Weekly Information about Bright Comets (2025 Mar. 22: South)

Japanese version Home page	Updated on March 26, 2025
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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.

21P/Giacobini-Zinner It is visible at 11 mag in the SWAN images (Jan. 27, Vladimir Bezugly). It will fade out rapidly after this. Now it is not observable. It will appear in July in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 0 7.98 4 9.3 2.002 1.010 3 10.6 19:32 ( 82,-19) Mar. 29 0 38.48 4 51.3 2.007 1.010 2 10.7 19:22 ( 84,-17) 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. 22 0 32.64 -42 20.4 2.321 1.736 43 11.2 19:32 ( 47, 13) Mar. 29 0 46.35 -43 2.9 2.401 1.860 46 11.6 19:22 ( 46, 13) 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 11.9 mag (Mar. 9, Ken-ichi Kadota). Fading slowly. 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. 22 20 25.79 16 51.6 3.542 3.102 56 12.4 4:40 (236, 15) Mar. 29 20 25.97 18 5.0 3.545 3.192 61 12.5 4:46 (229, 20) (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. Now it is not observable. It will appear 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. 22 0 57.48 0 17.0 0.843 0.261 13 15.8 19:32 ( 85, -8) Mar. 29 23 57.89 -0 20.6 0.971 0.154 8 13.6 4:46 (277,-10) 29P/Schwassmann-Wachmann 1 Now it is 11.6 mag (Mar. 9, Yoshiaki Yamaguchi). In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in July. 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. 22 9 40.48 10 33.9 5.448 6.268 142 13.7 21:40 (180, 45) Mar. 29 9 38.60 10 41.3 5.522 6.269 135 13.7 21:11 (180, 44) C/2021 G2 ( ATLAS ) Now it is 13.8 mag (Mar. 8, Hiroshi Abe). 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. 22 15 34.59 -13 11.4 4.545 5.200 126 13.9 3:37 (180, 68) Mar. 29 15 33.85 -12 18.9 4.476 5.216 133 13.9 3:09 (180, 67) C/2022 E2 ( ATLAS ) Now it is 13.7 mag (Feb. 28, Hiroshi Abe). It stays 15 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. 22 1 30.48 48 18.0 4.582 4.034 51 14.1 19:32 (133,-26) Mar. 29 1 32.92 48 3.1 4.678 4.060 46 14.2 19:22 (131,-28) 49P/Arend-Rigaux Now it is 14.3 mag (Mar. 2, Roland Fichtl). Fading gradually. In the Northern Hemisphere, it will be unobservable in July. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 3 13.28 8 14.4 1.919 1.448 47 14.4 19:32 (112, 15) Mar. 29 3 33.76 10 42.9 1.938 1.438 46 14.3 19:22 (115, 14) 48P/Johnson It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in June. It locates somewhat low in the Southern Hemisphere. But it will become high in summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 23 7.06 -12 2.4 2.928 2.012 19 14.5 4:40 (284, 1) Mar. 29 23 23.27 -10 43.0 2.911 2.017 21 14.4 4:46 (280, 4) 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, Alfons 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. 22 0 28.23 6 48.6 4.979 3.997 8 14.5 19:32 ( 87,-17) Mar. 29 0 36.82 7 46.4 4.973 3.979 4 14.5 19:22 ( 86,-19) 217P/LINEAR It brightens up to 13 mag in early summer. But the condition in this apparition is bad. Brightening slowly. In the Northern Hemisphere, it is not observable now, but it will appear in July. 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. 22 22 33.36 -11 10.6 2.302 1.467 25 14.9 4:40 (278, 7) Mar. 29 22 56.68 -9 31.8 2.243 1.422 26 14.6 4:46 (276, 8) C/2022 QE78 ( ATLAS ) Now it is 14.7 mag (Feb. 27, Ken-ichi Kadota). 