Weekly Information about Bright Comets (2025 Feb. 1: North)

Japanese version Home page	Updated on February 1, 2025
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

C/2024 G3 ( ATLAS ) It approached to Sun down to 0.09 a.u. on Jan. 13. It brightened up to -2 or -3 mag and it was detected even in the daylight. The nucleus was disintegrated on Jan. 19. However, its long tail is still visible. Now it is 4.5 mag (Jan. 30, Marco Goiato). Fading rapidly. In the Northern Hemisphere, it will never be observable after this. It stays extremely 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) Feb. 1 22 24.16 -34 53.4 1.421 0.690 26 6.2 18:55 ( 55,-11) Feb. 8 22 50.06 -37 3.7 1.594 0.871 28 7.4 19:01 ( 54,-14) C/2023 A3 ( Tsuchinshan-ATLAS ) It brightened up to -3 mag due to the forward scattering on Oct. 9 in the SOHO coronagraph images (Q.-c. Zhang, Charles S. Morris). It became a great comet of 0 mag on the ground. Now it is 11.0 mag (Jan. 28, Ken-ichi Kadota). Fading slowly. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now, but it will appear in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 20 6.15 9 30.8 3.245 2.438 29 11.5 5:32 (264, 8) Feb. 8 20 10.56 10 24.1 3.323 2.537 31 11.6 5:27 (265, 12) 249P/LINEAR It has not been observed yet in this apparition. It will fade out rapidly after this. It will be fainter than 18 mag in March. Now it is not observable. It will appear in March 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) Feb. 1 20 41.53 -15 39.9 1.477 0.500 4 11.5 5:32 (280,-14) Feb. 8 21 34.13 -11 23.7 1.497 0.518 4 11.8 19:01 ( 86,-14) 21P/Giacobini-Zinner Brightening slowly. Now it is not observable. It will brighten up to 10 mag in spring. But the condition of this apparition is bad. It is not observable when the comet is bright. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 20 45.61 -1 23.1 2.165 1.248 16 12.2 5:32 (267, -7) Feb. 8 21 12.24 -0 42.4 2.122 1.195 14 11.8 5:27 (266, -7) 13P/Olbers It returned for the first time in 68 years. It brightened up to 6.2 mag in early summer (July 1, Virgilio Gonano). Fading slowly. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 18 5.97 -18 11.4 3.758 3.081 40 13.3 5:32 (304, 14) Feb. 8 18 13.32 -18 39.6 3.755 3.152 46 13.4 5:27 (307, 16) C/2022 E2 ( ATLAS ) Now it is 12.9 mag (Jan. 31, Osamu Miyazaki). Fading slowly. In the Northern Hemisphere, it will be getting lower gradually. But it will be getting higher again after April. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 1 29.43 54 34.9 3.715 3.874 91 13.4 18:55 (141, 60) Feb. 8 1 26.45 53 6.4 3.848 3.894 85 13.5 19:01 (135, 55) 29P/Schwassmann-Wachmann 1 Now it is 12.2 mag (Jan. 31, Osamu Miyazaki). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 10 0.99 9 16.3 5.312 6.259 162 13.6 1:17 ( 0, 64) Feb. 8 9 57.90 9 27.0 5.286 6.261 170 13.6 0:47 ( 0, 64) C/2022 QE78 ( ATLAS ) Now it is 14.0 mag (Jan. 4, W. Pei). It stays 14 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 6 19.28 7 40.9 4.922 5.714 140 14.1 21:32 ( 0, 63) Feb. 8 6 17.68 8 22.1 4.976 5.700 133 14.1 21:03 ( 0, 63) C/2024 J2 ( Wierzchos ) Brightened rapidly up to 14.9 mag on Dec. 29. (Ken-ichi Kadota). Now it is 16.5 mag (Jan. 19, Michael Jager). It stays 14 mag for a while. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it is not observable now, but it will appear in May. Maybe it is fading now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 21 6.22 28 15.7 2.462 1.905 45 14.2 18:55 (118, 10) Feb. 8 21 29.16 27 14.3 2.488 1.880 42 14.1 19:01 (119, 7) C/2021 G2 ( ATLAS ) Now it is 14.2 mag (Jan. 4, Ken-ichi Kadota). It stays 14 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 15 22.38 -17 39.7 5.196 5.105 79 14.2 5:32 (341, 35) Feb. 8 15 25.92 -17 12.9 5.097 5.117 85 14.1 5:27 (346, 37) C/2023 C2 ( ATLAS ) It brightened up to 12.7 mag in summer (Aug. 7, Thomas Lehmann). Now it is 14.2 mag (Dec. 10, Ken-ichi Kadota). It stays 15 mag for a while. Now it is not observable. It will appear soon in the Northern Hemisphere, or in March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 21 0.27 -2 57.7 3.459 2.515 14 14.2 18:55 ( 94,-10) Feb. 8 21 11.11 -0 50.1 3.484 2.542 14 14.3 5:27 (266, -7) 12P/Pons-Brooks It returns for the first time in 70 years. It brightened up to 3.7 mag in early April (Apr. 6, Jose Guilherme Aguiar). Now it is 15.0 mag (Jan. 10, Thomas Lehmann). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now, but it will be observable soon. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 17 2.95 -49 6.5 4.443 3.989 56 14.3 5:32 (334, -2) Feb. 8 17 7.81 -49 21.3 4.426 4.060 62 14.3 5:27 (337, -1) P/2023 S1 Now it is 14.4 mag (Jan. 9, Thomas Lehmann). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 8 56.22 18 51.9 1.638 2.623 178 14.4 0:13 ( 0, 74) Feb. 8 8 50.34 18 45.7 1.643 2.622 170 14.4 23:35 ( 0, 74) C/2022 N2 ( PanSTARRS ) It is expected to brighten up to 13 mag in 2025 autumn, and it will be observable in good condition. Now it is 14.8 mag (Jan. 14, Ken-ichi Kadota). It stays 14 mag for a while. In the Northern Hemisphere, it will be unobservable in March. But it will be observable again in May. 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) Feb. 1 23 32.41 0 33.2 4.820 4.140 41 14.6 18:55 ( 74, 23) Feb. 8 23 39.77 1 22.1 4.863 4.117 36 14.6 19:01 ( 79, 18) 48P/Johnson Now it is 16.6 mag (Oct. 9, Hidetaka Sato). It stays 15 mag for a while. Now it is not observable. It will appear in March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 21 7.72 -20 1.9 3.003 2.020 3 15.0 18:55 ( 78,-18) Feb. 8 21 25.29 -19 6.2 2.997 2.014 4 14.9 5:27 (280,-20) C/2023 Q1 ( PanSTARRS ) Now it is 15.5 mag (Jan. 26, Michael Jager). Fading gradually. In the Northern Hemisphere, it stays observable in good condition. 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) Feb. 1 7 51.03 72 50.5 1.985 2.660 123 15.1 23:05 (180, 52) Feb. 8 7 45.71 71 18.5 2.025 2.679 121 15.2 22:32 (180, 54) 37P/Forbes It brightened up to 12.3 mag in autumn (Oct. 31, Thomas Lehmann). It will fade out rapidly after this. It will be fainter than 18 mag in May. In the Northern Hemisphere, it will be unobservable soon. 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) Feb. 1 22 14.56 -7 44.1 2.832 1.943 20 15.2 18:55 ( 79, 3) Feb. 8 22 30.35 -5 56.3 2.892 1.979 18 15.4 19:01 ( 83, 0) 49P/Arend-Rigaux Now it is 15.5 mag (Jan. 19, Michael Jager). Brightening slowly. It locates somewhat low. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 1 11.70 -9 46.0 1.827 1.616 61 15.5 18:55 ( 45, 33) Feb. 8 1 26.69 -7 17.7 1.840 1.583 59 15.3 19:01 ( 52, 32) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.1 mag (Jan. 9, Thomas Lehmann). 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) Feb. 1 3 31.80 -69 5.3 15.677 15.485 76 15.4 18:55 ( 1,-14) Feb. 8 3 31.94 -68 44.7 15.662 15.461 76 15.4 19:01 ( 4,-14) 496P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 16.5 mag (Jan. 22, Toshihiko Ikemura, Hirohisa Sato). It stays 16 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) Feb. 1 2 47.45 22 46.3 1.286 1.677 94 15.6 18:55 ( 47, 73) Feb. 8 3 0.11 24 41.7 1.324 1.658 90 15.5 19:01 ( 63, 71) C/2024 A1 ( ATLAS ) Now it is 15.8 mag (Jan. 18, Ken-ichi Kadota). 