Weekly Information about Bright Comets (2026 Apr. 4: South)

Japanese version Home page	Updated on April 6, 2026
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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.

C/2026 A1 ( MAPS ) Kreutz sungrazer comet discovered furthest from Sun in history. It approached to Sun down to 0.005 a.u. on Apr. 4. It brightened up to 7.7 mag until it set down under the horizon before the perihelion passage (Mar. 29, Chris Wyatt). It brightened up to about -1 mag in the SOHO spacecraft images (Apr. 4, Robert Pickard). However, the comet has disappeared at the perihelion passage. It will appear in the evening sky again in calculation, however, probably nothing remained. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 1 4.14 4 35.9 1.042 0.074 3 -0.2 18:45 ( 89,-11) Apr. 11 2 39.78 3 20.9 1.024 0.373 21 6.8 18:36 (100, 8) C/2025 R3 ( PanSTARRS ) It became brighter than expected. It is expected to brighten up to 4 mag in April. Now it is 6.1 mag (Apr. 4, Marco Goiato). It brightens up to 4 mag, but it will turn to fade out rapidly after that. It will be unobservable soon. But it will be observable again in April in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 22 48.61 19 48.7 1.147 0.626 33 6.8 4:50 (247, -2) Apr. 11 23 10.42 19 38.8 0.892 0.543 32 5.6 4:56 (245, 1) 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) Apr. 4 22 25.53 -12 54.2 1.965 1.370 40 9.6 4:50 (270, 22) Apr. 11 22 47.69 -10 51.9 1.960 1.382 41 9.6 4:56 (267, 23) 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 be observable soon. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 12 44.79 -63 16.2 1.947 2.621 122 11.7 23:51 ( 0, 62) Apr. 11 12 8.76 -60 42.9 2.002 2.713 125 12.0 22:48 ( 0, 64) 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 13.0 mag (Mar. 24, Toru Yusa). Fading rapidly. It will be unobservable in June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 4 45.71 13 33.7 1.827 1.555 58 12.2 19:14 (127, 22) Apr. 11 5 2.29 16 32.3 2.010 1.663 55 12.8 19:05 (129, 20) 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) Apr. 4 15 15.39 4 17.0 0.696 1.609 142 13.1 2:28 (180, 51) Apr. 11 15 6.94 3 42.2 0.721 1.666 150 13.6 1:52 (180, 51) 78P/Gehrels 2 It will brighten up to 12 mag in summer. Now it is 14.5 mag (Jan. 16, Kunihiro Shima). It stays 13 mag for a while. 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) Apr. 4 0 39.34 5 50.9 3.112 2.114 2 13.2 4:50 (274,-16) Apr. 11 0 54.57 7 14.6 3.092 2.097 5 13.1 4:56 (270,-13) 235P/LINEAR It became brighter than expected. Now it is 13.6 mag (Mar. 23, 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) Apr. 4 17 11.26 -15 18.7 1.505 2.135 115 13.4 4:24 (180, 70) Apr. 11 17 14.94 -14 31.5 1.457 2.156 121 13.5 4:00 (180, 70) 29P/Schwassmann-Wachmann 1 Now it is 12.3 mag (Mar. 27, Toru Yusa). It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 11 6.53 -1 56.6 5.401 6.313 153 13.7 22:16 (180, 57) Apr. 11 11 4.22 -1 41.5 5.454 6.313 146 13.7 21:46 (180, 57) 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 14.7 mag (Mar. 14, Alfons Diepvens). 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) Apr. 4 5 9.13 33 38.3 2.494 2.275 65 13.8 19:14 (144, 10) Apr. 11 5 23.76 34 17.8 2.584 2.295 62 14.0 19:05 (144, 9) C/2024 J3 ( ATLAS ) Now it is 13.9 mag (Mar. 20, Kunihiro Shima). It stays 13 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) Apr. 4 20 16.68 12 7.7 4.645 4.370 67 13.9 4:50 (226, 30) Apr. 11 20 19.29 13 56.1 4.529 4.342 72 13.9 4:56 (217, 32) 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, but it will appear in July. 