Weekly Information about Bright Comets (2025 Mar. 1: South)

Japanese version Home page	Updated on March 2, 2025
Last week North Next week

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 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 remnant is still visible. Now it is 8.5 mag (Feb. 23, Marco Goiato). Fading rapidly. In the Northern Hemisphere, it will never be observable after this. 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) Mar. 1 23 47.64 -40 18.6 2.017 1.337 35 9.8 20:04 ( 50, 13) Mar. 8 0 3.49 -41 0.6 2.130 1.476 37 10.3 19:53 ( 49, 13) 21P/Giacobini-Zinner It is visible at 11 mag in the SWAN images (Jan. 27, Vladimir Bezugly). It will turn to fade out rapidly after the peak. Now it is not observable. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 22 37.51 1 42.8 2.031 1.068 9 10.8 4:19 (284,-22) Mar. 8 23 7.32 2 33.7 2.014 1.039 7 10.7 4:26 (282,-21) 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 12.0 mag (Feb. 24, Osamu Miyazaki). Fading slowly. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it will be unobservable soon. But it will be observable again in March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 20 20.87 13 24.7 3.482 2.825 42 12.1 4:19 (254, -1) Mar. 8 20 23.18 14 31.1 3.512 2.919 46 12.2 4:26 (249, 5) 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 mid March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 22 49.58 -4 58.7 1.142 0.160 2 12.3 20:04 ( 70,-19) Mar. 8 22 43.64 -15 16.4 0.851 0.246 12 13.6 4:26 (293, -6) 29P/Schwassmann-Wachmann 1 Now it is 11.6 mag (Feb. 26, Yoshiaki Yamaguchi). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 9 48.35 10 2.9 5.301 6.265 165 13.6 23:10 (180, 45) Mar. 8 9 45.42 10 14.4 5.337 6.266 157 13.6 22:40 (180, 45) C/2022 E2 ( ATLAS ) Now it is 14.1 mag (Feb. 23, Thomas Lehmann). It stays 14 mag for a while. 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) Mar. 1 1 25.24 49 54.5 4.241 3.961 67 13.8 20:04 (138,-20) Mar. 8 1 26.51 49 12.9 4.362 3.984 61 13.9 19:53 (136,-22) 13P/Olbers It returned for the first time in 68 years. It brightened up to 6.2 mag in early last summer (July 1, Virgilio Gonano). Now it is 14.6 mag (Feb. 8, Ken-ichi Kadota). Fading slowly. 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) Mar. 1 18 31.61 -19 58.2 3.697 3.363 62 13.8 4:19 (267, 40) Mar. 8 18 36.30 -20 24.0 3.664 3.433 68 14.0 4:26 (263, 46) C/2021 G2 ( ATLAS ) Now it is 13.9 mag (Feb. 26, Toshihiko Ikemura, Hirohisa Sato). 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) Mar. 1 15 33.07 -15 29.2 4.802 5.156 105 14.0 4:19 (207, 69) Mar. 8 15 34.21 -14 46.9 4.710 5.170 112 14.0 4:26 (184, 70) (431760) 2008 HE It will approach to Sun down to 0.11 a.u. on Mar. 9. It becomes unobseravble temporarily in March. But it will be observable in good condition in April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 21 48.59 -10 16.9 1.238 0.377 14 17.9 4:19 (286, -5) Mar. 8 23 10.82 -4 14.5 1.134 0.142 0 14.5 4:26 (288,-17) C/2022 N2 ( PanSTARRS ) It is expected to brighten up to 13 mag in autumn, and it will be observable in good condition. Now it is 14.9 mag (Feb. 4, A. Diepvens). It stays 14 mag for a while. In the Northern Hemisphere, it will be unobservable soon. 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) Mar. 1 0 3.22 3 59.6 4.953 4.053 22 14.6 20:04 ( 88,-10) Mar. 8 0 11.42 4 55.0 4.969 4.033 17 14.5 19:53 ( 88,-12) P/2023 S1 Now it is 14.2 mag (Feb. 23, Thomas Lehmann). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 8 36.45 18 12.0 1.736 2.620 146 14.6 21:59 (180, 37) Mar. 8 8 33.96 17 54.8 1.790 2.621 138 14.6 21:29 (180, 37) 48P/Johnson It stays 15 mag for a while. Now it is not observable. It will appear soon in the Southern Hemisphere, or in June in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 22 17.08 -15 49.7 2.970 2.007 10 14.7 4:19 (295, -7) Mar. 8 22 33.96 -14 36.3 2.958 2.007 13 14.6 4:26 (291, -4) C/2022 QE78 ( ATLAS ) Now it is 14.0 mag (Feb. 2, Hiroshi Abe). It stays 15 mag for a while. It will be getting lower gradually after this, and it will be unobservable in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 6 16.10 10 27.4 5.197 5.659 113 14.6 20:04 (171, 44) Mar. 8 6 16.74 11 8.3 5.284 5.647 106 14.6 19:53 (166, 43) 49P/Arend-Rigaux Now it is 14.9 mag (Feb. 19, Michael Jager). Fading slowly. It locates somewhat low in the Northern Hemisphere. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 2 16.44 0 27.1 1.876 1.500 52 14.8 20:04 (105, 19) Mar. 8 2 34.61 3 4.7 1.889 1.479 50 14.6 19:53 (107, 18) 249P/LINEAR It has not been observed yet in this apparition. Fading rapidly. It will be fainter than 18 mag soon. 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) Mar. 1 23 47.96 1 18.5 1.640 0.757 17 14.6 20:04 ( 84,-11) Mar. 8 0 24.40 4 47.6 1.719 0.859 20 15.6 19:53 ( 90, -9) C/2023 C2 ( ATLAS ) It brightened up to 12.7 mag in last summer (Aug. 7, Thomas Lehmann). Now it is 14.2 mag (Dec. 10, Ken-ichi Kadota). It stays 15 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 be observable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 21 42.33 5 43.6 3.535 2.634 21 14.8 4:19 (272,-13) Mar. 8 21 52.28 7 58.1 3.544 2.668 24 14.8 4:26 (267, -9) C/2024 J2 ( Wierzchos ) Brightened rapidly. Now it is 14.6 mag (Jan. 31, Thomas Lehmann). It stays 15 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 22 32.37 24 10.8 2.589 1.827 32 14.8 4:19 (262,-33) Mar. 8 22 51.56 23 11.2 2.624 1.817 28 14.8 4:26 (261,-29) C/2024 L5 ( ATLAS ) Now it is 15.3 mag (Feb. 26, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 14 33.65 -30 55.2 2.915 3.433 113 15.0 4:00 (180, 86) Mar. 8 14 19.78 -30 27.3 2.788 3.432 123 14.9 3:18 (180, 86) 496P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 15.5 mag (Feb. 19, Michael Jager). Fading 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) Mar. 1 3 48.39 30 3.9 1.445 1.624 81 15.3 20:04 (143, 13) Mar. 8 4 7.67 31 36.5 1.489 1.621 78 15.3 19:53 (144, 12) (465402) 2008 HW1 It has not been observed yet in this apparition. It approached to Sun down to 0.1 a.u. on Jan. 29. It approaches to Earth down to 0.1 a.u. in early March. It brightens up to 15.5 mag, but it will turn to fade out rapidly after that. It will be fainter than 18 mag soon. 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) Mar. 1 20 7.89 33 42.4 0.123 0.928 56 17.4 4:19 (238,-10) Mar. 8 12 3.68 65 4.0 0.145 1.071 119 15.3 1:18 (180,-11) 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 (Feb. 5, 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) Mar. 1 3 35.66 -67 41.7 15.598 15.391 76 15.3 20:04 ( 25, 48) Mar. 8 3 37.92 -67 21.4 15.571 15.368 76 15.3 19:53 ( 26, 47) 217P/LINEAR It brightens up to 13 mag in early summer. But the condition in this apparition is bad. Brightening gradually. In the Northern Hemisphere, it is not observable now. It stays extremely low in the Southern Hemisphere. But it will become high in autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 21 26.93 -15 12.5 2.501 1.616 21 15.7 4:19 (287, 2) Mar. 8 21 48.48 -14 1.2 2.431 1.564 22 15.4 4:26 (284, 4) C/2023 Q1 ( PanSTARRS ) Now it is 15.6 mag (Feb. 18, 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) Mar. 1 7 45.66 65 31.5 2.190 2.749 114 15.5 21:10 (180,-10) Mar. 8 7 49.76 63 21.5 2.259 2.776 111 15.6 20:46 (180, -8) C/2023 T3 ( Fuls ) Now it is 15.9 mag (Feb. 19, ATLAS Chile). 