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. 22 6 19.77 12 26.8 5.472 5.622 93 14.7 19:32 (157, 40) Mar. 29 6 22.14 13 3.7 5.568 5.611 87 14.7 19:22 (153, 38) P/2023 S1 Now it is 14.2 mag (Mar. 4, 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. 22 8 32.97 17 11.9 1.923 2.624 124 14.8 20:33 (180, 38) Mar. 29 8 34.44 16 46.3 2.000 2.627 118 14.9 20:07 (180, 38) 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. 22 23 27.32 21 14.3 2.690 1.811 22 14.9 4:40 (259,-22) Mar. 29 23 44.01 20 16.4 2.717 1.815 20 14.9 4:46 (257,-18) 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. 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) Mar. 22 22 11.41 12 31.5 3.552 2.741 30 14.9 4:40 (256, -2) Mar. 29 22 20.57 14 50.1 3.551 2.780 33 15.0 4:46 (251, 1) C/2024 L5 ( ATLAS ) Now it is 15.2 mag (Mar. 9, Ken-ichi Kadota). Fading slowly. 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) Mar. 22 13 46.12 -28 37.6 2.587 3.434 142 15.1 1:50 (180, 84) Mar. 29 13 27.10 -27 10.9 2.520 3.437 152 15.0 1:04 (180, 82) 496P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 15.3 mag (Mar. 10, Alfons Diepvens). Fading gradually. It will be fainter than 18 mag in July. 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. 22 4 50.22 34 6.3 1.582 1.627 74 15.3 19:32 (147, 11) Mar. 29 5 13.11 34 59.8 1.632 1.635 72 15.3 19:22 (149, 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 (Mar. 1, 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. 22 3 43.75 -66 43.9 15.509 15.321 77 15.3 19:32 ( 28, 45) Mar. 29 3 47.26 -66 27.0 15.475 15.298 77 15.3 19:22 ( 29, 43) C/2023 T3 ( Fuls ) Now it is 15.6 mag (Mar. 9, 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) Mar. 22 13 19.75 -35 41.7 2.757 3.584 140 15.4 1:23 ( 0, 89) Mar. 29 13 17.86 -35 15.0 2.721 3.594 146 15.4 0:54 ( 0, 90) 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. 22 3 14.86 17 30.3 3.161 2.629 49 15.6 19:32 (120, 10) Mar. 29 3 26.53 17 59.5 3.211 2.612 45 15.5 19:22 (119, 8) C/2023 H5 ( Lemmon ) Now it is 14.9 mag (Mar. 7, 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. 22 11 38.12 62 18.3 3.849 4.392 116 15.8 23:37 (180, -7) Mar. 29 11 27.47 63 29.1 3.905 4.381 112 15.8 22:59 (180, -8) C/2023 Q1 ( PanSTARRS ) It brightened up to 13.8 mag in winter (Dec. 30, Thomas Lehmann). Now it is 16.1 mag (Mar. 9, Ken-ichi Kadota). 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. 22 8 1.83 58 53.5 2.420 2.834 104 15.8 20:03 (180, -4) Mar. 29 8 9.22 56 38.6 2.509 2.865 100 16.0 19:43 (180, -1) 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. 22 12 3.88 -45 51.3 4.454 5.203 134 15.9 0:08 ( 0, 79) Mar. 29 11 51.05 -44 50.6 4.427 5.207 137 15.9 23:22 ( 0, 80) 65P/Gunn Now it is 16.7 mag (Mar. 4, 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. 22 18 27.56 -25 41.6 2.872 2.957 85 16.0 4:40 (256, 65) Mar. 29 18 34.94 -25 56.0 2.773 2.953 90 15.9 4:46 (249, 70) 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. 22 6 30.33 0 0.0 3.706 3.944 96 16.0 19:32 (154, 52) Mar. 29 6 30.14 1 59.9 3.806 3.933 89 16.1 19:22 (149, 48) 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 gradually. It will be fainter than 18 mag in June. 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. 22 18 43.25 -21 18.1 3.585 3.571 81 16.0 4:40 (252, 59) Mar. 29 18 45.43 -21 47.1 3.540 3.639 87 16.2 4:46 (244, 65) P/2025 A5 ( Catalina ) It approaches to Earth down to 0.3 a.u. in March. Now it is 16.5 mag (Mar. 14, Ken-ichi Kadota). It will fade out rapidly after this. 