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) Apr. 4 3 15.91 -24 16.7 5.767 5.125 46 14.2 19:14 ( 79, 28) Apr. 11 3 21.93 -23 9.4 5.764 5.087 43 14.2 19:05 ( 78, 25) 10P/Tempel 2 It is expected to brighten up to 8 mag in summer. Now it is 16.2 mag (Mar. 23, Ken-ichi Kadota). Brightening rapidly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 18 19.49 -10 19.1 1.427 1.862 98 14.8 4:50 (203, 64) Apr. 11 18 33.18 -9 58.8 1.326 1.821 102 14.3 4:56 (193, 64) C/2023 R1 ( PanSTARRS ) Now it is 14.3 mag (Mar. 31, ATLAS-MLO, Mauna Loa). 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) Apr. 4 19 27.67 -3 35.3 3.584 3.571 81 14.6 4:50 (225, 50) Apr. 11 19 23.21 -3 39.5 3.446 3.570 88 14.6 4:56 (212, 54) C/2022 QE78 ( ATLAS ) Now it is 14.7 mag (Mar. 23, Ken-ichi Kadota). 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) Apr. 4 9 1.75 31 51.7 5.197 5.677 113 14.6 20:12 (180, 23) Apr. 11 9 2.55 31 58.3 5.309 5.690 107 14.7 19:45 (180, 23) 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) Apr. 4 4 58.72 -70 15.7 14.143 14.110 86 14.7 19:14 ( 21, 47) Apr. 11 5 3.24 -69 54.2 14.108 14.088 86 14.7 19:05 ( 22, 46) 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) Apr. 4 0 24.86 8 44.0 1.848 0.865 7 15.5 4:50 (269,-14) Apr. 11 0 59.95 11 26.3 1.824 0.831 5 14.8 4:56 (267,-16) 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) Apr. 4 17 30.92 9 6.3 6.185 6.575 108 14.8 4:43 (180, 46) Apr. 11 17 30.81 9 57.1 6.134 6.608 114 14.8 4:15 (180, 45) 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) Apr. 4 4 15.54 25 42.1 4.916 4.384 52 14.9 19:14 (130, 9) Apr. 11 4 23.45 25 54.1 5.025 4.414 47 15.0 19:05 (129, 7) 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 May. 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) Apr. 4 23 24.10 34 45.0 2.495 1.779 35 15.1 4:50 (239,-17) Apr. 11 23 45.18 36 15.7 2.576 1.847 35 15.5 4:56 (236,-15) 218P/LINEAR Now it is 16.1 mag (Apr. 1, ATLAS Chile). 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) Apr. 4 21 1.74 -14 20.9 1.319 1.195 60 15.3 4:50 (259, 40) Apr. 11 21 23.99 -12 39.5 1.334 1.227 61 15.5 4:56 (255, 41) 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) Apr. 4 3 7.21 -24 26.3 2.752 2.158 44 15.5 19:14 ( 77, 26) Apr. 11 3 17.52 -25 26.8 2.773 2.176 44 15.7 19:05 ( 75, 25) 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) Apr. 4 1 37.27 17 19.6 2.651 1.715 16 15.6 19:14 (101,-15) Apr. 11 1 56.39 19 17.5 2.654 1.704 14 15.6 19:05 (103,-16) C/2024 R4 ( PanSTARRS ) It brightened rapidly. It is expected to brighten up to 13.5 mag from 2027 to 2028. Now it is 15.8 mag (Mar. 29, Alfons Diepvens). 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) Apr. 4 22 8.19 29 0.8 6.976 6.310 45 15.9 4:50 (234, 0) Apr. 11 22 10.24 30 3.7 6.887 6.272 48 15.9 4:56 (228, 4) 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) Apr. 4 6 49.65 39 32.1 1.996 2.173 86 16.2 19:14 (165, 14) Apr. 11 7 1.68 38 4.9 2.042 2.146 82 16.0 19:05 (164, 15) C/2022 R6 ( PanSTARRS ) Now it is 16.1 mag (Mar. 20, Kunihiro Shima). It stays 17 mag for a while. It will be getting lower gradually after this, and it will be unobservable in June 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) Apr. 4 8 29.87 -1 29.1 6.251 6.730 114 16.3 19:40 (180, 57) Apr. 11 8 30.41 -0 41.6 6.358 6.741 108 16.3 19:13 (180, 56) 123P/West-Hartley It will brighten up to 15 mag from autumn to winter. Now it is 17.2 mag (Mar. 19, Erik Bryssinck). 