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) Feb. 1 6 59.00 -15 47.6 3.278 4.044 135 15.6 22:11 ( 0, 39) Feb. 8 6 52.02 -13 34.2 3.297 4.027 132 15.6 21:37 ( 0, 42) 43P/Wolf-Harrington Now it is 15.7 mag (Jan. 10, Ken-ichi Kadota). It stays 15 mag for a while. It will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 2 8.40 14 28.5 2.715 2.771 82 15.6 18:55 ( 51, 61) Feb. 8 2 15.95 14 47.1 2.787 2.749 77 15.6 19:01 ( 60, 57) C/2023 T3 ( Fuls ) Now it is 16.1 mag (Jan. 4, Ken-ichi Kadota). It stays 16 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) Feb. 1 13 13.05 -34 21.7 3.235 3.549 100 15.8 4:29 ( 0, 21) Feb. 8 13 16.53 -34 57.2 3.150 3.551 105 15.7 4:05 ( 0, 20) 333P/LINEAR It approached to Earth down to 0.55 a.u. in early December, and it brightened up to 10.7 mag (Dec. 5, Mike Olason). Now it is 14.2 mag (Jan. 12, Thomas Lehmann). Fading rapidly. It will be fainter than 18 mag in March. It locates somewhat 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) Feb. 1 22 27.37 28 36.2 1.810 1.409 50 15.7 18:55 (109, 25) Feb. 8 22 34.16 27 21.3 1.976 1.465 45 16.3 19:01 (111, 19) C/2023 H5 ( Lemmon ) Now it is 15.9 mag (Jan. 23, Ken-ichi Kadota). It stays 16 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 12 25.23 47 48.9 3.811 4.485 127 15.8 3:41 (180, 77) Feb. 8 12 22.48 50 16.8 3.771 4.470 130 15.7 3:11 (180, 75) 472P/2023 RL75 ( NEAT-LINEAR ) Now it is 15.8 mag (Jan. 3, Ken-ichi Kadota). 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) Feb. 1 6 8.67 9 55.8 2.870 3.665 138 15.9 21:22 ( 0, 65) Feb. 8 6 7.73 10 12.0 2.956 3.684 131 16.1 20:53 ( 0, 65) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 15.6 mag (Jan. 23, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag for a while. It will be getting lower gradually after this, and it will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 5 28.65 22 15.1 7.195 7.873 130 16.0 20:42 ( 0, 77) Feb. 8 5 26.29 22 27.6 7.345 7.927 123 16.1 20:12 ( 0, 77) C/2023 F3 ( ATLAS ) Now it is 16.7 mag (Jan. 10, Taras Prystavski). It stays 16 mag for a while. It stays extremely low in the Northern Hemisphere. But it will become high in winter. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 13 20.97 -46 45.6 5.044 5.191 93 16.2 4:37 ( 0, 8) Feb. 8 13 13.10 -47 8.9 4.932 5.191 99 16.1 4:02 ( 0, 8) C/2021 S3 ( PanSTARRS ) It brightened up to 9.6 mag from February to March in 2024 (Feb. 25, 2024, Thomas Lehmann). Now it is 16.1 mag (Jan. 7, Ken-ichi Kadota). It stays 17 mag for a while. It stays extremely 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 May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 21 57.74 31 3.0 5.098 4.533 50 16.1 18:55 (114, 20) Feb. 8 22 5.90 31 13.5 5.212 4.600 47 16.2 19:01 (118, 16) C/2024 B1 ( Lemmon ) It brightened up to 13.1 mag in autumn (Nov. 1, Thomas Lehmann). Now it is 16.1 mag (Jan. 4, Ken-ichi Kadota). Fading gradually. It will be fainter than 18 mag in April. 