tsuchinshan-ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.97,
16.3,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
23.13,
17.0,
1'
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD;
1.5" tail in p.a. 140 deg);
   
23.00,
16.9,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
22.89,
16.9,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
21.99,
16.0,
0.6'
(M. Mašek,
CTA-N La Palma,
0.25-m
Schmidt-Cassegrain + CCD);
   
21.99,
16.1,
0.6'
(M. Mašek,
CTA-N La Palma,
0.25-m
Schmidt-Cassegrain + CCD);
   
21.98,
17.0,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.86,
17.2,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
18.90,
17.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
14.94,
16.9,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
13.98,
15.6,
1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 121 deg);
   
12.50,
16.1,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
0.8'
tail in p.a. 135 deg);
   
11.97,
16.2,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
06.18,
16.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
04.97,
16.5,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
03.88,
16.9,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
03.00,
15.5,
1.13'
(K. Hills,
0.5-m
Newtonian + CCD);
   
02.92,
14.5,
1'
(M. Paradowski,
0.15-m
Newtonian + CCD);
   
02.91,
14.6,
1'
(M. Paradowski,
0.15-m
Newtonian + CCD);
   
02.87,
17.0,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
jun
30.97,
14.0,
3.2'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.12° tail in p.a. 127 deg);
   
30.91,
15.1,
2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 143 deg);
   
29.56,
16.0,
0.4'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
C/2023 C2 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.97,
16.0,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
22.05,
16.2,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.87,
16.2,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
16.10,
15.1,
1.3'
(U. Pilz,
Leipzig,
0.035-m
Refractor + CCD);
   
05.30,
15.9,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.13-m
Refractor + CCD;
1.7'
tail in p.a. 225 deg);
   
04.98,
15.6,
1.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 241 deg);
   
03.05,
16.2,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
01.03,
15.2,
1.4'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1.4'
tail in p.a. 231 deg);
   
01.00,
15.2,
1.1'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.05° tail in p.a. 230 deg);
jun
30.10,
15.0,
0.6'
(W. Kutschera,
0.508-m
Newtonian);
   
29.98,
15.5,
0.15'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
C/2023 F3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
09.44,
17.8,
0.2'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
C/2023 H1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
06.22,
17.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
03.99,
16.5,
0.8'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD);
C/2023 H5 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.96,
17.4,
0.6'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.6'
tail in p.a. 183 deg);
   
21.91,
17.0,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.89,
17.4,
0.5'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.2'
tail in p.a. 182 deg);
   
07.92,
17.5,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.00,
17.1,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.4'
tail in p.a. 174 deg);
   
01.95,
16.6,
0.5'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
2.3'
tail in p.a. 179 deg);
jun
29.93,
16.5,
0.8'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1.4'
tail in p.a. 177 deg);
C/2023 R1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.64,
16.0,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.65,
16.0,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.00,
15.6,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
25.65,
15.7,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.03,
15.4,
0.44'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
24.03,
15.4,
0.44'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
22.91,
16.1,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.3'
tail in p.a. 106 deg);
   
22.06,
15.6,
0.6'
(M. Mašek,
CTA-N La Palma,
0.25-m
Schmidt-Cassegrain + CCD;
0.6'
tail in p.a. 94 deg);
   
22.06,
15.3,
0.6'
(M. Mašek,
CTA-N La Palma,
0.25-m
Schmidt-Cassegrain + CCD;
0.5'
tail in p.a. 92 deg);
   
22.02,
16.2,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
20.86,
16.6,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
17.98,
16.3,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
14.05,
15.6,
0.8'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD);
   
08.07,
16.4,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
04.98,
16.3,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
02.98,
16.6,
0.19'
(S. Shurpakov,
0.41-m
Newtonian + CCD);
   
02.02,
15.9,
0.7'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.4'
tail in p.a. 88 deg);
   
01.97,
15.8,
0.9'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1'
tail in p.a. 91 deg);
jun
30.95,
15.7,
1.2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.9'
tail in p.a. 91 deg);
   
