Weekly Information about Bright Comets (2025 Mar. 29: South)

Japanese version Home page	Updated on March 29, 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.

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. 29 0 38.48 4 51.3 2.007 1.010 2 10.7 19:22 ( 84,-17) Apr. 5 1 8.81 5 27.9 2.018 1.021 3 10.8 19:13 ( 86,-15) 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. 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. 29 0 46.35 -43 2.9 2.401 1.860 46 11.6 19:22 ( 46, 13) Apr. 5 0 59.65 -43 49.4 2.473 1.980 49 11.9 19:13 ( 45, 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. 29 20 25.97 18 5.0 3.545 3.192 61 12.5 4:46 (229, 20) Apr. 5 20 25.31 19 19.7 3.541 3.280 66 12.6 4:51 (222, 24) (3200) Phaethon Parent asteroid of Geminids meteor shower. Now it is 15.9 mag (Jan. 12, E. Prosperi, M. Jaeger). It will fade out rapidly after this. 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. 29 23 57.89 -0 20.6 0.971 0.154 8 13.6 4:46 (277,-10) Apr. 5 0 8.68 7 0.2 1.262 0.348 11 14.0 4:51 (268, -9) 29P/Schwassmann-Wachmann 1 Now it is 12.4 mag (Mar. 20, 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. 29 9 38.60 10 41.3 5.522 6.269 135 13.7 21:11 (180, 44) Apr. 5 9 37.18 10 46.7 5.607 6.270 127 13.7 20:42 (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. 29 15 33.85 -12 18.9 4.476 5.216 133 13.9 3:09 (180, 67) Apr. 5 15 32.55 -11 23.7 4.417 5.232 140 13.9 2:40 (180, 67) C/2022 E2 ( ATLAS ) Now it is 14.1 mag (Mar. 9, Yoshiaki Yamaguchi). 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. 29 1 32.92 48 3.1 4.678 4.060 46 14.2 19:22 (131,-28) Apr. 5 1 35.52 47 55.6 4.763 4.087 42 14.3 19:13 (130,-30) 49P/Arend-Rigaux Now it is 14.3 mag (Mar. 2, Roland Fichtl). Fading gradually. It will be unobservable in July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 3 33.76 10 42.9 1.938 1.438 46 14.3 19:22 (115, 14) Apr. 5 3 55.00 13 4.5 1.959 1.433 44 14.3 19:13 (117, 13) 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. 29 22 56.68 -9 31.8 2.243 1.422 26 14.6 4:46 (276, 8) Apr. 5 23 20.54 -7 45.0 2.190 1.380 27 14.4 4:51 (273, 9) 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. 29 23 23.27 -10 43.0 2.911 2.017 21 14.4 4:46 (280, 4) Apr. 5 23 39.25 -9 23.2 2.892 2.024 24 14.4 4:51 (277, 6) 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. 29 0 36.82 7 46.4 4.973 3.979 4 14.5 19:22 ( 86,-19) Apr. 5 0 45.49 8 44.6 4.961 3.963 3 14.5 4:51 (271,-18) C/2022 QE78 ( ATLAS ) Now it is 14.8 mag (Mar. 10, Alfons Diepvens). 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. 29 6 22.14 13 3.7 5.568 5.611 87 14.7 19:22 (153, 38) Apr. 5 6 25.04 13 38.8 5.666 5.600 81 14.7 19:13 (149, 36) P/2023 S1 Now it is 14.2 mag (Mar. 4, Thomas Lehmann). Fading slowly. 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. 29 8 34.44 16 46.3 2.000 2.627 118 14.9 20:07 (180, 38) Apr. 5 8 37.14 16 17.9 2.083 2.631 112 15.0 19:42 (180, 39) 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. 29 23 44.01 20 16.4 2.717 1.815 20 14.9 4:46 (257,-18) Apr. 5 23 59.98 19 18.3 2.739 1.823 19 14.9 4:51 (256,-14) 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. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 22 20.57 14 50.1 3.551 2.780 33 15.0 4:46 (251, 1) Apr. 5 22 29.44 17 9.7 3.548 2.820 37 15.0 4:51 (245, 5) C/2024 L5 ( ATLAS ) Now it is 15.2 mag (Mar. 9, Ken-ichi Kadota). Fading slowly. In the Northern Hemisphere, it will be unobservable in July. But it will be observable again 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. 