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) Mar. 1 13 21.79 -36 0.4 2.922 3.562 123 15.5 2:48 ( 0, 89) Mar. 8 13 21.82 -36 4.2 2.859 3.569 129 15.5 2:20 ( 0, 89) 43P/Wolf-Harrington Now it is 15.9 mag (Feb. 23, Thomas Lehmann). 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) Mar. 1 2 42.78 16 2.0 2.988 2.686 62 15.6 20:04 (122, 14) Mar. 8 2 52.95 16 30.8 3.050 2.667 58 15.6 19:53 (121, 12) C/2023 H5 ( Lemmon ) Now it is 14.8 mag (Feb. 20, 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 never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 12 5.97 57 10.6 3.746 4.428 128 15.7 1:32 (180, -2) Mar. 8 11 57.71 59 8.0 3.768 4.415 125 15.7 0:56 (180, -4) (3200) Phaethon Parent asteroid of Geminids meteor shower. Now it is 16.0 mag (Nov. 30, Katsumi Yoshimoto). It brightens up to 13.5 mag, but it will turn to fade out rapidly after that. It will be fainter than 18 mag in June. It will be unobservable soon. But it will be observable again in May in the Northern Hemisphere, or in June in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 1 35.10 8 32.7 1.042 0.777 44 16.1 20:04 (105, 6) Mar. 8 1 33.67 6 45.5 0.991 0.628 36 15.8 19:53 (101, 3) C/2024 A1 ( ATLAS ) Now it is 15.5 mag (Feb. 26, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag for a while. It will be getting lower gradually after this, and it will be unobservable in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 6 36.61 -6 35.6 3.448 3.982 115 15.9 20:04 (177, 61) Mar. 8 6 33.52 -4 18.7 3.525 3.968 109 15.9 19:53 (168, 59) C/2023 F3 ( ATLAS ) Now it is 16.4 mag (Feb. 26, ATLAS Chile). It stays 16 mag for a while. In the Northern Hemisphere, it will be unobservable in June. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 12 42.08 -47 26.9 4.638 5.195 119 16.0 2:08 ( 0, 77) Mar. 8 12 29.76 -47 9.3 4.561 5.197 125 16.0 1:29 ( 0, 78) P/2025 A5 ( 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 16.5 mag (Feb. 21, Michael Jager). It will turn to fade out rapidly after the peak. 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 be unobservable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 3 13.90 15 37.5 0.389 0.932 69 16.1 20:04 (127, 19) Mar. 8 3 30.46 27 34.2 0.360 0.933 69 16.0 19:53 (136, 10) 65P/Gunn Now it is 16.3 mag (Feb. 5, Thomas Lehmann). Brightening slowly. 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) Mar. 1 18 1.66 -24 58.3 3.165 2.974 69 16.2 4:19 (269, 48) Mar. 8 18 10.84 -25 13.3 3.069 2.968 74 16.2 4:26 (266, 54) 472P/2023 RL75 ( NEAT-LINEAR ) Now it is 15.8 mag (Feb. 18, Thomas Lehmann). Fading gradually. It will be fainter than 18 mag in June. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 6 10.17 11 6.8 3.260 3.741 111 16.2 20:04 (170, 43) Mar. 8 6 12.68 11 25.1 3.373 3.762 105 16.3 19:53 (165, 42) 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 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) Mar. 1 6 39.82 -24 5.2 6.242 6.674 111 16.2 20:04 (178, 79) Mar. 8 6 39.91 -23 3.2 6.297 6.666 107 16.2 19:53 (160, 77) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 15.2 mag (Feb. 23, Thomas Lehmann). It stays 17 mag for a while. It will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 5 22.22 23 4.1 7.838 8.086 101 16.3 20:04 (159, 29) Mar. 8 5 21.86 23 15.9 8.010 8.138 93 16.4 19:53 (155, 27) C/2024 B1 ( Lemmon ) It brightened up to 13.1 mag in autumn (Nov. 1, Thomas Lehmann). Now it is 16.0 mag (Feb. 26, Toshihiko Ikemura, Hirohisa Sato). Fading gradually. It will be fainter than 18 mag in June. 