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) Apr. 4 4 33.10 31 35.7 2.898 2.516 57 16.4 19:14 (137, 7) Apr. 11 4 45.50 32 0.8 2.945 2.490 53 16.4 19:05 (136, 6) C/2024 G6 ( ATLAS ) Now it is 16.2 mag (Apr. 1, ATLAS Chile). 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) Apr. 4 16 26.25 4 25.1 5.806 6.436 125 16.5 3:39 (180, 51) Apr. 11 16 22.37 5 34.2 5.728 6.439 131 16.5 3:07 (180, 50) C/2025 T1 ( ATLAS ) It brightened up to 9.0 mag from late November to early December (Nov. 22, Thomas Lehmann). Now it is 15.8 mag (Mar. 25, Michael Mattiazzo). 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 22 23.78 -25 53.6 2.700 2.155 47 16.5 4:50 (283, 29) Apr. 11 22 28.90 -27 45.8 2.671 2.236 54 16.8 4:56 (281, 35) C/2025 J1 ( Borisov ) Now it is 16.9 mag (Apr. 1, ATLAS-MLO, Mauna Loa). 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) Apr. 4 5 7.02 48 26.3 3.874 3.634 68 16.5 19:14 (152, -2) Apr. 11 5 12.54 46 33.6 3.966 3.624 63 16.6 19:05 (150, -2) C/2025 Y1 ( ATLAS ) Now it is 16.5 mag (Mar. 29, ATLAS South Africa). It stays 16 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 12 59.34 2 14.9 4.949 5.941 172 16.7 0:12 (180, 53) Apr. 11 12 56.29 2 42.2 4.904 5.888 168 16.7 23:38 (180, 52) (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 soon. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will never be observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 2 7.96 76 37.2 0.312 0.951 71 16.8 19:14 (165,-34) Apr. 11 0 31.18 84 32.8 0.425 0.993 76 17.2 4:56 (187,-35) 493P/2024 Q2 ( LONEOS ) Now it is 16.8 mag (Mar. 30, Alfons Diepvens). It stays 17 mag for a while. It will be unobservable soon 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) Apr. 4 5 18.90 45 44.7 4.077 3.853 70 16.9 19:14 (153, 1) Apr. 11 5 28.64 45 19.7 4.166 3.858 65 16.9 19:05 (151, 1) C/2023 F3 ( ATLAS ) Now it is 16.5 mag (Mar. 25, Andrew Pearce). 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) Apr. 4 9 14.19 -13 52.6 5.441 6.082 126 17.0 20:23 (180, 69) Apr. 11 9 10.11 -12 41.7 5.556 6.109 119 17.1 19:52 (180, 68) C/2023 X2 ( Lemmon ) Now it is 17.5 mag (Mar. 29, Alfons Diepvens). 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) Apr. 4 21 42.99 84 20.6 5.208 5.142 80 17.1 4:50 (186,-32) Apr. 11 21 39.88 85 13.9 5.243 5.149 79 17.1 4:56 (184,-32) C/2024 A1 ( ATLAS ) Now it is 17.0 mag (Apr. 1, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. 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) Apr. 4 6 14.15 63 36.6 4.680 4.630 81 17.2 19:14 (168,-11) Apr. 11 6 15.85 63 32.8 4.803 4.663 75 17.3 19:05 (166,-12) 40P/Vaisala 1 It became brighter than expected, brightened up to 14.3 mag (Jan. 21, Michael Jager). Now it is 16.7 mag (Mar. 27, Alfons Diepvens). 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) Apr. 4 17 55.42 -10 4.9 1.831 2.297 104 17.2 4:50 (190, 65) Apr. 11 17 59.18 -9 47.9 1.790 2.336 110 17.3 4:44 (180, 65) 43P/Wolf-Harrington Now it is 16.4 mag (Mar. 24, Andrew Pearce). 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) Apr. 4 10 39.45 -5 9.3 2.078 2.968 147 17.3 21:49 (180, 60) Apr. 11 10 37.99 -4 30.8 2.153 2.994 140 17.4 21:20 (180, 60) C/2025 E1 ( PanSTARRS ) Now it is 17.1 mag (Mar. 31, 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) Apr. 4 9 26.90 -68 41.1 3.839 4.262 108 17.4 20:34 ( 0, 56) Apr. 11 9 11.55 -68 14.2 3.825 4.242 107 17.3 19:52 ( 0, 57) 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 soon. 