29 13 27.10 -27 10.9 2.520 3.437 152 15.0 1:04 (180, 82) Apr. 5 13 7.48 -25 22.6 2.482 3.441 160 15.0 0:17 (180, 81) 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. 29 3 47.26 -66 27.0 15.475 15.298 77 15.3 19:22 ( 29, 43) Apr. 5 3 51.11 -66 11.8 15.438 15.275 78 15.3 19:13 ( 29, 42) 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, Alfons Diepvens). It will fade out rapidly after this. 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. 29 5 13.11 34 59.8 1.632 1.635 72 15.3 19:22 (149, 11) Apr. 5 5 36.80 35 37.2 1.685 1.648 70 15.3 19:13 (150, 11) C/2023 T3 ( Fuls ) Now it is 15.6 mag (Mar. 9, 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. 29 13 17.86 -35 15.0 2.721 3.594 146 15.4 0:54 ( 0, 90) Apr. 5 13 15.65 -34 38.0 2.697 3.604 150 15.4 0:24 (180, 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. 29 3 26.53 17 59.5 3.211 2.612 45 15.5 19:22 (119, 8) Apr. 5 3 38.63 18 27.7 3.256 2.595 41 15.5 19:13 (118, 7) 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. 29 11 27.47 63 29.1 3.905 4.381 112 15.8 22:59 (180, -8) Apr. 5 11 16.88 64 23.8 3.969 4.371 107 15.8 22:21 (180, -9) 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. 29 18 34.94 -25 56.0 2.773 2.953 90 15.9 4:46 (249, 70) Apr. 5 18 41.57 -26 11.2 2.674 2.948 95 15.8 4:51 (238, 75) 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. 29 11 51.05 -44 50.6 4.427 5.207 137 15.9 23:22 ( 0, 80) Apr. 5 11 38.78 -43 36.9 4.418 5.211 138 15.9 22:42 ( 0, 81) 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. 29 8 9.22 56 38.6 2.509 2.865 100 16.0 19:43 (180, -1) Apr. 5 8 17.23 54 24.6 2.605 2.898 96 16.1 19:23 (180, 1) C/2024 A1 ( ATLAS ) Now it is 16.0 mag (Mar. 4, Thomas Lehmann). 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. 29 6 30.14 1 59.9 3.806 3.933 89 16.1 19:22 (149, 48) Apr. 5 6 30.80 3 52.9 3.910 3.923 83 16.1 19:13 (145, 45) C/2023 R1 ( PanSTARRS ) It is expected to brighten up to 13 mag in early summer in 2026. Now it is 16.8 mag (Jan. 30, Ken-ichi Kadota). Brightening 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 April. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 22 32.26 18 34.0 5.714 4.903 32 16.2 4:46 (249, -3) Apr. 5 22 33.72 19 0.4 5.625 4.863 36 16.1 4:51 (244, 3) 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. 29 18 45.43 -21 47.1 3.540 3.639 87 16.2 4:46 (244, 65) Apr. 5 18 46.68 -22 17.9 3.494 3.707 94 16.4 4:51 (231, 71) 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. 29 19 45.39 -24 18.9 6.536 6.340 74 16.3 4:46 (263, 55) Apr. 5 19 46.88 -23 50.5 6.380 6.298 80 16.2 4:51 (256, 61) 499P/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. 29 5 17.20 65 51.6 0.361 0.999 79 16.3 19:22 (166,-15) Apr. 5 7 1.52 74 0.5 0.390 1.039 84 16.6 19:13 (176,-20) 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. But it will be observable again in July in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 6 43.28 -19 56.6 6.495 6.643 94 16.3 19:22 (131, 69) Apr. 5 6 45.38 -18 56.6 6.569 6.636 89 16.3 19:13 (126, 66) C/2019 U5 ( PanSTARRS ) Now it is 16.2 mag (Mar. 10, 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. 