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) Mar. 1 18 4.91 14 31.2 2.568 2.475 73 16.4 4:19 (231, 23) Mar. 8 18 7.10 14 17.3 2.547 2.539 78 16.5 4:26 (224, 28) C/2024 J3 ( ATLAS ) It will brighten up to 13 mag in 2026. Now it is 17.1 mag (Sept. 21, ATLAS Chile). Brightening slowly. 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) Mar. 1 19 35.29 -26 12.2 7.115 6.510 49 16.6 4:19 (283, 30) Mar. 8 19 38.36 -25 43.9 6.980 6.467 55 16.5 4:26 (278, 36) 105P/Singer Brewster 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) Mar. 1 18 34.57 -16 5.8 2.340 2.072 62 16.7 4:19 (264, 37) Mar. 8 18 48.95 -15 27.0 2.282 2.080 65 16.7 4:26 (259, 41) 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 16.4 mag (Feb. 4, ATLAS Chile). It stays 17 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) Mar. 1 5 33.17 -30 32.4 6.466 6.641 95 16.7 20:04 (103, 75) Mar. 8 5 32.75 -29 18.4 6.585 6.689 91 16.7 19:53 (102, 71) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. Now it is 15.8 mag (Dec. 7, A. Pearce). It stays 17 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) Mar. 1 21 51.20 -60 18.6 7.366 6.826 53 16.7 4:19 (328, 23) Mar. 8 21 55.94 -60 29.8 7.363 6.879 57 16.7 4:26 (327, 27) 12P/Pons-Brooks It returns for the first time in 70 years. It brightened up to 3.7 mag in early April in 2024 (Apr. 6, 2024, Jose Guilherme Aguiar). Now it is 17.2 mag (Feb. 7, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag in June. 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) Mar. 1 17 16.52 -50 11.8 4.338 4.268 79 16.7 4:19 (312, 60) Mar. 8 17 17.23 -50 29.9 4.300 4.337 85 16.8 4:26 (317, 65) C/2019 U5 ( PanSTARRS ) Now it is 16.0 mag (Feb. 18, ATLAS Chile). 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) Mar. 1 5 29.24 -45 27.6 6.804 6.906 91 16.7 20:04 ( 48, 73) Mar. 8 5 26.42 -44 28.3 6.900 6.950 88 16.8 19:53 ( 55, 70) 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) Mar. 1 12 28.16 -60 3.9 9.365 9.738 109 16.8 1:54 ( 0, 65) Mar. 8 12 24.54 -60 14.3 9.347 9.782 113 16.8 1:23 ( 0, 65) 323P/SOHO Now it is 20.4 mag (Feb. 8, Steward Observatory, Mt. Lemmon Station). It will approach to Sun down to 0.04 a.u. on Mar. 14. It approached to Earth down to 0.2 a.u. in mid February, and it was observed in good condition. It is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 22 20.93 -13 3.3 0.437 0.562 8 18.9 4:19 (293, -9) Mar. 8 22 58.27 -8 5.8 0.669 0.331 4 16.9 4:26 (290,-13) 195P/Hill Now it is 16.7 mag (Feb. 18, A. Diepvens). 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) Mar. 1 6 19.63 -7 56.0 4.039 4.498 111 17.0 20:04 (168, 62) Mar. 8 6 20.05 -7 35.8 4.120 4.493 105 17.0 19:53 (160, 61) 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. 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) Mar. 1 0 54.16 -56 49.5 11.153 10.616 55 17.0 20:04 ( 39, 30) Mar. 8 0 56.71 -56 13.0 11.160 10.625 55 17.0 19:53 ( 39, 28) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 17.1 mag (Feb. 13, ATLAS-HKO, Haleakala). Brightening gradually. 