Weekly Information about Bright Comets (2025 Mar. 8: North)

Japanese version Home page	Updated on March 8, 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.

323P/SOHO Now it is 20.4 mag (Feb. 8, Steward Observatory, Mt. Lemmon Station). It approaches 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. 8 22 58.27 -8 5.7 0.670 0.330 4 16.9 4:56 (268,-17) Mar. 15 23 49.65 -0 43.5 1.045 0.074 3 9.4 19:31 (100,-13) 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. 8 0 3.49 -41 0.6 2.130 1.476 37 10.3 19:25 ( 57,-26) Mar. 15 0 18.41 -41 40.3 2.231 1.608 40 10.8 19:31 ( 58,-30) 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. 8 23 7.28 2 33.7 2.014 1.039 7 10.7 4:56 (258,-12) Mar. 15 23 37.51 3 23.0 2.005 1.020 5 10.6 4:47 (255,-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 12.0 mag (Feb. 24, Osamu Miyazaki). Fading slowly. In the Northern Hemisphere, it will be getting higher gradually. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 20 23.19 14 31.1 3.512 2.919 46 12.2 4:56 (271, 28) Mar. 15 20 24.84 15 40.2 3.532 3.011 51 12.3 4:47 (272, 32) P/2008 Y12 = P/2014 K3 ( SOHO ) It approached to Sun down to 0.07 a.u. on Mar. 3. It will fade out rapidly after this. It will be fainter than 18 mag soon. Now it is not observable. It will appear soon 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) Mar. 8 22 43.64 -15 16.4 0.851 0.246 12 13.6 4:56 (276,-18) Mar. 15 22 17.43 -24 18.2 0.877 0.491 29 16.6 4:47 (290,-14) 29P/Schwassmann-Wachmann 1 Now it is 12.6 mag (Mar. 3, Toru Yusa). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 9 45.43 10 14.3 5.337 6.266 157 13.6 22:40 ( 0, 65) Mar. 15 9 42.78 10 24.8 5.386 6.267 150 13.6 22:10 ( 0, 65) C/2022 E2 ( ATLAS ) Now it is 14.1 mag (Feb. 23, Thomas Lehmann). It stays 14 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 1 26.53 49 12.8 4.362 3.984 61 13.9 19:25 (130, 35) Mar. 15 1 28.31 48 41.0 4.476 4.009 56 14.0 19:31 (131, 29) 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. 8 18 36.29 -20 24.0 3.664 3.433 68 14.0 4:56 (320, 23) Mar. 15 18 40.19 -20 50.5 3.626 3.502 74 14.1 4:47 (323, 25) 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. 8 15 34.21 -14 46.9 4.710 5.170 112 14.0 4:32 ( 0, 40) Mar. 15 15 34.71 -14 0.9 4.624 5.185 119 14.0 4:05 ( 0, 41) (431760) 2008 HE It approaches 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. 8 23 10.82 -4 14.5 1.134 0.142 0 14.5 4:56 (263,-17) Mar. 15 0 21.78 -0 58.5 0.798 0.257 10 20.6 19:31 ( 95, -8) 49P/Arend-Rigaux Now it is 14.3 mag (Mar. 2, Roland Fichtl). 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. 8 2 34.61 3 4.7 1.889 1.479 50 14.6 19:25 ( 73, 27) Mar. 15 2 53.56 5 41.0 1.903 1.462 49 14.5 19:31 ( 78, 26) 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. 8 22 33.96 -14 36.3 2.958 2.007 13 14.6 4:56 (277,-15) Mar. 15 22 50.62 -13 20.4 2.944 2.009 16 14.5 4:47 (276,-14) 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. Now it is not observable. It will appear in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 0 11.41 4 55.0 4.969 4.033 17 14.5 19:25 ( 97, -1) Mar. 15 0 19.76 5 51.4 4.977 4.015 12 14.5 19:31 (101, -5) 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. 8 8 33.96 17 54.8 1.790 2.621 138 14.6 21:29 ( 0, 73) Mar. 15 8 32.80 17 34.7 1.852 2.622 131 14.7 21:00 ( 0, 72) 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. 