29.97,
15.7,
0.7'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.97,
16.6,
0.7'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.60,
15.7,
0.5'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
C/2023 T3 (Fuls)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
26.55,
16.7,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.59,
16.6,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.55,
16.8,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.45,
16.7,
0.3'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
19.53,
16.4,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
19.45,
16.7,
0.35'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
18.59,
15.9,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
14.45,
16.9,
0.25'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
09.44,
16.9,
0.2'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
jun
29.92,
17.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
29.83,
16.3,
0.8'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD;
0.06° tail in p.a. 265 deg);
C/2023 X2 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.97,
19.1,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
C/2024 B1 (Lemmon)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
23.17,
18.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
19.99,
18.7,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2024 E1 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
27.80,
14.0,
0.4'
(D. Sidorko,
Korenovsk, Russia,
0.406-m
Newtonian);
   
25.95,
14.9,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
25.93,
14.9,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
25.91,
15.7,
0.32'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
34" tail in p.a. 85 deg);
   
24.93,
15.7,
0.28'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
23" tail in p.a. 87 deg);
   
24.60,
13.8,
0.6'
(O. Miyazaki,
0.32-m
Newtonian);
   
23.92,
14.9,
0.9'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
23.92,
14.3,
0.9'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD);
   
23.77,
15.3,
0.5'
(A. Baskikh,
Новосибирск,
0.05-m
Refractor + CCD);
   
23.61,
13.6,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
22.87,
16.0,
0.7'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.5'
tail in p.a. 118 deg);
   
22.61,
13.1,
0.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
21.94,
16.1,
0.28'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
21" tail in p.a. 122 deg);
   
21.75,
15.3,
0.5'
(A. Baskikh,
Новосибирск,
0.05-m
Refractor + CCD);
   
21.00,
14.3,
0.4'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
20.87,
16.4,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 131 deg);
   
20.52,
13.0,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
19.06,
16.2,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
16.97,
16.0,
0.23'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
22" tail in p.a. 130 deg);
   
16.94,
14.2,
0.4'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
16.88,
14.6,
0.8'
(E. Bryssinck,
0.4-m
Newtonian + CCD);
   
15.95,
15.9,
0.27'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
24" tail in p.a. 125 deg);
   
14.94,
15.7,
0.28'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
20" tail in p.a. 141 deg);
   
14.93,
15.9,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
14.90,
15.1,
0.3'
(G. Pappa,
Spain (remote control),
0.13-m
Refractor + CCD);
   
14.50,
15.2,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
0.4'
tail in p.a. 135 deg);
   
13.89,
15.4,
1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 144 deg);
   
13.29,
15.1,
0.5'
(M. Olason,
Arizona,
0.05-m
Refractor + CCD);
   
12.95,
15.1,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
09.95,
15.8,
0.22'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
15" tail in p.a. 134 deg);
   
07.90,
16.3,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
05.93,
14.7,
1'
(M. Mašek,
Hodkovice n M.,
0.08-m
Refractor + CCD);
   
05.91,
16.4,
0.15'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
0.3'
tail in p.a. 141 deg);
   
04.99,
16.2,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
0.4'
tail in p.a. 162 deg);
   
03.95,
15.5,
1.2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.8'
tail in p.a. 160 deg);
   
03.11,
16.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
   
01.98,
13.9,
0.2'
(W. Hasubick,
0.44-m
Newtonian);
   
01.98,
15.6,
0.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.4'
tail in p.a. 168 deg);
   
01.94,
15.4,
1.2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.7'
tail in p.a. 163 deg);
   
01.91,
16.0,
0.2'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
0.4'
tail in p.a. 166 deg);
jun
29.97,
15.1,
0.3'
(C. Harder,
Jeersdorf f,
0.531-m
Newtonian);
   
29.96,
15.6,
0.8'
(U. Pilz,
Leipzig,
0.03-m
Refractor + CCD);
   
29.96,
15.6,
0.6'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
0.4'
tail in p.a. 173 deg);
   
29.96,
15.6,
1.2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.5'
tail in p.a. 177 deg);
   
29.93,
15.6,
0.5'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.93,
16.5,
0.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.91,
15.8,
0.35'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
0.4'
tail in p.a. 166 deg);
   
