Weekly Information about Bright Comets (2025 Apr. 26: North)

Japanese version Home page	Updated on April 26, 2025
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere. Azimuth indicates 0 for south, 90 for west, 180 for north, 270 for east.

C/2025 F2 ( SWAN ) Bright new comet discovered in the SWAN images. It brightened rapidly up to 7.8 mag on Apr. 8 (Osamu Miyazaki). Then it has been fading before the perihelion passage. Now it is 9.2 mag (Apr. 24, Virgilio Gonano). It will fade out rapidly after this. It will be fainter than 18 mag in August. In the Northern Hemisphere, it will be unobservable in May. 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) Apr. 26 2 25.83 34 17.7 0.999 0.367 21 9.8 20:13 (134, -1) May 3 3 53.65 24 52.8 0.965 0.338 19 10.8 20:21 (119, 1) 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) Apr. 26 2 36.92 6 39.1 2.089 1.105 8 11.6 20:13 (113,-18) May 3 3 4.83 6 48.8 2.124 1.149 10 11.9 20:21 (114,-20) 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. Fading gradually. 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) Apr. 26 1 37.82 -46 43.0 2.642 2.321 60 12.8 3:43 (305,-41) May 3 1 50.14 -47 54.6 2.687 2.429 64 13.0 3:33 (306,-40) C/2023 A3 ( Tsuchinshan-ATLAS ) It brightened up to -3 mag due to the forward scattering on Oct. 9 in the SOHO coronagraph images (Q.-c. Zhang, Charles S. Morris). It became a great comet of 0 mag on the ground. Now it is 12.4 mag (Mar. 22, 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) Apr. 26 20 17.60 23 3.9 3.504 3.541 83 12.8 3:43 (282, 57) May 3 20 12.94 24 15.0 3.489 3.626 89 12.9 3:33 (285, 63) 217P/LINEAR It brightens up to 13 mag in early summer. But the condition in this apparition is bad. Now it is 14.0 mag (Apr. 14, B. Lutkenhoner). Fading 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) Apr. 26 0 35.06 -1 48.9 2.068 1.281 28 13.7 3:43 (266, -8) May 3 1 0.68 0 15.9 2.042 1.258 28 13.5 3:33 (263, -9) 29P/Schwassmann-Wachmann 1 Now it is 11.9 mag (Apr. 21, Hiroshi Abe). It will be getting lower gradually after this, and it will be unobservable in July in the Northern Hemisphere, or in August in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 9 35.90 10 50.0 5.905 6.274 107 13.8 20:13 ( 30, 63) May 3 9 36.49 10 46.4 6.015 6.275 100 13.9 20:21 ( 45, 58) C/2021 G2 ( ATLAS ) Now it is 13.8 mag (Apr. 18, Yoshiaki Yamaguchi). 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. 26 15 25.96 -8 29.9 4.318 5.282 161 13.9 1:11 ( 0, 46) May 3 15 23.16 -7 32.0 4.314 5.300 166 13.9 0:41 ( 0, 47) 49P/Arend-Rigaux Now it is 13.7 mag (Apr. 4, Thomas Lehmann). It will fade out rapidly after this. It will be unobservable in July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 5 2.62 19 8.0 2.043 1.442 40 14.3 20:13 (102, 18) May 3 5 26.21 20 42.9 2.078 1.453 39 14.4 20:21 (105, 16) C/2022 N2 ( PanSTARRS ) 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) Apr. 26 1 11.88 11 38.8 4.881 3.919 15 14.4 3:43 (250, -8) May 3 1 20.74 12 36.1 4.842 3.906 19 14.3 3:33 (250, -6) 48P/Johnson Fading slowly. In the Northern Hemisphere, it is not observable now, but it will appear in June. 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. 26 0 25.73 -5 27.1 2.825 2.052 32 14.4 3:43 (271, -9) May 3 0 40.73 -4 11.6 2.799 2.064 35 14.4 3:33 (270, -7) C/2022 E2 ( ATLAS ) It was observed at 12-13 mag for a long time in 2024. Now it is 14.5 mag (Apr. 3, Thomas Lehmann). 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. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 1 43.50 48 10.9 4.951 4.171 35 14.5 3:43 (217, 11) May 3 1 45.97 48 26.9 4.989 4.200 34 14.5 3:33 (219, 13) C/2022 QE78 ( ATLAS ) Now it is 15.0 mag (Apr. 18, Andrew Pearce). It stays 15 mag for a while. It will be unobservable in June. But it will be observable again in August in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 6 36.58 15 12.2 5.945 5.570 63 14.8 20:13 ( 85, 34) May 3 6 41.26 15 39.1 6.031 5.561 57 14.9 20:21 ( 90, 28) C/2024 J2 ( Wierzchos ) Brightened rapidly. Now it is 14.6 mag (Jan. 31, Thomas Lehmann). Fading slowly. It will be unobservable in May. But it will be observable again in May in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 0 44.10 16 16.4 2.768 1.871 21 15.1 3:43 (250, 0) May 3 0 57.70 15 10.9 2.764 1.895 24 15.2 3:33 (252, 1) C/2024 L5 ( ATLAS ) Now it is 14.7 mag (Apr. 7, Taras Prystavski). Fading gradually. It will be getting lower gradually after this, and it will be unobservable in July in the Northern Hemisphere, or in August in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 12 12.65 -18 32.4 2.549 3.461 150 15.1 21:53 ( 0, 37) May 3 11 57.62 -16 9.1 2.628 3.470 140 15.2 21:11 ( 0, 39) C/2023 C2 ( ATLAS ) It brightened up to 12.7 mag in 2024 summer (Aug. 7, 2024, Thomas Lehmann). Now it is 14.9 mag (Apr. 7, Masayoshi Yoshimi). It stays 16 mag for a while. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it will be unobservable in August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 22 54.11 24 12.7 3.521 2.947 48 15.2 3:43 (258, 26) May 3 23 1.58 26 34.3 3.508 2.991 51 15.3 3:33 (256, 29) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.3 mag (Apr. 4, ATLAS South Africa). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now. 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. 26 4 4.40 -65 37.4 15.318 15.205 81 15.2 20:13 ( 30,-34) May 3 4 9.30 -65 30.3 15.275 15.182 82 15.2 20:21 ( 30,-37) P/2023 S1 ( PanSTARRS ) It brightened up to 14.4 mag in winter (Feb. 4, Ken-ichi Kadota). Now it is 15.4 mag (Apr. 21, Hiroshi Abe). 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) Apr. 26 8 51.55 14 36.3 2.350 2.645 95 15.3 20:13 ( 53, 60) May 3 8 58.09 13 56.8 2.443 2.651 90 15.4 20:21 ( 62, 54) 43P/Wolf-Harrington Now it is 16.1 mag (Mar. 27, Thomas Lehmann). It stays 15 mag for a while. It will be unobservable in May. But it will be observable again in August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 4 17.16 19 40.0 3.367 2.549 30 15.5 20:13 (108, 9) May 3 4 30.66 19 58.4 3.395 2.535 26 15.4 20:21 (111, 5) C/2023 T3 ( Fuls ) Now it is 15.1 mag (Apr. 7, Taras Prystavski). 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) Apr. 26 13 9.11 -31 56.8 2.699 3.643 156 15.5 22:51 ( 0, 23) May 3 13 7.58 -30 51.6 2.725 3.658 153 15.5 22:22 ( 0, 24) 65P/Gunn Now it is 16.6 mag (Apr. 13, ATLAS Chile). It stays 15 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) Apr. 26 18 56.09 -27 6.5 2.392 2.937 113 15.6 3:43 (346, 26) May 3 18 58.86 -27 29.5 2.306 2.934 119 15.5 3:33 (349, 27) 496P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 15.7 mag (Apr. 14, ATLAS-MLO, Mauna Loa). It will fade out rapidly after this. It will be fainter than 18 mag in July. In the Northern Hemisphere, it will be getting lower gradually. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 6 49.68 35 46.1 1.863 1.708 65 15.6 20:13 (108, 46) May 3 7 13.67 35 15.6 1.929 1.734 63 15.7 20:21 (108, 43) C/2023 R1 ( PanSTARRS ) It is expected to brighten up to 13 mag in early summer in 2026. Now it is 16.3 mag (Apr. 15, Ken-ichi Kadota). Brightening slowly. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat 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) Apr. 26 22 35.99 20 32.3 5.293 4.744 52 15.9 3:43 (263, 28) May 3 22 35.82 21 6.3 5.163 4.705 57 15.8 3:33 (265, 32) C/2024 J3 ( ATLAS ) It will brighten up to 13 mag in 2026. Now it is 16.2 mag (Apr. 24, ATLAS Chile). It stays 15 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) Apr. 26 19 48.20 -22 25.1 5.903 6.172 100 16.0 3:43 (331, 27) May 3 19 47.48 -21 56.6 5.748 6.130 107 15.9 3:33 (335, 29) C/2024 E1 ( Wierzchos ) It is expected to brighten up to 5 mag in 2026 January. Now it is 16.2 mag (Apr. 16, Ken-ichi Kadota). 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) Apr. 26 18 24.25 53 20.6 3.898 4.103 94 16.1 3:43 (192, 71) May 3 18 20.23 54 30.2 3.795 4.025 95 15.9 3:33 (182, 71) C/2023 F3 ( ATLAS ) Now it is 16.1 mag (Mar. 31, 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) Apr. 26 11 7.91 -39 0.9 4.503 5.228 131 16.0 20:49 ( 0, 16) May 3 11 0.04 -37 20.0 4.566 5.235 127 16.0 20:21 ( 1, 18) C/2023 H5 ( Lemmon ) Now it is 15.8 mag (Apr. 4, 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) Apr. 26 10 50.10 65 45.2 4.187 4.346 92 16.0 20:32 (180, 59) May 3 10 43.97 65 51.2 4.264 4.340 87 16.0 20:21 (176, 59) C/2024 A1 ( ATLAS ) Now it is 16.2 mag (Apr. 11, ATLAS South Africa). It stays 16 mag for a while. It will be unobservable in June. But it will be observable again in August in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 6 37.14 8 50.0 4.222 3.899 64 16.3 20:13 ( 79, 31) May 3 6 40.48 10 16.1 4.321 3.892 58 16.3 20:21 ( 85, 25) C/2022 R6 ( PanSTARRS ) Now it is 16.3 mag (Apr. 21, ATLAS Chile). It stays 16 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 July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 6 54.26 -16 10.8 6.798 6.617 75 16.4 20:13 ( 55, 18) May 3 6 57.96 -15 21.5 6.874 6.611 70 16.4 20:21 ( 61, 13) C/2023 Q1 ( PanSTARRS ) It brightened up to 13.8 mag in winter (Dec. 30, Thomas Lehmann). Now it is 16.4 mag (Apr. 4, Ken-ichi Kadota). Fading gradually. It will be fainter than 18 mag in July. In the Northern Hemisphere, it will be getting lower gradually. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 8 43.43 47 54.3 2.919 3.004 85 16.6 20:13 (131, 67) May 3 8 52.55 45 49.5 3.031 3.042 81 16.7 20:21 (123, 63) C/2019 U5 ( PanSTARRS ) Now it is 16.5 mag (Apr. 6, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. 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) Apr. 26 5 25.67 -38 35.2 7.568 7.263 68 16.6 20:13 ( 51,-12) May 3 5 27.44 -38 0.1 7.653 7.308 66 16.7 20:21 ( 55,-17) 47P/Ashbrook-Jackson Now it is 17.2 mag (Apr. 7, E. Cortes, B. Lutkenhoner). 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) Apr. 26 22 24.23 -18 55.6 3.280 2.998 65 16.9 3:43 (299, 7) May 3 22 32.85 -18 6.1 3.183 2.985 69 16.8 3:33 (300, 9) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 16.1 mag (Apr. 7, 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) Apr. 26 5 30.44 24 35.3 9.152 8.507 47 16.8 20:13 (103, 26) May 3 5 32.85 24 46.1 9.289 8.559 41 16.9 20:21 (107, 19) 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 16.2 mag (Apr. 16, 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. 26 18 44.46 -24 2.1 3.367 3.908 115 16.8 3:43 (348, 30) May 3 18 41.69 -24 40.2 3.334 3.974 122 17.0 3:33 (353, 30) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. Now it is 16.3 mag (Apr. 15, 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. 