8 6 16.73 11 8.4 5.284 5.647 106 14.6 19:25 ( 8, 66) Mar. 15 6 17.96 11 48.3 5.376 5.634 99 14.7 19:31 ( 27, 65) 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. 8 21 52.28 7 58.1 3.544 2.668 24 14.8 4:56 (264, 6) Mar. 15 22 1.97 10 14.2 3.550 2.704 27 14.9 4:47 (264, 9) 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. 8 14 19.78 -30 27.2 2.789 3.432 123 14.9 3:18 ( 0, 24) Mar. 15 14 3.84 -29 42.4 2.677 3.433 132 14.8 2:35 ( 0, 25) C/2024 J2 ( Wierzchos ) Brightened rapidly. Now it is 14.6 mag (Jan. 31, Thomas Lehmann). Fading slowly. 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. 8 22 51.56 23 11.2 2.624 1.817 28 14.8 4:56 (244, 3) Mar. 15 23 9.86 22 12.4 2.658 1.812 25 14.8 4:47 (244, 3) 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. 8 21 48.48 -14 1.2 2.431 1.564 22 15.4 4:56 (283, -6) Mar. 15 22 10.62 -12 40.5 2.365 1.514 24 15.2 4:47 (281, -6) 496P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 15.2 mag (Mar. 2, A. Diepvens). 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. 8 4 7.68 31 36.5 1.489 1.621 78 15.3 19:25 ( 94, 61) Mar. 15 4 28.34 32 57.9 1.534 1.622 76 15.3 19:31 ( 98, 58) 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. 8 3 37.92 -67 21.5 15.571 15.368 76 15.3 19:25 ( 16,-17) Mar. 15 3 40.63 -67 2.1 15.542 15.345 76 15.3 19:31 ( 19,-19) (465402) 2008 HW1 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. Now it is 15.5 mag (Mar. 3, Guy Wells). 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 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. 8 12 3.68 65 4.0 0.145 1.071 119 15.3 1:18 (180, 59) Mar. 15 10 17.56 44 15.9 0.276 1.204 134 16.5 22:43 (180, 82) (3200) Phaethon Parent asteroid of Geminids meteor shower. Now it is 15.9 mag (Jan. 12, E. Prosperi, M. Jaeger). 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. 8 1 33.67 6 45.5 0.991 0.628 36 15.8 19:25 ( 86, 17) Mar. 15 1 25.47 4 13.4 0.919 0.458 27 15.4 19:31 ( 90, 7) C/2023 T3 ( Fuls ) Now it is 15.4 mag (Feb. 28, Andrew Pearce). 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. 8 13 21.86 -36 4.2 2.859 3.569 129 15.5 2:20 ( 0, 19) Mar. 15 13 21.14 -35 58.1 2.803 3.576 134 15.5 1:52 ( 0, 19) 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. 8 2 52.95 16 30.8 3.050 2.667 58 15.6 19:25 ( 83, 39) Mar. 15 3 3.66 17 0.5 3.107 2.648 53 15.6 19:31 ( 88, 34) C/2023 Q1 ( PanSTARRS ) Now it is 15.6 mag (Feb. 18, Michael Jager). Fading gradually. It will be fainter than 18 mag in July. 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. 8 7 49.75 63 21.4 2.259 2.776 111 15.6 20:46 (180, 62) Mar. 15 7 55.25 61 8.2 2.336 2.804 107 15.7 20:24 (180, 64) 249P/LINEAR It has not been observed yet in this apparition. Fading rapidly. It will be fainter than 18 mag soon. 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) Mar. 8 0 24.40 4 47.6 1.719 0.859 20 15.6 19:25 ( 95, 2) Mar. 15 0 57.38 7 48.2 1.810 0.963 21 16.5 19:31 ( 97, 4) 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. 8 11 57.72 59 8.0 3.768 4.415 125 15.7 0:56 (180, 66) Mar. 15 11 48.34 60 51.0 3.802 4.403 121 15.7 0:20 (180, 64) C/2023 F3 ( ATLAS ) Now it is 15.9 mag (Feb. 28, Andrew Pearce). 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. 8 12 29.76 -47 9.3 4.561 5.197 125 16.0 1:29 ( 0, 8) Mar. 15 12 16.91 -46 37.6 4.500 5.200 130 15.9 0:48 ( 0, 8) 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. 8 6 33.51 -4 18.7 3.525 3.968 109 15.9 19:29 ( 0, 51) Mar. 15 6 31.44 -2 6.4 3.612 3.955 102 16.0 19:31 ( 13, 52) P/2025 A5 ( Catalina ) It approaches to Earth down to 0.3 a.u. in March. 