Weekly Information about Bright Comets (2026 Mar. 28: North)

Japanese version Home page	Updated on March 28, 2026
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

C/2026 A1 ( MAPS ) Kreutz sungrazer comet discovered furthest from Sun in history. It approaches to Sun down to 0.005 a.u. on Apr. 4. Now it is 7.8 mag (Mar. 27, Mike Olason). It is expected to brighten up to 1-2 mag when observable on the ground. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 1 48.80 -1 47.9 1.142 0.420 21 7.5 19:12 ( 87, 2) Apr. 4 1 4.14 4 35.9 1.042 0.074 3 -0.2 19:18 (105,-11) C/2025 R3 ( PanSTARRS ) It became brighter than expected. It is expected to brighten up to 4 mag in April. Now it is 7.3 mag (Mar. 27, Virgilio Gonano). It brightens up to 4 mag, but it will turn to fade out rapidly after that. In the Northern Hemisphere, it will be unobservable in April. 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. 28 22 38.57 19 28.9 1.376 0.732 31 7.8 4:28 (255, 13) Apr. 4 22 48.61 19 48.7 1.147 0.626 33 6.8 4:17 (256, 14) 88P/Howell Now it is 9.9 mag (Mar. 17, Mike Olason). Fading gradually. It stays extremely low in the Northern Hemisphere. But it will become high in summer. 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. 28 22 2.54 -14 52.4 1.974 1.362 39 9.6 4:28 (289, 1) Apr. 4 22 25.53 -12 54.2 1.965 1.370 40 9.6 4:17 (286, 1) C/2025 A6 ( Lemmon ) It brightened up to 3.7 mag in late October (Oct. 26, Juan Jose Gonzalez). Now it is 11.3 mag (Mar. 15, Chris Wyatt). It will fade out rapidly after this. In the Northern Hemisphere, it is not observable now, but it will appear 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. 28 13 28.41 -64 52.8 1.914 2.527 116 11.4 1:11 ( 0,-10) Apr. 4 12 44.79 -63 16.2 1.947 2.621 122 11.7 23:51 ( 0, -8) C/2024 E1 ( Wierzchos ) It brightened up to 6.6 mag in January (Jan. 28, Chris Wyatt). The nucleus was disintegrated in March and the comet is fading and getting diffused very rapidly. Now it is 11.6 mag (Mar. 22, Chris Wyatt). It will be unobservable in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 4 27.31 9 51.5 1.648 1.445 60 11.6 19:42 ( 77, 35) Apr. 4 4 45.71 13 33.7 1.827 1.555 58 12.2 19:49 ( 83, 34) 24P/Schaumasse It brightened up to 8.4 mag in January (Jan. 14, Mitsunori Tsumura). Now it is 12.2 mag (Mar. 24, Toru Yusa). Fading rapidly. 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. 28 15 22.21 4 45.1 0.678 1.554 135 12.6 3:02 ( 0, 60) Apr. 4 15 15.39 4 17.0 0.696 1.609 142 13.1 2:28 ( 0, 59) 78P/Gehrels 2 It will brighten up to 12 mag in summer. Now it is 14.5 mag (Jan. 16, Kunihiro Shima). Brightening slowly. Now it is not observable. It will appear in May 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. 28 0 24.33 4 26.9 3.130 2.133 1 13.4 4:28 (252,-17) Apr. 4 0 39.34 5 50.9 3.112 2.114 2 13.2 4:17 (251,-16) 235P/LINEAR It became brighter than expected. Now it is 13.9 mag (Mar. 14, Ken Harikae). 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. 28 17 6.01 -16 2.0 1.557 2.115 109 13.3 4:28 (354, 39) Apr. 4 17 11.26 -15 18.7 1.505 2.135 115 13.4 4:17 (358, 40) 29P/Schwassmann-Wachmann 1 Now it is 11.5 mag (Mar. 24, Toru Yusa). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 11 9.14 -2 12.6 5.361 6.312 160 13.6 22:46 ( 0, 53) Apr. 4 11 6.53 -1 56.6 5.401 6.313 153 13.7 22:16 ( 0, 53) 240P/NEAT It brightened up to 11.1 mag in winter (Nov. 15, Masayoshi Yoshimi). The component B also brightened rapidly up to 13.8 mag (Ded. 8, Masayoshi Yoshimi). Now it is 13.8 mag (Mar. 5, Thomas Lehmann). Fading gradually. It will be unobservable in June in the Southern Hemisphere, or in July in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 4 54.99 32 52.3 2.402 2.256 69 13.7 19:42 (101, 51) Apr. 4 5 9.13 33 38.3 2.494 2.275 65 13.8 19:49 (104, 47) C/2024 J3 ( ATLAS ) Now it is 13.9 mag (Mar. 20, Kunihiro Shima). Brightening slowly. 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. 28 20 13.58 10 24.3 4.761 4.398 62 14.0 4:28 (285, 37) Apr. 4 20 16.68 12 7.7 4.645 4.370 67 13.9 4:17 (286, 41) C/2024 T5 ( ATLAS ) Now it is 13.9 mag (Mar. 12, ATLAS South Africa). Brightening slowly. In the Northern Hemisphere, it is not observable now. It locates somewhat low in the Southern Hemisphere. But it will become high in summer. It is expected to brighten up to 11 mag in next winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 3 10.16 -25 26.7 5.765 5.163 48 14.3 19:42 ( 60, -2) Apr. 4 3 15.91 -24 16.7 5.767 5.125 46 14.2 19:49 ( 65, -7) C/2022 QE78 ( ATLAS ) Now it is 14.6 mag (Mar. 19, Kunihiro Shima). It stays 15 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 9 1.55 31 41.3 5.089 5.663 120 14.6 20:39 ( 0, 87) Apr. 4 9 1.75 31 51.7 5.197 5.677 113 14.6 20:12 ( 0, 87) C/2023 R1 ( PanSTARRS ) Now it is 14.1 mag (Mar. 20, Kunihiro Shima). 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. 28 19 30.96 -3 32.8 3.719 3.573 73 14.7 4:28 (306, 36) Apr. 4 19 27.67 -3 35.3 3.584 3.571 81 14.6 4:17 (311, 39) C/2026 B2 ( Sun-Gao ) Bright new comet discovered near Sun. It became brighter furthermore after the discovery, brightened up to 12.7 mag (Feb. 14, Mike Olason). Now it is 16.2 mag (Mar. 16, D. Buczynski). It will fade out rapidly after this. It will be fainter than 18 mag in June. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 23 2.00 33 1.2 2.416 1.713 36 14.7 4:28 (240, 16) Apr. 4 23 24.10 34 45.0 2.495 1.779 35 15.1 4:17 (238, 16) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 14.9 mag (Mar. 12, Andrew Pearce). 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. 28 4 54.68 -70 38.4 14.179 14.131 85 14.8 19:42 ( 15,-21) Apr. 4 4 58.72 -70 15.7 14.143 14.110 86 14.7 19:49 ( 18,-22) C/2022 N2 ( PanSTARRS ) Now it is 14.7 mag (Mar. 12, Toru Yusa). It stays 15 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. 28 4 7.87 25 29.9 4.802 4.355 57 14.8 19:42 ( 96, 39) Apr. 4 4 15.54 25 42.1 4.916 4.384 52 14.9 19:49 (100, 34) 10P/Tempel 2 It is expected to brighten up to 8 mag in summer. Now it is 16.8 mag (Mar. 19, Francois Kugel). Brightening rapidly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 18 5.78 -10 36.5 1.531 1.904 95 15.3 4:28 (334, 41) Apr. 4 18 19.49 -10 19.1 1.427 1.862 98 14.8 4:17 (335, 41) C/2021 G2 ( ATLAS ) Now it is 14.3 mag (Mar. 19, Francois Kugel). It stays 15 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. 28 17 30.53 8 15.1 6.242 6.543 103 14.8 4:28 (337, 61) Apr. 4 17 30.92 9 6.3 6.185 6.575 108 14.8 4:17 (345, 63) 218P/LINEAR Now it is 15.0 mag (Mar. 9, ATLAS-HKO, Haleakala). It will fade out rapidly after this. 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. 28 20 37.70 -15 59.7 1.303 1.169 59 15.2 4:28 (303, 15) Apr. 4 21 1.74 -14 20.9 1.319 1.195 60 15.3 4:17 (300, 15) C/2025 Q3 ( ATLAS ) It became brighter than expected. Now it is 14.9 mag (Mar. 8, Martin Masek). Fading gradually. It will be fainter than 18 mag in July. In the Northern Hemisphere, it will never be observable after this. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 2 57.55 -23 29.3 2.723 2.143 45 15.4 19:42 ( 63, -3) Apr. 4 3 7.21 -24 26.3 2.752 2.158 44 15.5 19:49 ( 66, -8) 141P/Machholz 2 The condition is very bad in this apparition. It is not observable at all. It brightens up to 13 mag, but it will turn to fade out rapidly after that. It will be fainter than 18 mag in July. It will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 23 51.48 5 54.7 1.883 0.911 9 16.1 4:28 (256, -9) Apr. 4 0 24.86 8 44.0 1.848 0.865 7 15.5 4:17 (251,-11) 93P/Lovas 1 Now it is 16.0 mag (Jan. 18, Kunihiro Shima). It stays 16 mag for a while. Now it is not observable. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 1 18.74 15 17.9 2.649 1.729 18 15.7 19:42 (109, 0) Apr. 4 1 37.27 17 19.6 2.651 1.715 16 15.6 19:49 (113, -2) C/2024 R4 ( PanSTARRS ) It brightened rapidly. It is expected to brighten up to 13.5 mag from 2027 to 2028. Now it is 16.1 mag (Mar. 16, D. Buczynski). 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. 28 22 5.88 28 1.3 7.056 6.347 41 16.0 4:28 (251, 24) Apr. 4 22 8.19 29 0.8 6.976 6.310 45 15.9 4:17 (252, 27) C/2025 T1 ( ATLAS ) It brightened up to 9.0 mag from late November to early December (Nov. 22, Thomas Lehmann). It will fade out rapidly after this. It will be fainter than 18 mag in May. 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. 28 22 18.19 -24 9.8 2.721 2.075 41 16.2 4:28 (294, -8) Apr. 4 22 23.78 -25 53.6 2.700 2.155 47 16.5 4:17 (297, -7) 63P/Wild 1 Now it is 15.8 mag (Mar. 6, Thomas Lehmann). Brightening slowly. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in July. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 6 38.55 40 57.4 1.952 2.202 90 16.4 19:42 (116, 72) Apr. 4 6 49.65 39 32.1 1.996 2.173 86 16.2 19:49 (110, 68) C/2022 R6 ( PanSTARRS ) Now it is 16.1 mag (Mar. 20, Kunihiro Shima). 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. 28 8 29.80 -2 19.0 6.150 6.720 121 16.2 20:07 ( 0, 53) Apr. 4 8 29.87 -1 29.1 6.251 6.730 114 16.3 19:49 ( 4, 53) 123P/West-Hartley It will brighten up to 15 mag from autumn to winter. Now it is 17.3 mag (Mar. 18, Alfons Diepvens). Brightening slowly. It will be unobservable in May 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. 28 4 21.44 31 8.9 2.848 2.541 62 16.5 19:42 (102, 44) Apr. 4 4 33.10 31 35.7 2.898 2.516 57 16.4 19:49 (105, 39) C/2024 G6 ( ATLAS ) Now it is 16.9 mag (Mar. 9, ATLAS South Africa). It stays 17 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. 28 16 29.56 3 16.8 5.895 6.434 118 16.5 4:10 ( 0, 58) Apr. 4 16 26.25 4 25.1 5.806 6.436 125 16.5 3:39 ( 0, 59) C/2025 J1 ( Borisov ) Now it is 16.6 mag (Mar. 1, Ken-ichi Kadota). 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. But it will be observable again in July. In the Southern Hemisphere, it is not observable now. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 5 1.97 50 27.1 3.780 3.646 74 16.5 19:42 (129, 54) Apr. 4 5 7.02 48 26.3 3.874 3.634 68 16.5 19:49 (126, 49) (248590) 2006 CS It seems to be a parent of the beta-Tucanids meteor shower. Now it is 18.3 mag (Jan. 12, ATLAS South Africa). 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. 