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) Apr. 4 14 27.62 35 6.4 1.162 1.988 133 17.3 1:41 (180, 20) Apr. 11 13 59.57 41 49.7 1.250 2.036 129 17.7 0:46 (180, 14) 195P/Hill Now it is 17.4 mag (Mar. 29, ATLAS Chile). It stays 18 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) Apr. 4 9 18.95 -30 1.5 3.931 4.572 124 17.3 20:28 (180, 85) Apr. 11 9 18.92 -29 8.9 3.988 4.580 120 17.4 20:01 (180, 84) 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 17.5 mag (Apr. 1, Alfons Diepvens). It will fade out rapidly after this. It will be fainter than 18 mag soon. 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) Apr. 4 6 45.50 20 27.1 5.691 5.722 86 17.4 19:14 (158, 32) Apr. 11 6 45.04 20 28.2 6.054 5.958 79 17.7 19:05 (154, 30) C/2023 H5 ( Lemmon ) Now it is 17.2 mag (Mar. 29, 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) Apr. 4 21 40.82 62 15.9 5.186 4.876 66 17.4 4:50 (205,-19) Apr. 11 21 48.98 62 37.5 5.223 4.902 66 17.4 4:56 (203,-17) 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) Apr. 4 20 2.01 2 25.0 5.115 4.901 72 17.4 4:50 (230, 40) Apr. 11 20 6.44 2 44.8 5.025 4.903 77 17.4 4:56 (222, 44) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.6 mag (Oct. 19, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in July. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 4 0 27.60 -43 24.0 11.929 11.301 49 17.4 4:50 (312, 15) Apr. 11 0 29.91 -43 6.2 11.901 11.316 52 17.4 4:56 (309, 20) 164P/Christensen Now it is 17.1 mag (Apr. 1, Alfons Diepvens). Fading gradually. 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) Apr. 4 10 31.77 31 37.6 2.359 3.100 130 17.5 21:41 (180, 24) Apr. 11 10 29.68 31 11.6 2.467 3.139 123 17.7 21:12 (180, 24) C/2024 G2 ( ATLAS ) Now it is 17.4 mag (Mar. 18, Alfons Diepvens). 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) Apr. 4 11 11.60 5 24.4 4.863 5.771 152 17.5 22:21 (180, 50) Apr. 11 11 6.66 6 38.8 4.946 5.790 144 17.6 21:48 (180, 48) (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) Apr. 4 13 29.94 -7 12.2 3.149 4.138 170 17.9 0:43 (180, 62) Apr. 11 13 24.13 -7 15.6 3.089 4.090 177 17.7 0:10 (180, 62) C/2025 V2 ( Rankin ) It is expected to brighten up to 12.5 mag in 2027 spring. Now it is 17.4 mag (Apr. 1, 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) Apr. 4 9 1.75 21 40.3 3.820 4.375 117 17.8 20:12 (180, 33) Apr. 11 9 0.88 22 7.4 3.860 4.314 110 17.8 19:43 (180, 33) 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) Apr. 4 20 20.91 -67 18.5 9.721 9.713 86 17.8 4:50 (337, 50) Apr. 11 20 21.11 -67 49.0 9.683 9.761 91 17.8 4:56 (340, 52) C/2024 J4 ( Lemmon ) Now it is 17.6 mag (Mar. 23, Ken-ichi Kadota). 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) Apr. 4 14 23.38 6 39.4 5.287 6.201 153 17.9 1:36 (180, 48) Apr. 11 14 16.52 6 43.6 5.275 6.220 158 17.9 1:02 (180, 48) 124P/Mrkos Now it is 17.7 mag (Mar. 31, ATLAS-HKO, Haleakala). 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) Apr. 4 8 15.98 43 54.3 1.410 1.880 101 17.9 19:27 (180, 11) Apr. 11 8 22.73 40 40.4 1.446 1.857 96 17.9 19:06 (180, 15) 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 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) Apr. 4 13 2.67 -5 52.7 1.024 2.023 177 20.8 0:16 (180, 61) Apr. 11 12 56.89 -5 41.1 1.068 2.068 174 21.0 23:38 (180, 61)