29 5 22.60 -41 38.2 7.194 7.084 79 16.4 19:22 ( 66, 61) Apr. 5 5 22.64 -40 46.6 7.292 7.129 76 16.4 19:13 ( 67, 57) 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. But it will be observable again in July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 18 26.28 48 31.7 4.328 4.411 88 16.6 4:46 (192, 5) Apr. 5 18 27.58 49 42.5 4.218 4.335 89 16.5 4:51 (187, 5) 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 5 23.43 23 50.2 8.527 8.298 73 16.6 19:22 (144, 22) Apr. 5 5 24.72 24 1.7 8.693 8.350 66 16.6 19:13 (141, 19) 472P/2023 RL75 ( NEAT-LINEAR ) It brightened up to 15.2 mag in winter (Dec. 30, ATLAS-MLO, Mauna Loa). Now it is 16.2 mag (Mar. 10, ATLAS South Africa). 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. 29 6 24.58 12 13.6 3.728 3.824 87 16.7 19:22 (153, 39) Apr. 5 6 29.81 12 26.5 3.848 3.846 82 16.8 19:13 (150, 37) 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. 29 22 56.91 34 12.2 5.814 5.062 37 16.8 4:46 (239,-16) Apr. 5 23 3.11 34 48.7 5.868 5.127 38 16.8 4:51 (236,-12) 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. 29 22 8.49 -61 32.2 7.313 7.039 70 16.8 4:46 (324, 37) Apr. 5 22 11.94 -62 2.7 7.286 7.092 74 16.8 4:51 (325, 41) 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. 29 18 6.13 13 44.3 2.457 2.733 95 16.8 4:46 (197, 40) Apr. 5 18 3.11 13 31.5 2.425 2.798 101 16.9 4:51 (186, 41) 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. 29 12 12.60 -60 14.9 9.335 9.913 122 16.9 23:44 ( 0, 65) Apr. 5 12 8.63 -60 5.0 9.347 9.956 125 16.9 23:13 ( 0, 65) 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 17.4 mag (Mar. 7, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in May. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 5 34.82 -25 49.4 6.953 6.834 79 16.9 19:22 ( 98, 60) Apr. 5 5 36.45 -24 45.9 7.077 6.883 74 17.0 19:13 ( 97, 56) 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. 29 17 11.93 -51 19.9 4.183 4.540 104 17.0 4:46 (359, 74) Apr. 5 17 7.59 -51 32.2 4.149 4.606 111 17.0 4:16 ( 0, 73) 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. 29 6 25.66 -6 34.4 4.380 4.479 89 17.1 19:22 (141, 56) Apr. 5 6 28.86 -6 15.8 4.468 4.475 84 17.1 19:13 (136, 53) 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 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. 29 11 46.68 -42 31.9 4.579 5.378 139 17.1 23:18 ( 0, 82) Apr. 5 11 38.73 -40 56.5 4.558 5.373 141 17.1 22:42 ( 0, 84) 47P/Ashbrook-Jackson Brightening slowly. In the Northern Hemisphere, it will be unobservable in April. But it will be observable again 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. 29 21 46.02 -22 21.7 3.638 3.055 47 17.3 4:46 (278, 29) Apr. 5 21 56.08 -21 29.7 3.554 3.040 51 17.2 4:51 (274, 34) 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. 29 7 26.72 -47 36.0 3.443 3.778 101 17.3 19:22 ( 18, 77) Apr. 5 7 25.47 -44 21.6 3.468 3.764 99 17.3 19:13 ( 38, 78) 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. 29 10 30.70 15 29.1 2.421 3.289 145 17.5 22:02 (180, 40) Apr. 5 10 25.95 15 46.3 2.448 3.252 137 17.4 21:30 (180, 39) (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 unobservable in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 4 41.58 -3 57.4 2.247 2.007 63 17.5 19:22 (115, 37) Apr. 5 4 55.44 -2 50.3 2.265 1.975 60 17.4 19:13 (115, 35) 362P/(457175) 2008 GO98 Now it is 17.4 mag (Sept. 20, Taras Prystavski). It stays 17 mag for a while. 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. 