28 2 41.01 58 26.9 0.210 0.917 61 16.7 19:42 (144, 34) Apr. 4 2 7.96 76 37.2 0.312 0.951 71 16.8 19:49 (165, 32) C/2025 Y1 ( ATLAS ) Now it is 16.5 mag (Mar. 19, Kunihiro Shima). It stays 17 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. 28 13 2.29 1 46.9 5.008 5.993 169 16.8 0:43 ( 0, 57) Apr. 4 12 59.34 2 14.9 4.949 5.941 172 16.7 0:12 ( 0, 57) 493P/2024 Q2 ( LONEOS ) Now it is 16.3 mag (Mar. 14, Alfons Diepvens). It stays 17 mag for a while. It will be unobservable in April in the Southern Hemisphere, or in July in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 5 9.65 46 10.4 3.985 3.848 74 16.9 19:42 (122, 56) Apr. 4 5 18.90 45 44.7 4.077 3.853 70 16.9 19:49 (122, 51) C/2023 F3 ( ATLAS ) Now it is 16.5 mag (Mar. 9, ATLAS-HKO, Haleakala). 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 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. 28 9 19.01 -15 5.7 5.338 6.056 132 17.0 20:56 ( 0, 40) Apr. 4 9 14.19 -13 52.6 5.441 6.082 126 17.0 20:23 ( 0, 41) 3I/2025 N1 ( ATLAS ) Third interstellar object in history following 1I/'Oumuamua and 2I/Borisov. The eccentricity is extremely big as 6. It approached to Sun down to 1.38 a.u. in late October. It brightened up to 8.9 mag in November (Nov. 12, Toshiyuki Takahashi). Now it is 17.8 mag (Mar. 18, Alfons Diepvens). It will fade out rapidly after this. It will be fainter than 18 mag in April. In the Northern Hemisphere, it will be getting lower gradually. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 6 46.67 20 25.1 5.326 5.486 93 17.0 19:42 ( 55, 67) Apr. 4 6 45.50 20 27.1 5.691 5.722 86 17.4 19:49 ( 67, 61) C/2025 L1 ( ATLAS ) It was expected to brighten up to 13.5 mag. But actually, it is getting diffuse and fading very rapidly. Now it is 17.4 mag (Mar. 10, Toru Yusa). It will fade out rapidly after this. It will be fainter than 18 mag in April. 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. 28 14 52.74 26 46.1 1.112 1.941 133 17.1 2:34 ( 0, 81) Apr. 4 14 27.62 35 6.4 1.162 1.988 133 17.3 1:41 ( 0, 90) C/2023 X2 ( Lemmon ) Now it is 18.1 mag (Mar. 16, D. Buczynski). It stays 17 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. 28 21 41.21 83 32.8 5.170 5.134 82 17.1 4:28 (188, 37) Apr. 4 21 42.99 84 20.6 5.208 5.142 80 17.1 4:17 (186, 37) C/2023 RS61 ( PanSTARRS ) It is around 20 mag usually. However, it brightened in outburst in 2025 autumn up to 17.0 mag (Sept. 4, Taras Prystavski). Now it is 17.3 mag (Mar. 6, ATLAS-HKO, Haleakala). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in May. But it will be observable again in June. In the Southern Hemisphere, it is not observable now, but it will appear in July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 3 4.19 35 47.5 9.283 8.665 49 17.1 19:42 (115, 30) Apr. 4 3 8.14 35 54.2 9.351 8.657 43 17.1 19:49 (118, 25) C/2024 A1 ( ATLAS ) Now it is 17.2 mag (Mar. 7, Thomas Lehmann). 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. 28 6 13.94 63 41.7 4.555 4.599 86 17.1 19:42 (158, 57) Apr. 4 6 14.15 63 36.6 4.680 4.630 81 17.2 19:49 (154, 54) 40P/Vaisala 1 It became brighter than expected, brightened up to 14.3 mag (Jan. 21, Michael Jager). Now it is 17.3 mag (Mar. 20, ATLAS Chile). 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. 28 17 50.22 -10 22.1 1.873 2.258 99 17.2 4:28 (339, 42) Apr. 4 17 55.42 -10 4.9 1.831 2.297 104 17.2 4:17 (343, 43) 43P/Wolf-Harrington Now it is 17.4 mag (Mar. 20, Mt. Lemmon Survey). Fading gradually. 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. 