Weekly Information about Bright Comets (2026 Jan. 31: South)

Japanese version Home page	Updated on January 31, 2026
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

C/2024 E1 ( Wierzchos ) Now it is 6.6 mag (Jan. 29, Chris Wyatt). It will fade out rapidly after this. In the Northern Hemisphere, it is not observable now, but it will be observable soon. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 22 21.02 -43 6.2 1.166 0.612 31 6.5 20:44 ( 47, 14) Feb. 7 23 35.77 -41 4.7 1.068 0.686 38 6.8 20:36 ( 54, 21) C/2025 A6 ( Lemmon ) It brightened up to 3.7 mag in late October (Oct. 26, Juan Jose Gonzalez). Appearing in the morning sky in the Southern Hemisphere. Now it is brighter than originally predicted by 4 mag. Now it is 9.0 mag (Jan. 25, Chris Wyatt). Fading rapidly. In the Northern Hemisphere, it is not observable now, but it will appear in May. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 17 1.19 -49 40.8 2.064 1.721 56 9.1 3:41 (309, 38) Feb. 7 16 53.96 -52 19.1 2.037 1.828 63 9.5 3:51 (312, 45) 24P/Schaumasse Now it is 9.4 mag (Jan. 28, Virgilio Gonano). It will fade out rapidly after this. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 14 35.72 9 0.1 0.616 1.221 96 9.3 3:41 (222, 36) Feb. 7 14 52.34 8 5.4 0.624 1.247 99 9.6 3:51 (218, 39) 88P/Howell Now it is 14.5 mag (Jan. 14, Mike Olason). Brightening slowly. It stays extremely low in the Northern Hemisphere. But it will become high in summer. It locates somewhat low in the Southern Hemisphere. But it will become high in summer. It is fainter than this ephemeris recently. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 18 38.36 -24 11.4 2.189 1.451 32 10.9 3:41 (292, 10) Feb. 7 19 4.49 -23 53.4 2.146 1.426 33 10.6 3:51 (291, 12) 240P/NEAT Now it is 12.6 mag (Jan. 16, Thomas Lehmann). Fading gradually. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. The component B also brightened rapidly. Now it is bright as 14.9 mag (Jan. 9, Mitsunori Tsumura). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 3 30.59 23 18.0 1.667 2.148 105 12.4 20:44 (151, 25) Feb. 7 3 37.43 24 47.5 1.754 2.157 100 12.6 20:36 (149, 23) C/2025 T1 ( ATLAS ) It brightened up to 9.0 mag from late November to early December (Nov. 22, Thomas Lehmann). Now it is 10.8 mag (Jan. 20, Mike Olason). Fading rapidly. It will be fainter than 18 mag in May. Now it is not observable. It will appear in March in the Southern Hemisphere. In the Northern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 21 20.86 -11 42.9 2.424 1.459 8 12.8 20:44 ( 61,-17) Feb. 7 21 29.20 -13 27.7 2.514 1.530 2 13.3 20:36 ( 58,-18) 235P/LINEAR It became brighter than expected. Now it is 13.0 mag (Jan. 21, Ken-ichi Kadota). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 15 40.00 -18 3.7 2.040 2.003 73 13.1 3:41 (262, 43) Feb. 7 15 53.89 -18 14.6 1.977 2.012 77 13.1 3:51 (258, 48) C/2025 R3 ( PanSTARRS ) It became brighter than expected. It is expected to brighten up to 5 mag in April. Now it is 13.8 mag (Jan. 15, Michael Jager). It will brighten rapidly after this. In the Northern Hemisphere, it will be unobservable soon. But it will be observable again in February. In the Southern Hemisphere, it is not observable now, but it will appear in May. At the high light, it is observable in the low sky before the perihelion passage in the Northern Hemisphere, or after the perihelion in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 22 14.20 17 47.6 2.287 1.667 40 13.5 20:44 ( 95,-25) Feb. 7 22 15.92 17 35.8 2.246 1.556 35 13.2 20:36 ( 93,-28) 29P/Schwassmann-Wachmann 1 It brightened in outburst on Dec. 5. Now it is 12.0 mag (Jan. 25, Chris Wyatt). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 11 31.00 -3 43.2 5.567 6.309 135 13.7 2:52 (180, 59) Feb. 7 11 29.01 -3 40.1 5.493 6.309 143 13.7 2:22 (180, 59) C/2025 L1 ( ATLAS ) It is expected to brighten up to 13.5 mag and to be observable in good condition in spring. Now it is 16.0 mag (Jan. 2, Hidetaka Sato). Fading gradually. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 16 1.24 -26 50.8 1.814 1.697 67 14.1 3:41 (276, 43) Feb. 7 16 1.83 -23 18.0 1.682 1.713 74 14.0 3:51 (267, 49) C/2022 N2 ( PanSTARRS ) Now it is 14.2 mag (Jan. 10, Hirohisa Sato). Fading slowly. It will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 3 20.87 24 19.9 3.808 4.147 103 14.1 20:44 (149, 24) Feb. 7 3 24.88 24 22.8 3.932 4.171 97 14.2 20:36 (146, 22) 78P/Gehrels 2 It will brighten up to 12 mag in summer. Now it is 16.2 mag (Dec. 28, Francois Kugel). Brightening slowly. In the Northern Hemisphere, it will be unobservable soon. In the Southern Hemisphere, it is not observable now, but it will appear in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 22 31.64 -5 56.1 3.155 2.318 26 14.4 20:44 ( 78, -8) Feb. 7 22 44.98 -4 47.4 3.165 2.292 23 14.2 20:36 ( 78, -9) C/2022 QE78 ( ATLAS ) Now it is 14.6 mag (Jan. 27, Yoshimi Nagai). It stays 15 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 9 16.67 27 43.1 4.604 5.573 168 14.3 0:38 (180, 27) Feb. 7 9 13.95 28 26.6 4.618 5.583 166 14.3 0:08 (180, 27) C/2024 J3 ( ATLAS ) Now it is 14.6 mag (Dec. 19, Kunihiro Shima). Brightening slowly. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now, but it will be observable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 19 37.45 -0 25.4 5.512 4.640 25 14.6 3:41 (282,-15) Feb. 7 19 42.65 0 39.5 5.444 4.608 29 14.5 3:51 (276,-10) C/2024 T5 ( ATLAS ) Now it is 14.5 mag (Jan. 7, Ken-ichi Kadota). It stays 14 mag for a while. In the Northern Hemisphere, it will be unobservable in March. In the Southern Hemisphere, it stays observable in good condition. It is expected to brighten up to 11 mag in winter between 2026 and 2027. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 2 38.20 -35 46.2 5.612 5.474 76 14.6 20:44 ( 77, 56) Feb. 7 2 40.44 -34 27.0 5.640 5.435 73 14.6 20:36 ( 77, 52) C/2026 B2 ( Sun-Gao ) Bright new comet discovered near Sun. Now it is 14.7 mag (Jan. 21, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag in May. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 19 39.74 10 3.2 2.029 1.316 32 14.7 3:41 (273,-22) Feb. 7 20 6.02 13 37.7 2.036 1.345 34 14.8 3:51 (268,-21) 3I/2025 N1 ( ATLAS ) Third interstellar object in history following 1I/'Oumuamua and 2I/Borisov. The eccentricity is extremely big as 6. It approached to Sun down to 1.38 a.u. in late October. It brightened up to 8.9 mag in November (Nov. 12, Toshiyuki Takahashi). Now it is 12.6 mag (Jan. 25, Chris Wyatt). Fading rapidly. It will be fainter than 18 mag in March. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 7 50.37 18 28.0 2.661 3.622 165 14.7 23:07 (180, 37) Feb. 7 7 33.81 19 5.0 2.940 3.852 154 15.2 22:23 (180, 36) C/2021 G2 ( ATLAS ) Now it is 15.1 mag (Jan. 20, Thomas Lehmann). It stays 15 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 17 10.35 2 15.5 6.751 6.288 58 14.8 3:41 (258, 13) Feb. 7 17 14.33 2 52.3 6.694 6.319 63 14.8 3:51 (252, 19) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 14.6 mag (Jan. 20, Chris Wyatt). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition. In the Northern Hemisphere, it is not observable until 2030. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 4 45.19 -73 46.9 14.433 14.305 80 14.9 20:44 ( 5, 51) Feb. 7 4 43.80 -73 25.9 14.406 14.283 80 14.8 20:36 ( 7, 51) C/2023 R1 ( PanSTARRS ) Now it is 15.3 mag (Dec. 19, Kunihiro Shima). Brightening slowly. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now, but it will be observable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 19 30.02 -3 3.9 4.500 3.630 24 15.2 3:41 (283,-12) Feb. 7 19 31.78 -3 12.7 4.444 3.619 29 15.1 3:51 (277, -5) 40P/Vaisala 1 It became brighter than expected. Now it is 14.3 mag (Jan. 21, Michael Jager). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 16 25.93 -11 1.8 2.202 1.991 64 15.2 3:41 (263, 30) Feb. 7 16 39.85 -11 13.7 2.165 2.020 68 15.2 3:51 (259, 35) 210P/Christensen It brightened up to 9.5 mag in late November (Nov. 28, Michael Jager, Gerald Rhemann, E. Prosperi). Now it is 15.0 mag (Jan. 21, Michael Jager). Fading rapidly. It will be fainter than 18 mag in March. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 15 44.24 -8 7.6 1.234 1.371 75 15.7 3:41 (253, 36) Feb. 7 15 48.78 -7 46.1 1.242 1.465 81 16.1 3:51 (246, 42) C/2025 R2 ( SWAN ) It brightened up to 5.2 mag in October (Oct. 11, Virgilio Gonano). Now it is 15.5 mag (Jan. 15, Ken-ichi Kadota). Fading rapidly. It will be fainter than 18 mag in April. In the Northern Hemisphere, it will be getting lower gradually. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 1 40.97 15 6.1 2.561 2.548 78 15.8 20:44 (123, 17) Feb. 7 1 50.10 15 48.3 2.749 2.642 73 16.1 20:36 (122, 15) C/2022 R6 ( PanSTARRS ) Now it is 16.1 mag (Jan. 12, ATLAS-MLO, Mauna Loa). It stays 16 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 8 43.45 -9 4.0 5.755 6.650 153 16.0 0:05 (180, 64) Feb. 7 8 40.83 -8 20.0 5.756 6.658 154 16.0 23:30 (180, 63) C/2025 J1 ( Borisov ) Now it is 16.4 mag (Jan. 7, Ken-ichi Kadota). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 5 12.30 71 13.4 3.217 3.773 117 16.3 20:44 (179,-16) Feb. 7 5 0.63 68 23.3 3.251 3.754 113 16.3 20:36 (176,-14) 218P/LINEAR It will brighten up to 16 mag in spring. Now it is 16.8 mag (Dec. 30, Hidenori Nohara). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 16 32.25 -20 41.0 1.311 1.202 61 16.6 3:41 (273, 34) Feb. 7 17 5.22 -21 23.1 1.285 1.175 60 16.4 3:51 (273, 35) 145P/Shoemaker-Levy 5 Now it is 16.3 mag (Jan. 21, Ken-ichi Kadota). Fading slowly. It will be unobservable in March in the Southern Hemisphere, or in May in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 0 33.90 5 28.5 2.194 1.890 59 16.4 20:44 (105, 11) Feb. 7 0 48.42 7 32.4 2.252 1.891 56 16.4 20:36 (106, 8) C/2025 Q3 ( ATLAS ) Now it is 15.9 mag (Jan. 12, ATLAS-MLO, Mauna Loa). Fading slowly. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 2 5.97 -15 24.4 2.174 2.134 74 16.5 20:44 (101, 41) Feb. 7 2 9.41 -16 44.0 2.271 2.124 68 16.5 20:36 ( 97, 39) 164P/Christensen Now it is 16.5 mag (Jan. 9, Mitsunori Tsumura). Fading gradually. It will be fainter than 18 mag in April. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 11 21.08 27 20.2 1.882 2.744 144 16.5 2:42 (180, 28) Feb. 7 11 16.29 28 29.0 1.884 2.785 150 16.6 2:10 (180, 27) C/2022 E2 ( ATLAS ) It was observed at 12-13 mag for a long time in 2024. Now it is 15.9 mag (Jan. 2, ATLAS-MLO, Mauna Loa). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in spring. In the Southern Hemisphere, it is not observable now, but it will appear in April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 22 40.53 29 10.3 6.198 5.667 53 16.5 20:44 (109,-25) Feb. 7 22 43.51 28 49.0 6.315 5.710 48 16.6 20:36 (107,-28) 493P/2024 Q2 ( LONEOS ) Now it is 16.6 mag (Jan. 10, Hirohisa Sato). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 4 23.42 50 30.9 3.265 3.824 117 16.6 20:44 (170, 3) Feb. 7 4 25.59 49 52.8 3.344 3.826 112 16.6 20:36 (167, 3) 195P/Hill Now it is 17.4 mag (Jan. 11, ATLAS South Africa). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 9 45.69 -33 58.9 3.852 4.514 126 16.7 1:07 (180, 89) Feb. 7 9 41.82 -34 8.0 3.820 4.519 130 16.6 0:35 (180, 89) 43P/Wolf-Harrington Now it is 16.6 mag (Jan. 19, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag in May. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 11 13.56 -9 17.6 1.958 2.754 136 16.7 2:35 (180, 64) Feb. 7 11 10.82 -9 20.5 1.923 2.776 143 16.7 2:04 (180, 64) C/2023 F3 ( ATLAS ) Now it is 16.9 mag (Jan. 8, ATLAS-HKO, Haleakala). It stays 17 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 10 15.80 -23 23.4 5.125 5.856 134 16.7 1:37 (180, 79) Feb. 7 10 8.09 -22 42.0 5.089 5.880 140 16.7 1:02 (180, 78) C/2024 G6 ( ATLAS ) Now it is 17.0 mag (July 25, Ken-ichi Kadota). It stays 17 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 16 35.42 -4 18.4 6.798 6.431 64 16.8 3:41 (258, 24) Feb. 7 16 36.47 -3 33.0 6.685 6.430 70 16.8 3:51 (251, 31) C/2024 A1 ( ATLAS ) Now it is 16.5 mag (Jan. 18, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag in May. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 7 19.88 62 19.5 3.638 4.363 132 16.8 22:37 (180, -7) Feb. 7 7 5.52 63 2.9 3.727 4.390 126 16.9 21:56 (180, -8) 261P/Larson Now it is 16.4 mag (Jan. 5, WFST, Lenghu). Fading gradually. It will be fainter than 18 mag in April. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 23 28.00 1 34.2 2.643 2.033 42 16.8 20:44 ( 92, 0) Feb. 7 23 42.96 3 7.8 2.700 2.041 39 16.9 20:36 ( 93, -2) 123P/West-Hartley It will brighten up to 15 mag from autumn to winter. Now it is 17.7 mag (Jan. 7, Hirohisa Sato). Brightening slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 3 21.83 27 54.2 2.349 2.763 104 16.9 20:44 (151, 21) Feb. 7 3 25.37 28 11.1 2.414 2.734 98 16.9 20:36 (148, 19) C/2023 X2 ( Lemmon ) Now it is 17.4 mag (Jan. 15, Ken-ichi Kadota). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 20 17.14 81 32.8 4.844 5.095 99 16.9 3:41 (189,-39) Feb. 7 20 32.85 81 19.9 4.883 5.098 96 16.9 3:51 (190,-38) C/2023 H5 ( Lemmon ) Now it is 16.6 mag (Dec. 26, Kunihiro Shima). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 19 45.69 61 29.3 4.727 4.660 80 17.0 3:41 (216,-40) Feb. 7 20 2.22 61 21.4 4.779 4.682 78 17.0 3:51 (216,-38) C/2023 RS61 ( PanSTARRS ) Although it is around 20 mag usually, now it is bright in outburst. Now it is 17.5 mag (Jan. 7, W. Hasubick). It stays 17 mag for a while. It will be unobservable in March in the Southern Hemisphere, or in May in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 2 43.41 36 0.8 8.539 8.737 98 17.0 20:44 (148, 9) Feb. 7 2 44.70 35 52.3 8.640 8.728 91 17.0 20:36 (145, 8) C/2023 C2 ( ATLAS ) It brightened up to 12.7 mag in 2024 summer (Aug. 7, 2024, Thomas Lehmann). Now it is 16.9 mag (Jan. 12, ATLAS-HKO, Haleakala). It stays 18 mag for a while. In the Northern Hemisphere, it will be getting lower gradually. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 23 25.80 47 54.0 5.241 5.056 73 17.1 20:44 (132,-25) Feb. 7 23 34.24 47 59.5 5.362 5.111 70 17.2 20:36 (132,-27) C/2025 K1 ( ATLAS ) It brightened up to 9.3 mag in November (Nov. 2, Virgilio Gonano). The nucleus was split into four components. Now it is 16.7 mag (Jan. 19, Thomas Lehmann). Fading rapidly. It will be fainter than 18 mag soon. In the Northern Hemisphere, it will be getting lower gradually. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 1 10.66 32 22.9 2.278 2.308 79 17.1 20:44 (131, 0) Feb. 7 1 15.66 32 1.8 2.497 2.411 73 17.5 20:36 (129, -2) C/2026 A1 ( MAPS ) Kreutz sungrazer comet discovered furthest from Sun in history. It will approach to Sun down to 0.005 a.u. on Apr. 4. Now it is 17.8 mag (Jan. 27, Ken-ichi Kadota). It is expected to brighten up to 8-9 mag when observable on the ground. It will be fainter than 18 mag in May. It will be unobservable in March in the Northern Hemisphere, or in April in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 4 9.06 -29 54.0 1.326 1.744 96 17.5 20:44 (102, 73) Feb. 7 3 46.39 -27 20.8 1.305 1.613 88 17.2 20:36 ( 99, 63) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.6 