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) Mar. 22 4 23.32 54 6.6 0.345 0.967 75 16.0 19:32 (155, -8) Mar. 29 5 17.20 65 51.6 0.361 0.999 79 16.3 19:22 (166,-15) C/2022 R6 ( PanSTARRS ) Now it is 16.1 mag (Mar. 9, ATLAS South Africa). It stays 16 mag for a while. It will be getting lower gradually after this, and it will be unobservable in May in the Northern Hemisphere, or in July in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 6 41.65 -20 58.2 6.424 6.650 98 16.3 19:32 (138, 72) Mar. 29 6 43.28 -19 56.6 6.495 6.643 94 16.3 19:22 (131, 69) 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. 22 19 43.45 -24 47.3 6.690 6.383 67 16.4 4:40 (269, 49) Mar. 29 19 45.39 -24 18.9 6.536 6.340 74 16.3 4:46 (263, 55) 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. 22 5 23.17 -42 32.8 7.096 7.039 82 16.3 19:32 ( 64, 64) Mar. 29 5 22.60 -41 38.2 7.194 7.084 79 16.4 19:22 ( 66, 61) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 15.8 mag (Feb. 27, Ken-ichi Kadota). It stays 17 mag for a while. It will be unobservable in May. But it will be observable again in July in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 5 22.50 23 38.6 8.357 8.246 80 16.5 19:32 (148, 24) Mar. 29 5 23.43 23 50.2 8.527 8.298 73 16.6 19:22 (144, 22) 472P/2023 RL75 ( NEAT-LINEAR ) It brightened up to 15.2 mag in winter (Dec. 30, ATLAS-MLO, Mauna Loa). Now it is 16.1 mag (Mar. 5, ATLAS-MLO, Mauna Loa). Fading gradually. It will be fainter than 18 mag in June. In the Northern Hemisphere, it will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 6 19.94 11 58.9 3.608 3.803 93 16.6 19:32 (157, 40) Mar. 29 6 24.58 12 13.6 3.728 3.824 87 16.7 19:22 (153, 39) 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. 22 19 15.79 -13 55.3 2.164 2.099 72 16.6 4:40 (249, 49) Mar. 29 19 28.13 -13 3.7 2.105 2.111 76 16.6 4:46 (243, 52) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 16.9 mag (Mar. 9, Alfons Diepvens). 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. 22 18 24.00 47 23.7 4.438 4.486 86 16.8 4:40 (198, 4) Mar. 29 18 26.28 48 31.7 4.328 4.411 88 16.6 4:46 (192, 5) 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 16.8 mag (Mar. 9, Alfons Diepvens). It stays 17 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 appear in May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 22 50.39 33 37.8 5.751 4.997 37 16.7 4:40 (243,-21) Mar. 29 22 56.91 34 12.2 5.814 5.062 37 16.8 4:46 (239,-16) 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. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 18 7.77 13 55.1 2.490 2.668 89 16.7 4:40 (208, 37) Mar. 29 18 6.13 13 44.3 2.457 2.733 95 16.8 4:46 (197, 40) 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 22 4.62 -61 6.6 7.335 6.986 65 16.8 4:40 (325, 34) Mar. 29 22 8.49 -61 32.2 7.313 7.039 70 16.8 4:46 (324, 37) 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. 22 5 33.62 -26 56.3 6.829 6.786 83 16.8 19:32 (100, 63) Mar. 29 5 34.82 -25 49.4 6.953 6.834 79 16.9 19:22 ( 98, 60) 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. 22 12 16.66 -60 19.8 9.331 9.869 120 16.8 0:20 ( 0, 65) Mar. 29 12 12.60 -60 14.9 9.335 9.913 122 16.9 23:44 ( 0, 65) 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. 