28 10 41.87 -5 51.0 2.013 2.943 153 17.2 22:19 ( 0, 49) Apr. 4 10 39.45 -5 9.3 2.078 2.968 147 17.3 21:49 ( 0, 50) 195P/Hill Now it is 17.4 mag (Mar. 20, Kunihiro Shima). It stays 18 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. 28 9 19.76 -30 52.8 3.882 4.565 127 17.3 20:57 ( 0, 24) Apr. 4 9 18.95 -30 1.5 3.931 4.572 124 17.3 20:28 ( 0, 25) C/2023 H5 ( Lemmon ) Now it is 17.1 mag (Mar. 18, W. Hasubick). 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. 28 21 31.72 61 57.3 5.144 4.850 67 17.3 4:28 (215, 39) Apr. 4 21 40.82 62 15.9 5.186 4.876 66 17.4 4:17 (214, 40) C/2025 E1 ( PanSTARRS ) Now it is 17.2 mag (Mar. 19, ATLAS Chile). 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. 28 9 44.41 -68 54.7 3.859 4.283 108 17.4 21:19 ( 0,-14) Apr. 4 9 26.90 -68 41.1 3.839 4.262 108 17.4 20:34 ( 0,-14) 164P/Christensen Now it is 17.6 mag (Mar. 20, Kunihiro Shima). Fading gradually. It will be fainter than 18 mag in April. 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. 28 10 35.01 31 55.0 2.259 3.062 136 17.4 22:12 ( 0, 87) Apr. 4 10 31.77 31 37.6 2.359 3.100 130 17.5 21:41 ( 0, 86) C/2024 G4 ( PanSTARRS ) Now it is 17.2 mag (Mar. 12, ATLAS South Africa). It stays 17 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. 28 19 57.14 2 5.1 5.203 4.901 67 17.5 4:28 (296, 35) Apr. 4 20 2.01 2 25.0 5.115 4.901 72 17.4 4:17 (298, 38) C/2024 G2 ( ATLAS ) Now it is 17.4 mag (Mar. 18, Alfons Diepvens). 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. 28 11 16.96 4 5.8 4.796 5.752 161 17.5 22:53 ( 0, 59) Apr. 4 11 11.60 5 24.4 4.863 5.771 152 17.5 22:21 ( 0, 60) C/2025 V2 ( Rankin ) It is expected to brighten up to 12.5 mag in 2027 spring. Now it is 17.1 mag (Mar. 11, Alfons Diepvens). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 9 3.41 21 8.8 3.786 4.435 125 17.9 20:41 ( 0, 76) Apr. 4 9 1.75 21 40.3 3.820 4.375 117 17.8 20:12 ( 0, 77) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. It stays 18 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. 28 20 19.94 -66 50.1 9.758 9.665 81 17.8 4:28 (340,-20) Apr. 4 20 20.91 -67 18.5 9.721 9.713 86 17.8 4:17 (342,-19) C/2024 J4 ( Lemmon ) Now it is 17.5 mag (Mar. 14, ATLAS Chile). It stays 18 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. 28 14 29.93 6 33.0 5.316 6.181 147 17.9 2:10 ( 0, 61) Apr. 4 14 23.38 6 39.4 5.287 6.201 153 17.9 1:36 ( 0, 62) 124P/Mrkos Now it is 18.0 mag (Mar. 8, Alfons Diepvens). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 8 10.86 47 6.9 1.378 1.904 105 17.9 19:49 (180, 78) Apr. 4 8 15.98 43 54.3 1.410 1.880 101 17.9 19:49 (155, 80) C/2025 A1 ( Lemmon ) Now it is 17.8 mag (Mar. 18, Alfons Diepvens). 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. 28 8 22.34 37 54.1 5.507 5.935 110 17.9 20:00 (180, 87) Apr. 4 8 22.96 37 52.8 5.585 5.913 104 18.0 19:49 (132, 86) (15504) 1999 RG33 Peculiar asteroid moving along a cometary orbit. It stays 18 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. 28 13 35.33 -7 8.3 3.225 4.186 162 18.1 1:16 ( 0, 48) Apr. 4 13 29.94 -7 12.2 3.149 4.138 170 17.9 0:43 ( 0, 48) 489P/Denning It had been lost for 113 years. It must have passed the perihelion on Dec. 4. It brightened up to 18 mag in outburst in 2007. It will turn to fade out rapidly after the peak. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Mar. 28 13 8.74 -6 4.6 0.991 1.980 168 20.9 0:50 ( 0, 49) Apr. 4 13 2.67 -5 52.7 1.024 2.023 177 20.8 0:16 ( 0, 49)