29 20 58.20 -3 51.6 3.642 3.151 53 17.5 4:46 (253, 29) Apr. 5 21 6.33 -3 3.0 3.580 3.165 57 17.5 4:51 (247, 33) 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. 29 6 10.33 -26 58.7 4.572 4.630 87 17.6 19:22 (104, 67) Apr. 5 6 9.08 -25 31.3 4.712 4.681 82 17.7 19:13 (102, 63) C/2024 N4 ( Sarneczky ) Now it is 17.7 mag (Mar. 4, Erik Bryssinck). 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. 29 7 32.59 62 19.4 5.262 5.429 94 17.7 19:22 (178, -7) Apr. 5 7 35.74 61 2.9 5.349 5.434 89 17.7 19:13 (176, -6) 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 will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 29 8 1.80 35 1.7 1.828 2.319 106 17.7 19:35 (180, 20) Apr. 5 8 3.38 31 32.3 1.908 2.319 101 17.8 19:13 (179, 24) 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. 29 2 55.58 -49 20.6 5.541 5.136 61 17.7 19:22 ( 51, 36) Apr. 5 2 57.11 -48 47.3 5.563 5.150 60 17.7 19:13 ( 50, 33) 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. 29 4 24.19 -7 12.4 4.412 3.996 59 17.7 19:22 (108, 35) Apr. 5 4 30.95 -6 31.1 4.486 3.999 55 17.7 19:13 (107, 33) 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. 29 17 19.20 -26 25.6 6.439 6.803 107 17.9 4:46 (193, 81) Apr. 5 17 16.47 -25 56.7 6.306 6.788 114 17.8 4:24 (180, 81) 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. 29 19 32.94 54 5.8 5.267 5.156 78 17.9 4:46 (200, -4) Apr. 5 19 29.14 55 25.0 5.220 5.148 80 17.8 4:51 (194, -3) 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. 29 19 45.10 14 31.0 5.417 5.179 71 17.9 4:46 (223, 28) Apr. 5 19 43.97 14 47.4 5.348 5.212 76 17.9 4:51 (215, 33) 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. 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. 29 14 56.76 53 42.0 1.509 2.137 115 18.0 2:33 (180, 1) Apr. 5 14 9.96 53 28.0 1.537 2.199 118 18.1 1:19 (180, 2) 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. 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. 29 8 8.17 28 55.2 1.718 2.257 109 18.1 19:41 (180, 26) Apr. 5 8 17.18 28 41.6 1.822 2.291 104 18.4 19:23 (180, 26) 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. 29 14 21.68 -18 1.5 1.859 2.763 148 18.3 1:57 (180, 73) Apr. 5 14 18.00 -18 9.2 1.821 2.768 156 18.6 1:26 (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. 29 7 20.88 45 48.7 2.155 2.474 96 18.3 19:22 (175, 9) Apr. 5 7 31.13 45 0.8 2.252 2.496 92 18.5 19:13 (174, 10) (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). Fading rapidly. 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. 29 9 56.33 31 54.9 0.589 1.445 129 18.4 21:29 (180, 23) Apr. 5 9 56.03 29 9.7 0.755 1.557 124 19.1 21:01 (180, 26) 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. 29 21 52.09 -33 53.6 0.940 0.860 52 19.2 4:46 (291, 33) Apr. 5 21 42.78 -37 33.5 0.955 1.015 62 20.0 4:51 (291, 43) 105P/Singer Brewster It became much fainter than predicted after the perihelion passage. Now it is 20.0 mag (Mar. 12, Taras Prystavski). It stays 20 mag for a while. 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. 29 19 28.13 -13 3.7 2.105 2.111 76 19.4 4:46 (243, 52) Apr. 5 19 39.65 -12 9.5 2.045 2.124 80 19.5 4:51 (236, 55) (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. 29 2 5.68 1 12.7 0.386 0.665 23 22.1 19:22 ( 94, 3) Apr. 5 4 0.12 4 10.3 0.285 0.828 45 19.6 19:13 (112, 22) 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. 29 2 36.93 17 7.1 1.063 0.607 34 21.3 19:22 (112, 0) Apr. 5 3 34.85 21 5.7 1.181 0.789 41 22.9 19:13 (120, 5)