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. 8 3 30.46 27 34.2 0.360 0.933 69 16.0 19:25 ( 93, 52) Mar. 15 3 51.92 40 47.9 0.344 0.944 71 15.9 19:31 (115, 53) 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. 8 18 10.84 -25 13.3 3.069 2.968 74 16.2 4:56 (328, 22) Mar. 15 18 19.50 -25 27.5 2.971 2.963 79 16.1 4:47 (330, 23) C/2022 R6 ( PanSTARRS ) Now it is 16.1 mag (Feb. 24, ATLAS Chile). 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. 8 6 39.91 -23 3.2 6.297 6.666 107 16.2 19:35 ( 0, 32) Mar. 15 6 40.52 -22 0.6 6.358 6.658 103 16.2 19:31 ( 6, 33) 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. In the Northern Hemisphere, it will be getting lower 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) Mar. 8 6 12.68 11 25.1 3.373 3.762 105 16.3 19:25 ( 10, 66) Mar. 15 6 15.95 11 42.6 3.489 3.782 99 16.4 19:31 ( 27, 64) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 16.1 mag (Mar. 3, A. Diepvens). 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. 8 5 21.89 23 15.2 8.012 8.140 93 16.4 19:25 ( 56, 71) Mar. 15 5 21.98 23 26.9 8.185 8.193 86 16.4 19:31 ( 69, 65) C/2024 J3 ( ATLAS ) It will brighten up to 13 mag in 2026. Now it is 16.9 mag (Mar. 5, 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. 8 19 38.36 -25 43.9 6.980 6.467 55 16.5 4:56 (311, 10) Mar. 15 19 41.09 -25 15.6 6.838 6.425 61 16.5 4:47 (314, 13) C/2024 B1 ( Lemmon ) It brightened up to 13.1 mag in autumn (Nov. 1, Thomas Lehmann). Now it is 16.2 mag (Mar. 5, ATLAS-MLO, Mauna Loa). Fading gradually. It will be fainter than 18 mag in June. In the Northern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 18 7.10 14 17.3 2.547 2.539 78 16.5 4:56 (298, 55) Mar. 15 18 8.07 14 5.7 2.520 2.603 83 16.6 4:47 (303, 57) 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. 8 18 48.95 -15 27.0 2.282 2.080 65 16.7 4:56 (314, 25) Mar. 15 19 2.71 -14 43.3 2.223 2.089 69 16.6 4:47 (314, 27) 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. 8 21 55.91 -60 29.9 7.363 6.879 57 16.7 4:56 (325,-30) Mar. 15 22 0.41 -60 45.8 7.352 6.932 61 16.7 4:47 (326,-28) 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 17.3 mag (Feb. 25, Ken-ichi Kadota). 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. 8 5 32.75 -29 18.3 6.585 6.689 91 16.7 19:25 ( 14, 24) Mar. 15 5 32.92 -28 6.1 6.706 6.738 87 16.8 19:31 ( 22, 23) 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. 8 17 17.23 -50 29.9 4.300 4.337 85 16.8 4:56 (348, 3) Mar. 15 17 16.73 -50 47.7 4.261 4.405 91 16.8 4:47 (350, 3) C/2019 U5 ( PanSTARRS ) Now it is 16.0 mag (Feb. 22, 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. 8 5 26.42 -44 28.4 6.899 6.950 88 16.8 19:25 ( 11, 9) Mar. 15 5 24.42 -43 29.8 6.997 6.995 85 16.9 19:31 ( 18, 8) 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. 8 12 24.56 -60 14.2 9.347 9.782 113 16.8 1:23 ( 0, -5) Mar. 15 12 20.68 -60 19.6 9.336 9.826 116 16.8 0:52 ( 0, -5) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 17.0 mag (Mar. 3, W. Hasubick). Brightening gradually. 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) Mar. 8 18 17.01 45 19.5 4.659 4.635 82 17.0 4:56 (238, 62) Mar. 15 18 20.87 46 19.4 4.548 4.561 84 16.9 4:47 (235, 64) 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. 8 6 20.05 -7 35.8 4.120 4.493 105 17.0 19:25 ( 3, 47) Mar. 15 6 21.21 -7 15.0 4.205 4.488 100 17.0 19:31 ( 15, 47) 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. 