mag (Oct. 19, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. It locates somewhat low in the Southern Hemisphere. But it will become high in spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 0 8.25 -47 59.9 11.779 11.170 49 17.3 20:44 ( 51, 32) Feb. 7 0 9.86 -47 20.7 11.832 11.184 47 17.4 20:36 ( 50, 29) 47P/Ashbrook-Jackson Now it is 16.5 mag (Jan. 21, Ken-ichi Kadota). It stays 18 mag for a while. It will be unobservable soon in the Southern Hemisphere, or in March in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 23 58.97 4 3.9 3.380 2.860 50 17.3 20:44 ( 98, 4) Feb. 7 0 8.41 5 18.6 3.459 2.868 46 17.4 20:36 ( 98, 2) (306173) 2010 NK83 Peculiar asteroid moving along a cometary orbit. Now it is 17.0 mag (Jan. 14, Takaaki Oribe). Fading gradually. It will be fainter than 18 mag soon. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 7 43.50 26 28.3 1.685 2.639 161 17.3 23:01 (180, 29) Feb. 7 7 40.33 27 2.6 1.738 2.659 153 17.5 22:30 (180, 28) C/2024 G2 ( ATLAS ) Now it is 17.3 mag (Jan. 11, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 12 0.23 -6 22.2 4.955 5.614 127 17.5 3:21 (180, 62) Feb. 7 11 55.96 -5 16.2 4.874 5.630 136 17.4 2:49 (180, 60) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. Now it is 16.9 mag (Sept. 29, ATLAS South Africa). It stays 18 mag for a while. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 19 52.81 -64 45.8 9.904 9.278 48 17.7 3:41 (335, 22) Feb. 7 19 57.47 -64 50.6 9.910 9.326 51 17.7 3:51 (333, 25) 63P/Wild 1 Now it is 17.3 mag (Jan. 11, T. Chen, J. Camarasa). Brightening gradually. In the Northern Hemisphere, it stays observable in good condition. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 6 6.74 51 13.4 1.695 2.474 133 17.9 21:25 (180, 4) Feb. 7 6 3.56 50 10.4 1.709 2.437 127 17.7 20:54 (180, 5) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 17.9 mag (Jan. 11, ATLAS-HKO, Haleakala). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 5 35.17 31 6.3 9.798 10.500 133 17.7 20:53 (180, 24) Feb. 7 5 33.11 31 8.1 9.938 10.547 125 17.8 20:36 (177, 24) P/2023 S1 ( PanSTARRS ) It brightened up to 13.7 mag in last winter (Jan. 4, 2025, W. Pei). It stays 18 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 15 12.41 -27 1.1 3.300 3.240 77 17.8 3:41 (270, 53) Feb. 7 15 18.19 -27 41.7 3.221 3.260 83 17.8 3:51 (266, 59) 302P/Lemmon-PanSTARRS It brightened very rapidly, and it became brighter than expected. Now it is 17.1 mag (Dec. 26, ATLAS-HKO, Haleakala). It stays 18 mag for a while. In the Northern Hemisphere, it will be getting lower gradually. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 0 55.29 -0 1.2 3.942 3.589 62 17.8 20:44 (103, 18) Feb. 7 1 1.97 0 48.1 4.043 3.600 56 17.9 20:36 (102, 15) 407P/PanSTARRS-Fuls It has not been observed yet in this apparition. It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 7 14.18 26 54.9 1.566 2.496 155 17.9 22:32 (180, 28) Feb. 7 7 9.42 27 9.5 1.586 2.474 147 17.9 22:00 (180, 28) C/2024 X2 ( ATLAS ) Now it is 17.8 mag (Jan. 15, Ken-ichi Kadota). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 8 12.71 11 20.3 3.111 4.081 168 17.9 23:30 (180, 44) Feb. 7 8 3.47 13 17.6 3.161 4.107 161 18.0 22:53 (180, 42) C/2019 U5 ( PanSTARRS ) Now it is 17.8 mag (Dec. 28, Jean-Claude Merlin). It stays 18 mag for a while. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 4 27.44 -44 41.1 8.926 9.039 93 17.9 20:44 ( 45, 75) Feb. 7 4 24.61 -43 58.3 9.025 9.083 90 18.0 20:36 ( 54, 72) 489P/Denning It had been lost for 113 years. It passed the perihelion on Dec. 4. It brightened up to 18 mag in outburst in 2007. Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 31 13 14.20 -3 50.5 1.046 1.686 112 21.6 3:41 (205, 57) Feb. 7 13 20.13 -4 40.6 1.020 1.715 117 21.5 3:51 (191, 59)