22 17 14.97 -51 4.7 4.221 4.473 98 16.9 4:40 (340, 72) Mar. 29 17 11.93 -51 19.9 4.183 4.540 104 17.0 4:46 (359, 74) 195P/Hill Now it is 17.2 mag (Mar. 6, ATLAS South Africa). It stays 17 mag for a while. It will be getting lower gradually after this, and it will be unobservable in May in the Northern Hemisphere, or in July in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 6 23.09 -6 54.3 4.292 4.484 94 17.1 19:32 (146, 58) Mar. 29 6 25.66 -6 34.4 4.380 4.479 89 17.1 19:22 (141, 56) C/2024 G2 ( ATLAS ) Now it is 17.1 mag (Mar. 10, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in July. But it will be observable again in March. 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. 22 11 55.11 -43 57.1 4.617 5.384 136 17.1 23:54 ( 0, 81) Mar. 29 11 46.68 -42 31.9 4.579 5.378 139 17.1 23:18 ( 0, 82) C/2024 X2 ( ATLAS ) Now it is 17.2 mag (Mar. 11, ATLAS South Africa). It stays 18 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. 22 7 29.62 -50 50.2 3.432 3.792 103 17.3 19:32 ( 2, 74) Mar. 29 7 26.72 -47 36.0 3.443 3.778 101 17.3 19:22 ( 18, 77) 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. 22 21 35.67 -23 13.4 3.718 3.070 43 17.4 4:40 (282, 25) Mar. 29 21 46.02 -22 21.7 3.638 3.055 47 17.3 4:46 (278, 29) 88P/Howell It will brighten up to 9 mag in 2026 spring. Now it is 17.3 mag (Mar. 8, ATLAS-HKO, Haleakala). Brightening slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 10 36.21 15 5.4 2.405 3.325 153 17.5 22:35 (180, 40) Mar. 29 10 30.70 15 29.1 2.421 3.289 145 17.5 22:02 (180, 40) (308607) 2005 WY3 Peculiar asteroid moving along a cometary orbit. Now it is 17.5 mag (Feb. 24, Taras Prystavski). 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 4 28.63 -5 6.7 2.228 2.040 66 17.5 19:32 (115, 38) Mar. 29 4 41.58 -3 57.4 2.247 2.007 63 17.5 19:22 (115, 37) C/2022 L2 ( ATLAS ) Now it is 17.0 mag (Mar. 7, ATLAS Chile). Fading slowly. It will be fainter than 18 mag in April. 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. 22 6 12.53 -28 32.5 4.435 4.579 91 17.5 19:32 (105, 72) Mar. 29 6 10.33 -26 58.7 4.572 4.630 87 17.6 19:22 (104, 67) 362P/(457175) 2008 GO98 Now it is 17.4 mag (Sept. 20, Taras Prystavski). It stays 17 mag for a while. It will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 20 49.61 -4 39.6 3.699 3.137 48 17.5 4:40 (258, 25) Mar. 29 20 58.20 -3 51.6 3.642 3.151 53 17.5 4:46 (253, 29) (465402) 2008 HW1 It approached to Sun down to 0.1 a.u. on Jan. 29, to Earth down to 0.1 a.u. in early March, and it brightened up to 14.4 mag (Mar. 6, Alfons Diepvens). 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 10 0.94 36 9.6 0.429 1.328 133 17.6 22:00 (180, 19) Mar. 29 9 56.33 31 54.9 0.589 1.445 129 18.4 21:29 (180, 23) C/2024 V1 ( Borisov ) Now it is 17.4 mag (Mar. 1, ATLAS-HKO, Haleakala). Fading slowly. 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) Mar. 22 8 2.00 38 42.0 1.757 2.323 112 17.6 20:02 (180, 17) Mar. 29 8 1.80 35 1.7 1.828 2.319 106 17.7 19:35 (180, 20) C/2024 N4 ( Sarneczky ) Now it is 17.3 mag (Feb. 25, Alfons Diepvens). It stays 18 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. 22 7 30.44 63 35.6 5.179 5.423 98 17.6 19:32 (180, -8) Mar. 29 7 32.59 62 19.4 5.262 5.429 94 17.7 19:22 (178, -7) 242P/Spahr Now it is 17.5 mag (Mar. 8, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. In the Northern Hemisphere, 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. 