29.54,
15.5,
0.5'
(Y. Yamaguchi,
0.13-m
Hyperboloid astro-camera + CCD);
C/2024 G6 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.58,
17.6,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.47,
17.1,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.48,
17.3,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.46,
17.7,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.09,
17.6,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
19.47,
17.2,
0.3'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
01.90,
17.6,
0.7'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD);
C/2024 J2 (Wierzchos)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
01.17,
15.6,
1.5'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD);
C/2024 J3 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.55,
15.5,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
26.52,
15.2,
0.5'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.57,
15.6,
0.45'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
25.53,
15.6,
0.4'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
24.53,
15.2,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
24.51,
15.5,
0.45'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
21.95,
15.8,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
18.56,
15.1,
0.4'
(A. Pearce,
Perth Observatory, Bickley,
0.35-m
Schmidt-Cassegrain + CCD);
   
18.45,
15.6,
0.3'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
14.97,
14.9,
0.38'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
14.47,
15.5,
0.3'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
04.99,
15.7,
1'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
   
03.15,
16.3,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
03.03,
15.8,
11'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
jun
30.02,
15.3,
1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.4'
tail in p.a. 228 deg);
   
29.99,
15.7,
0.6'
(J. Zakrajšek,
Crni Vrh Observatory (MPC 106),
0.6-m
Prime focus of a reflector + CCD);
C/2024 L5 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
24.44,
16.4,
0.4'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
19.44,
17.2,
0.2'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
   
14.44,
16.2,
0.2'
(A. Pearce,
Mardella Observatory,
1-m
Newtonian + CCD);
C/2024 N1 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.13,
19.5,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
C/2024 N3 (Sarneczky)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.08,
18.2,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
C/2024 R4 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.16,
17.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
   
19.20,
17.8,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2025 J1 (Borisov)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
22.98,
19.3,
0.3'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD);
jun
29.93,
19.4,
0.38'
(K. Hills,
0.5-m
Newtonian + CCD);
C/2025 K1 (ATLAS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
28.63,
13.0,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
27.79,
13.3,
0.6'
(D. Sidorko,
Korenovsk, Russia,
0.406-m
Newtonian);
   
27.01,
13.8,
0.48'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
1.3'
tail in p.a. 156 deg);
   
26.58,
13.5,
0.7'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
2.8'
tail in p.a. 175 deg);
   
26.55,
12.7,
0.7'
(O. Miyazaki,
0.32-m
Newtonian);
   
25.98,
12.2,
0.75'
(N. Quinn,
0.28-m
Schmidt-Cassegrain + CCD);
   
25.98,
13.3,
--
(G. van Buitenen,
Dordrecht, NL (G06),
0.203-m
Ritchey-Chretien + CCD);
   
24.96,
14.3,
0.32'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
2.6'
tail in p.a. 184 deg);
   
24.57,
12.7,
0.8'
(O. Miyazaki,
0.32-m
Newtonian);
   
23.99,
12.8,
0.53'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD;
1.5'
tail in p.a. 192 deg);
   
23.99,
13.3,
0.53'
(M. Paradowski,
Dabrowa, Poland,
0.254-m
Schmidt-Newtonian + CCD;
1.8'
tail in p.a. 192 deg);
   
23.63,
12.8,
1'
(O. Miyazaki,
0.32-m
Newtonian);
   
23.19,
14.2,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD;
6'
tail in p.a. 195 deg);
   
22.98,
13.8,
0.38'
(S. Shurpakov,
0.41-m
Newtonian + CCD;
4'
tail in p.a. 189 deg);
   
22.91,
14.2,
0.8'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
5.3'
tail in p.a. 192 deg);
   
22.63,
12.7,
1.2'
(O. Miyazaki,
0.32-m
Newtonian);
   
22.56,
13.9,
0.6'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
3.2'
tail in p.a. 193 deg);
   
22.56,
14.6,
0.4'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
22.56,
13.2,
0.6'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
22.00,
13.6,
1.3'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
21.98,
14.6,
0.3'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
3.6'
tail in p.a. 195 deg);
   
21.02,
13.9,
1'
(J. Chambó Bris,
Valles, Valencia, Spain,
0.2-m
Newtonian + CCD;
3.5'
tail in p.a. 199 deg);
   