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) Feb. 1 17 45.09 16 13.5 2.588 2.230 58 16.1 5:32 (278, 40) Feb. 8 17 51.61 15 38.8 2.594 2.290 61 16.3 5:27 (282, 43) C/2022 R6 ( PanSTARRS ) Now it is 16.2 mag (Jan. 18, Ken-ichi Kadota). It stays 16 mag for a while. In the Northern Hemisphere, it will be unobservable 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) Feb. 1 6 44.46 -27 48.3 6.102 6.710 124 16.2 21:57 ( 0, 27) Feb. 8 6 42.61 -26 58.1 6.123 6.701 122 16.2 21:28 ( 0, 28) C/2024 Y1 ( Masek ) Now it is 15.8 mag (Jan. 24, Martin Masek). It will fade out rapidly after this. It will be fainter than 18 mag in March. 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) Feb. 1 3 20.38 -32 21.7 1.121 1.433 85 16.3 18:55 ( 5, 23) Feb. 8 3 40.94 -24 8.6 1.214 1.526 87 16.8 19:01 ( 9, 31) 30P/Reinmuth 1 Now it is 17.5 mag (Jan. 25, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 14 47.88 -6 59.9 2.106 2.331 90 16.4 5:32 (348, 47) Feb. 8 14 54.40 -7 3.5 2.054 2.366 95 16.4 5:27 (354, 48) 65P/Gunn Now it is 16.2 mag (July 30, Thomas Lehmann). Brightening slowly. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 17 20.96 -23 43.9 3.524 3.002 50 16.5 5:32 (316, 17) Feb. 8 17 31.61 -24 5.4 3.439 2.995 55 16.4 5:27 (319, 18) C/2019 U5 ( PanSTARRS ) Now it is 16.0 mag (Jan. 10, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 5 49.93 -49 8.5 6.458 6.727 101 16.5 21:02 ( 0, 6) Feb. 8 5 43.29 -48 18.5 6.537 6.772 99 16.5 20:28 ( 0, 7) C/2024 L5 ( ATLAS ) Now it is 16.7 mag (Jan. 14, ATLAS Chile). It stays 16 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in spring. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 15 8.57 -31 4.1 3.499 3.450 79 16.6 5:32 (348, 23) Feb. 8 15 2.63 -31 11.7 3.349 3.444 87 16.5 5:27 (354, 23) (3200) Phaethon Parent asteroid of Geminids meteor shower. Now it is 16.0 mag (Nov. 30, Katsumi Yoshimoto). It will brighten rapidly after this. It will be unobservable in March. But it will be observable again in May in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 1 30.27 14 4.4 1.071 1.241 74 16.8 18:55 ( 63, 54) Feb. 8 1 30.83 12 37.8 1.084 1.139 66 16.7 19:01 ( 69, 47) C/2019 L3 ( ATLAS ) It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 17.1 mag (Dec. 30, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 12 38.23 -58 37.5 9.481 9.564 91 16.7 3:54 ( 0, -4) Feb. 8 12 36.50 -59 5.1 9.447 9.607 96 16.7 3:25 ( 0, -4) C/2024 M1 ( ATLAS ) Almost stellar. It brightened up to 13.7 mag from late November to early December (Dec. 5, Toshihiko Ikemura, Hirohisa Sato). Now it is 16.4 mag (Jan. 12, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag in March. 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) Feb. 1 2 20.74 48 58.9 1.552 1.937 96 16.7 18:55 (140, 70) Feb. 8 2 19.29 50 33.3 1.692 1.980 91 16.9 19:01 (136, 64) 105P/Singer Brewster 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 will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 17 32.14 -17 39.8 2.561 2.053 48 16.8 5:32 (310, 20) Feb. 8 17 48.34 -17 26.4 2.507 2.056 52 16.8 5:27 (311, 21) 195P/Hill Now it is 16.9 mag (Jan. 9, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable 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) Feb. 1 6 25.41 -8 51.1 3.777 4.520 134 16.9 21:38 ( 0, 46) Feb. 8 6 22.90 -8 43.0 3.831 4.514 128 16.9 21:08 ( 0, 46) P/2019 Y3 ( Catalina ) It will approach to Earth down to 0.3 a.u. in March, and it is expected to brighten up to 16 mag. Now it is 18.2 mag (Jan. 29, Michael Jager). It brightens up to 16 mag, but it will turn to fade out rapidly after that. It will be fainter than 18 mag in April. In the Northern Hemisphere, it stays observable in good condition. In the Southern 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) Feb. 1 2 30.40 -15 43.6 0.542 1.030 79 17.3 18:55 ( 21, 37) Feb. 8 2 38.56 -9 46.3 0.494 0.991 76 16.9 19:01 ( 32, 40) 487P/2024 N5 ( Siding Spring ) First return of a new periodic comet which brightened up to 16 mag in 2012. Now it is 15.9 mag (Jan. 7, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag soon. 