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) Mar. 1 18 12.51 44 24.4 4.769 4.709 80 17.1 4:19 (213, -1) Mar. 8 18 17.01 45 19.5 4.659 4.635 82 17.0 4:26 (208, 1) C/2024 G2 ( ATLAS ) Now it is 17.1 mag (Feb. 22, ATLAS Chile). It stays 17 mag for a while. It locates somewhat 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) Mar. 1 12 20.87 -47 2.5 4.820 5.404 121 17.2 1:47 ( 0, 78) Mar. 8 12 12.43 -46 12.8 4.739 5.397 127 17.2 1:11 ( 0, 79) P/2025 C1 ( ATLAS ) Bright new periodic comet. It seems to have brightened temporarily in outburst. Now it is 16.9 mag (Feb. 26, 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) Mar. 1 14 25.46 -16 38.4 2.110 2.753 120 17.2 3:51 (180, 72) Mar. 8 14 26.31 -17 6.6 2.036 2.755 127 17.5 3:24 (180, 72) 32P/Comas Sola It brightened up to 13.5 mag in last winter (Dec. 5, 2023, Chris Wyatt). Now it is 18.0 mag (Feb. 22, 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) Mar. 1 14 31.17 -8 3.1 2.624 3.260 122 17.3 3:57 (180, 63) Mar. 8 14 29.73 -7 57.3 2.577 3.297 129 17.3 3:28 (180, 63) 276P/Vorobjov Now it is 17.3 mag (Feb. 8, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. It will be unobservable in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 3 8.84 10 20.7 4.185 3.916 67 17.4 20:04 (122, 22) Mar. 8 3 15.02 10 43.1 4.282 3.919 62 17.5 19:53 (120, 20) 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 17.5 mag (Feb. 14, Ken-ichi Kadota). Fading slowly. 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) Mar. 1 2 29.03 54 55.2 2.099 2.121 77 17.5 20:04 (148,-15) Mar. 8 2 36.05 56 20.9 2.227 2.172 73 17.6 19:53 (148,-17) C/2022 L2 ( ATLAS ) Now it is 16.8 mag (Feb. 19, ATLAS Chile). Fading slowly. It will be fainter than 18 mag soon. 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) Mar. 1 6 26.36 -33 42.2 4.053 4.426 105 17.5 20:04 (112, 86) Mar. 8 6 20.39 -31 55.6 4.173 4.477 101 17.6 19:53 (109, 81) (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 Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in June. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 3 55.66 -8 38.3 2.161 2.151 76 17.5 20:04 (115, 44) Mar. 8 4 5.62 -7 27.9 2.185 2.113 72 17.5 19:53 (115, 42) 242P/Spahr Now it is 17.6 mag (Feb. 25, Toshihiko Ikemura, Hirohisa Sato). 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 May. In the Southern Hemisphere, it will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 1 4 1.51 -10 18.9 4.080 3.984 77 17.5 20:04 (115, 46) Mar. 8 4 6.44 -9 30.0 4.167 3.986 72 17.6 19:53 (113, 43) C/2024 V1 ( Borisov ) Now it is 17.4 mag (Feb. 24, ATLAS-MLO, Mauna Loa). Fading slowly. 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) Mar. 1 8 17.40 50 11.8 1.609 2.346 127 17.7 21:40 (180, 5) Mar. 8 8 9.12 46 20.4 1.644 2.335 122 17.8 21:04 (180, 9) 30P/Reinmuth 1 It is fading very rapidly after the perihelion passage. Now it is 17.7 mag (Feb. 8, ATLAS-MLO, Mauna Loa). Fading gradually. 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) Mar. 1 15 6.56 -6 35.7 1.902 2.474 113 17.8 4:19 (187, 62) Mar. 8 15 7.88 -6 14.9 1.858 2.511 120 17.8 4:06 (180, 61) C/2021 S4 ( Tsuchinshan ) Now it is 17.3 mag (Feb. 4, 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) Mar. 1 7 12.19 40 55.6 6.653 7.228 122 17.8 20:35 (180, 14) Mar. 8 7 11.93 40 37.6 6.762 7.245 115 17.9 20:08 (180, 14) 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 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) Mar. 1 19 43.90 13 37.1 5.628 5.052 50 17.9 4:19 (249, 6) Mar. 8 19 44.96 13 47.7 5.587 5.083 55 17.9 4:26 (243, 12)