22 4 17.82 -7 56.3 4.334 3.992 63 17.7 19:32 (110, 38) Mar. 29 4 24.19 -7 12.4 4.412 3.996 59 17.7 19:22 (108, 35) C/2023 U1 ( Fuls ) Now it is 17.3 mag (Mar. 6, ATLAS Chile). 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 lower gradually. But it will be getting higher again after May. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 2 54.56 -50 0.1 5.512 5.123 62 17.7 19:32 ( 51, 39) Mar. 29 2 55.58 -49 20.6 5.541 5.136 61 17.7 19:22 ( 51, 36) 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. 22 19 35.46 52 49.5 5.313 5.165 76 17.9 4:40 (205, -6) Mar. 29 19 32.94 54 5.8 5.267 5.156 78 17.9 4:46 (200, -4) C/2024 PN7 ( PanSTARRS ) It stays bright even after the perihelion passage. Now it is 17.7 mag (Mar. 2, ATLAS-MLO, Mauna Loa). 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) Mar. 22 15 41.47 52 29.0 1.506 2.076 110 17.9 3:45 (180, 3) Mar. 29 14 56.76 53 42.0 1.509 2.137 115 18.0 2:33 (180, 1) 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 17.9 mag (Mar. 2, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag 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. 22 2 54.85 59 12.9 2.468 2.279 67 17.9 19:32 (150,-20) Mar. 29 3 6.56 60 39.1 2.582 2.334 64 18.0 19:22 (150,-22) C/2024 G6 ( ATLAS ) Now it is 18.6 mag (Aug. 31, ATLAS Chile). It stays 18 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) Mar. 22 17 21.30 -26 52.5 6.576 6.818 99 17.9 4:40 (233, 78) Mar. 29 17 19.20 -26 25.6 6.439 6.803 107 17.9 4:46 (193, 81) P/2024 T2 ( Rankin ) It continued rapid brightening even after the perihelion passage. Now it is 17.2 mag (Mar. 3, ATLAS-HKO, Haleakala). 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) Mar. 22 7 59.95 29 1.2 1.617 2.225 114 17.9 20:01 (180, 26) Mar. 29 8 8.17 28 55.2 1.718 2.257 109 18.1 19:41 (180, 26) 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 19 45.61 14 15.1 5.480 5.147 65 17.9 4:40 (231, 24) Mar. 29 19 45.10 14 31.0 5.417 5.179 71 17.9 4:46 (223, 28) 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 17.3 mag (Mar. 8, ATLAS Chile). 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) Mar. 22 14 24.37 -17 48.4 1.908 2.759 141 18.0 2:27 (180, 73) Mar. 29 14 21.68 -18 1.5 1.859 2.763 148 18.3 1:57 (180, 73) 33P/Daniel It brightened raidly up to 16.6 mag in winter (Jan. 4, D. Buczynski). Now it is 17.8 mag (Feb. 24, ATLAS-HKO, Haleakala). 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. 22 7 11.51 46 33.1 2.059 2.453 101 18.1 19:32 (177, 8) Mar. 29 7 20.88 45 48.7 2.155 2.474 96 18.3 19:22 (175, 9) P/2008 Y12 = P/2014 K3 ( SOHO ) It approached to Sun down to 0.07 a.u. on Mar. 3. In the Southern Hemisphere, it is appearing in the morning sky. 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. 22 22 2.58 -29 44.7 0.914 0.688 41 18.2 4:40 (291, 23) Mar. 29 21 52.09 -33 53.6 0.940 0.860 52 19.2 4:46 (291, 33) 323P/SOHO It approached to Earth down to 0.2 a.u. in mid February, and it was observed at 20.4 mag (Feb. 8, Steward Observatory, Mt. Lemmon Station). It approached to Sun down to 0.04 a.u. on Mar. 14. It is appearing in the evening low sky. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 22 1 25.26 10 26.0 1.005 0.388 22 18.7 19:32 ( 99, -7) Mar. 29 2 36.93 17 7.1 1.063 0.607 34 21.3 19:22 (112, 0) (431760) 2008 HE It approached 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. 22 1 2.61 -0 17.8 0.556 0.478 14 23.2 19:32 ( 86, -5) Mar. 29 2 5.68 1 12.7 0.386 0.665 23 22.1 19:22 ( 94, 3)