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) Feb. 1 2 58.03 57 24.8 1.617 2.093 104 17.0 18:55 (166, 66) Feb. 8 3 9.12 57 48.5 1.714 2.127 100 17.3 19:01 (160, 65) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.9 mag (Dec. 20, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 0 46.54 -59 40.9 11.057 10.582 58 17.0 18:55 ( 21,-11) Feb. 8 0 47.96 -58 54.8 11.090 10.590 57 17.0 19:01 ( 25,-13) C/2022 L2 ( ATLAS ) Now it is 16.6 mag (Jan. 13, ATLAS Chile). Fading slowly. It will be fainter than 18 mag in March. 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) Feb. 1 7 6.59 -40 21.5 3.686 4.225 116 17.1 22:18 ( 0, 15) Feb. 8 6 53.99 -38 52.4 3.758 4.275 115 17.2 21:38 ( 0, 16) C/2020 K1 ( PanSTARRS ) It brightened up to 12.1 mag in 2023 spring (May 20, 2023, Jose Guilherme de S. Aguiar). Now it is 17.1 mag (Jan. 4, ATLAS South Africa). It stays 18 mag for a while. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 5 41.50 -35 28.2 6.047 6.447 109 17.2 20:54 ( 0, 20) Feb. 8 5 38.37 -34 16.4 6.142 6.495 106 17.2 20:23 ( 0, 21) 32P/Comas Sola It brightened up to 13.5 mag in last winter (Dec. 5, 2023, Chris Wyatt). Now it is 17.8 mag (Dec. 28, ATLAS-HKO, Haleakala). 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) Feb. 1 14 26.29 -7 42.5 2.861 3.109 95 17.2 5:32 (356, 47) Feb. 8 14 29.06 -7 54.6 2.797 3.147 101 17.2 5:17 ( 0, 47) 276P/Vorobjov Now it is 17.2 mag (Jan. 22, Ken-ichi Kadota). It stays 18 mag for a while. It will be getting lower gradually after this, and it will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 2 49.21 9 5.7 3.769 3.906 90 17.2 18:55 ( 28, 62) Feb. 8 2 53.26 9 21.2 3.875 3.908 84 17.3 19:01 ( 41, 58) 242P/Spahr Now it is 17.3 mag (Jan. 13, ATLAS South Africa). It stays 18 mag for a while. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in April. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 3 48.15 -13 34.7 3.724 3.976 97 17.4 19:01 ( 0, 42) Feb. 8 3 50.45 -12 47.2 3.812 3.977 92 17.4 19:01 ( 8, 42) C/2024 G2 ( ATLAS ) Now it is 17.4 mag (Jan. 4, B. Lutkenhoner, E. Cortes). It stays 17 mag for a while. It stays extremely low in the Northern Hemisphere. But it will become high in winter. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 12 48.17 -48 35.0 5.233 5.437 96 17.4 4:04 ( 0, 6) Feb. 8 12 42.62 -48 25.5 5.121 5.428 102 17.4 3:31 ( 0, 6) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 17.6 mag (Jan. 4, ATLAS-HKO, Haleakala). Brightening slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it is not observable now, but it will appear in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 17 49.81 41 40.3 5.196 5.000 73 17.6 5:32 (244, 48) Feb. 8 17 56.04 42 12.4 5.092 4.928 74 17.5 5:27 (244, 51) 305P/Skiff Now it is 17.1 mag (Jan. 13, Catalina Sky Survey). It will fade out rapidly after this. 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) Feb. 1 2 45.41 11 8.5 1.350 1.676 90 17.5 18:55 ( 31, 63) Feb. 8 3 4.26 11 51.5 1.445 1.719 87 17.7 19:01 ( 39, 62) 130P/McNaught-Hughes It brightened up to 14 mag from summer to autumn. Now it is 17.0 mag (Jan. 10, Ken-ichi Kadota). Fading slowly. It will be fainter than 18 mag soon. In the Northern Hemisphere, it will be getting lower gradually. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 2 16.79 12 3.9 2.814 2.882 83 17.5 18:55 ( 45, 60) Feb. 8 2 23.65 12 50.4 2.944 2.916 78 17.7 19:01 ( 56, 57) P/2015 CD60 ( LINEAR ) Now it is 17.6 mag (Jan. 22, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this. It will be fainter than 18 mag soon. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 6 56.31 14 19.2 1.089 2.006 150 17.5 22:09 ( 0, 69) Feb. 8 6 55.42 13 24.5 1.141 2.020 143 17.6 21:41 ( 0, 68) (308607) 2005 WY3 Peculiar asteroid moving along a cometary orbit. Now it is 18.5 mag (Sept. 11, ATLAS-HKO, Haleakala). It stays 17 mag for a while. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 3 27.44 -12 56.2 2.047 2.319 93 17.5 18:55 ( 4, 42) Feb. 8 3 32.64 -11 57.4 2.078 2.275 88 17.5 19:01 ( 14, 42) C/2021 S4 ( Tsuchinshan ) Now it is 17.3 mag (Jan. 8, ATLAS-HKO, Haleakala). It stays 18 mag for a while. 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) Feb. 1 7 18.49 41 47.5 6.312 7.162 147 17.6 22:32 (180, 83) Feb. 8 7 16.21 41 38.2 6.381 7.178 141 17.6 22:02 (180, 83) 154P/Brewington It brightened up to 12.0 mag in June (June 13, Ken-ichi Kadota). Now it is 17.9 mag (Jan. 8, D29 Purple Mountain Observatory, XuYi Station). 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) Feb. 1 8 57.51 33 14.3 1.867 2.827 163 17.8 0:15 ( 0, 88) Feb. 8 8 49.29 32 56.9 1.930 2.878 160 17.9 23:34 ( 0, 88) C/2024 V1 ( Borisov ) Now it is 17.7 mag (Jan. 23, Ken-ichi Kadota). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. 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) Feb. 1 9 28.91 62 14.0 1.621 2.417 134 17.9 0:47 (180, 63) Feb. 8 9 5.68 60 1.9 1.596 2.396 134 17.8 23:49 (180, 65) C/2022 U1 ( Leonard ) Now it is 17.8 mag (Nov. 12, ATLAS-HKO, Haleakala). It stays 18 mag for a while. 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) Feb. 1 19 36.00 13 26.1 5.686 4.931 36 17.9 5:32 (264, 16) Feb. 8 19 38.43 13 23.4 5.688 4.960 39 17.9 5:27 (267, 20) 492P/2024 O3 ( LINEAR ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 17.2 mag (Dec. 27, Michael Jager). It will fade out rapidly after this. 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) Feb. 1 9 14.58 32 22.9 1.692 2.654 164 17.9 0:32 ( 0, 87) Feb. 8 9 7.50 32 21.4 1.745 2.701 162 18.0 23:52 ( 0, 87) (468861) 2013 LU28 Now it is 18.0 mag (Aug. 18, Taras Prystavski). 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) Feb. 1 6 56.17 36 26.6 7.995 8.837 146 17.9 22:09 (180, 89) Feb. 8 6 51.26 36 5.7 8.068 8.843 139 17.9 21:37 (180, 89) (431760) 2008 HE It will approach to Sun down to 0.11 a.u. on Mar. 9. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it will be unobservable in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 18 51.11 -19 16.0 1.775 1.047 30 20.5 5:32 (298, 5) Feb. 8 19 23.30 -18 19.9 1.622 0.906 29 20.1 5:27 (296, 4) P/2008 Y12 = P/2014 K3 ( SOHO ) It will approach to Sun down to 0.07 a.u. on Mar. 3. Now it is not observable. It will appear in March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 20 41.32 -19 44.8 1.951 0.972 4 21.3 5:32 (283,-16) Feb. 8 21 3.32 -17 32.5 1.787 0.813 6 20.4 5:27 (281,-15) 323P/SOHO It will approach to Sun down to 0.04 a.u. on Mar. 14. It approaches to Earth down to 0.2 a.u. in mid February, and it will be observable in good condition. It will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Feb. 1 13 40.26 -13 8.6 0.499 1.208 104 21.8 4:55 ( 0, 42) Feb. 8 14 40.49 -19 37.7 0.333 1.070 95 21.1 5:27 ( 0, 35)