8 12 12.46 -46 12.9 4.740 5.397 127 17.2 1:11 ( 0, 9) Mar. 15 12 3.78 -45 11.0 4.671 5.390 132 17.2 0:35 ( 0, 10) 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. 8 14 29.73 -7 57.3 2.577 3.297 129 17.3 3:28 ( 0, 47) Mar. 15 14 27.27 -7 47.9 2.539 3.335 136 17.3 2:58 ( 0, 47) P/2025 C1 ( ATLAS ) Bright new periodic comet. It brightened up to 15.9 mag (Feb. 7, P. Sicoli). It seems to have brightened temporarily in outburst. Now it is 17.1 mag (Mar. 3, ATLAS Chile). 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. 8 14 26.29 -17 6.6 2.033 2.752 127 17.4 3:24 ( 0, 38) Mar. 15 14 25.93 -17 30.0 1.966 2.755 134 17.7 2:56 ( 0, 37) 47P/Ashbrook-Jackson Brightening slowly. In the Northern Hemisphere, it is not observable now, but it will appear in April. 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. 8 21 14.18 -24 54.9 3.863 3.101 34 17.6 4:56 (297, -6) Mar. 15 21 25.05 -24 4.6 3.793 3.085 39 17.5 4:47 (297, -4) 276P/Vorobjov Now it is 17.5 mag (Feb. 14, ATLAS-HKO, Haleakala). 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. 8 3 15.02 10 43.1 4.282 3.919 62 17.5 19:25 ( 73, 40) Mar. 15 3 21.62 11 6.2 4.375 3.922 56 17.6 19:31 ( 79, 35) (308607) 2005 WY3 Peculiar asteroid moving along a cometary orbit. Now it is 17.4 mag (Jan. 11, 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 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. 8 4 5.62 -7 27.9 2.185 2.113 72 17.5 19:25 ( 46, 36) Mar. 15 4 16.63 -6 17.1 2.208 2.076 69 17.5 19:31 ( 52, 33) 362P/(457175) 2008 GO98 Now it is 17.4 mag (Sept. 20, Taras Prystavski). 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) Mar. 8 20 31.22 -6 12.1 3.799 3.109 40 17.6 4:56 (288, 14) Mar. 15 20 40.61 -5 26.5 3.752 3.123 44 17.5 4:47 (289, 16) 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. 8 4 6.44 -9 30.0 4.167 3.986 72 17.6 19:25 ( 44, 34) Mar. 15 4 11.89 -8 42.3 4.252 3.989 68 17.6 19:31 ( 51, 31) 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 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) Mar. 8 2 36.06 56 20.8 2.227 2.172 73 17.6 19:25 (138, 46) Mar. 15 2 44.68 57 46.7 2.350 2.225 70 17.7 19:31 (140, 42) 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. 8 6 20.39 -31 55.6 4.173 4.477 101 17.6 19:25 ( 2, 23) Mar. 15 6 15.84 -30 11.9 4.301 4.528 96 17.7 19:31 ( 11, 24) 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. 8 8 9.42 46 23.8 1.648 2.338 122 17.8 21:04 (180, 79) Mar. 15 8 4.37 42 30.8 1.696 2.329 117 17.8 20:32 (180, 83) 30P/Reinmuth 1 It is fading very rapidly after the perihelion passage. Now it is 18.3 mag (Feb. 28, Toshihiko Ikemura, Hirohisa Sato). 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. 8 15 7.31 -6 11.5 1.856 2.510 120 17.8 4:05 ( 0, 49) Mar. 15 15 7.19 -5 45.9 1.817 2.547 127 17.9 3:38 ( 0, 49) 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. 8 7 11.93 40 37.6 6.762 7.245 115 17.9 20:08 (180, 84) Mar. 15 7 12.23 40 18.4 6.876 7.262 109 17.9 19:40 (180, 85) C/2023 V1 ( Lemmon ) Now it is 18.1 mag (Oct. 11, Erik Bryssinck). 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 8 19 37.36 50 29.7 5.400 5.184 72 18.0 4:56 (231, 48) Mar. 15 19 36.87 51 37.1 5.357 5.174 74 17.9 4:47 (229, 51) 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. 8 19 44.96 13 47.7 5.587 5.083 55 17.9 4:56 (278, 35) Mar. 15 19 45.54 14 0.6 5.537 5.115 60 17.9 4:47 (280, 39)