20.92,
13.3,
1.1'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
20.85,
14.6,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.6'
tail in p.a. 201 deg);
   
20.59,
13.7,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
20.59,
14.9,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD);
   
20.59,
14.2,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
4.5'
tail in p.a. 200 deg);
   
20.01,
13.9,
0.8'
(M. Mašek,
Hodkovice n M.,
0.2-m
Newtonian + CCD;
0.7'
tail in p.a. 206 deg);
   
20.00,
13.9,
0.8'
(M. Mašek,
Hodkovice n M.,
0.2-m
Newtonian + CCD;
2.3'
tail in p.a. 199 deg);
   
19.17,
14.2,
0.94'
(K. Hills,
0.5-m
Newtonian + CCD);
   
17.94,
14.2,
0.6'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
16.99,
14.8,
0.3'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
2.5'
tail in p.a. 211 deg);
   
16.95,
13.9,
0.5'
(J. Gonzalez Suarez,
0.203-m
Schmidt-Cassegrain);
   
15.12,
15.8,
0.18'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
2.5'
tail in p.a. 215 deg);
   
14.03,
14.5,
0.9'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
2.2'
tail in p.a. 212 deg);
   
11.66,
14.3,
0.5'
(K. Yoshimoto,
0.3-m
Newtonian + CCD;
1.8'
tail in p.a. 220 deg);
   
10.12,
15.5,
0.15'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
2.1'
tail in p.a. 221 deg);
   
07.40,
15.4,
0.5'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD;
0.8'
tail in p.a. 224 deg);
   
07.40,
15.0,
0.5'
(M. Mašek,
Malargue,
0.3-m
Cassegrain reflector + CCD;
0.7'
tail in p.a. 226 deg);
   
06.09,
15.0,
1'
(T. Lehmann,
Hakos (remote),
0.106-m
Refractor + CCD;
2'
tail in p.a. 224 deg);
   
05.22,
15.4,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD;
0.7'
tail in p.a. 235 deg);
   
05.09,
15.3,
0.5'
(J. Chambó Bris,
Valles, Valencia, Spain,
0.2-m
Newtonian + CCD;
1'
tail in p.a. 227 deg);
   
04.97,
15.7,
1.2'
(J. Koukal,
Valasske Mezirici,
0.5-m
Newtonian + CCD;
1.3'
tail in p.a. 228 deg);
   
04.03,
15.3,
1.2'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.9'
tail in p.a. 226 deg);
   
03.63,
15.4,
0.4'
(K. Yoshimoto,
0.203-m
Ritchey-Chretien + CCD;
0.7'
tail in p.a. 230 deg);
   
03.10,
15.7,
2.3'
(D. Heggie,
ASERO, Trevinca, Spain,
0.303-m
Newtonian + CCD;
2.1'
tail in p.a. 230 deg);
   
03.07,
15.7,
0.4'
(P. Carson,
PGC Observatory Z10, Fregenal de la sierra, Spain,
0.315-m
Cassegrain reflector + CCD);
   
02.02,
15.4,
1.1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
2'
tail in p.a. 232 deg);
   
01.09,
15.8,
0.6'
(W. Kutschera,
0.508-m
Newtonian + CCD);
   
01.03,
15.5,
0.8'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.4'
tail in p.a. 233 deg);
jun
30.99,
15.4,
1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
1.5'
tail in p.a. 230 deg);
   
30.05,
15.5,
1.1'
(S. Fritsche,
Koeditz,
0.279-m
Newtonian + CCD;
0.6'
tail in p.a. 234 deg);
   
30.02,
15.4,
0.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
30.02,
16.4,
0.6'
(M. Lošťák,
0.2-m
Newtonian + CCD);
   
29.99,
15.6,
0.9'
(T. Lehmann,
Weimar,
0.279-m
Newtonian + CCD;
1.7'
tail in p.a. 232 deg);
C/2025 K3 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
25.10,
20.5,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);
C/2025 M2 (PANSTARRS)
Total-magnitude and coma-diameter estimates (visual unless otherwise noted):
2025
jul
23.23,
20.0,
--
(J. Maikner,
Comet Hunter Observatory2, New Ringgold,
0.305-m
Hyperboloid astro-camera + CCD);