26 22 18.98 -64 2.6 7.193 7.250 89 16.9 3:43 (335,-21) May 3 22 19.91 -64 51.4 7.162 7.303 94 16.9 3:33 (336,-20) 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 17.2 mag (Apr. 8, Masayoshi Yoshimi). It stays 17 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. 26 23 19.62 36 47.2 5.981 5.320 45 17.0 3:43 (242, 27) May 3 23 24.34 37 28.8 6.002 5.384 48 17.0 3:33 (243, 30) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.9 mag (Dec. 20, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now. 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. 26 1 16.43 -53 28.7 11.026 10.690 67 17.0 3:43 (314,-39) May 3 1 19.06 -53 19.5 10.984 10.700 71 17.0 3:33 (314,-36) C/2019 L3 ( ATLAS ) It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 18.9 mag (Apr. 14, Jean-Claude Merlin). 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. 26 11 58.35 -59 9.9 9.437 10.086 127 17.0 21:40 ( 0, -4) May 3 11 55.74 -58 44.7 9.486 10.129 127 17.0 21:10 ( 0, -4) C/2024 G2 ( ATLAS ) Now it is 17.1 mag (Apr. 17, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, 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) Apr. 26 11 19.29 -35 30.1 4.600 5.360 135 17.1 21:01 ( 0, 19) May 3 11 14.57 -33 35.6 4.647 5.357 130 17.1 20:29 ( 0, 21) 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. 25, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in August. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after July. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 5 43.49 -21 58.6 7.436 7.027 62 17.1 20:13 ( 62, 1) May 3 5 46.39 -21 11.1 7.547 7.075 58 17.2 20:21 ( 67, -4) 88P/Howell It will brighten up to 9 mag in 2026 spring. Now it is 17.6 mag (Apr. 16, Ken-ichi Kadota). Brightening slowly. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in August. 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. 26 10 17.67 15 56.6 2.583 3.140 114 17.2 20:13 ( 10, 71) May 3 10 17.10 15 46.8 2.640 3.102 107 17.1 20:21 ( 33, 68) 195P/Hill Now it is 17.3 mag (Mar. 30, ATLAS South Africa). It stays 17 mag for a while. 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) Apr. 26 6 41.79 -5 33.0 4.721 4.465 69 17.2 20:13 ( 65, 23) May 3 6 47.06 -5 24.2 4.800 4.461 64 17.2 20:21 ( 70, 17) 472P/2023 RL75 ( NEAT-LINEAR ) It brightened up to 15.2 mag in winter (Dec. 30, ATLAS-MLO, Mauna Loa). Now it is 16.4 mag (Apr. 13, ATLAS-MLO, Mauna Loa). Fading slowly. It will be fainter than 18 mag in June. It locates somewhat low. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 6 48.39 12 51.4 4.201 3.914 66 17.2 20:13 ( 80, 35) May 3 6 55.36 12 54.7 4.314 3.937 61 17.4 20:21 ( 85, 30) C/2024 B1 ( Lemmon ) It brightened up to 13.1 mag in autumn (Nov. 1, Thomas Lehmann). Now it is 16.5 mag (Apr. 6, ATLAS-HKO, Haleakala). 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. 26 17 45.89 12 24.7 2.347 2.997 121 17.2 3:31 ( 0, 67) May 3 17 37.69 11 47.7 2.335 3.063 128 17.4 2:55 ( 0, 67) 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 17.9 mag (Mar. 14, ATLAS Chile). 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) Apr. 26 16 47.61 -51 39.7 4.085 4.804 130 17.3 2:33 ( 0, 3) May 3 16 39.16 -51 28.6 4.083 4.868 136 17.3 1:58 ( 0, 3) C/2024 X2 ( ATLAS ) Now it is 17.0 mag (Apr. 12, ATLAS Chile). It stays 18 mag for a while. It will be unobservable in May in the Northern Hemisphere, or in July in the Southern Hemisphere. But it will be observable again in August in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 7 29.01 -35 8.2 3.612 3.730 88 17.3 20:13 ( 36, 8) May 3 7 31.97 -32 20.7 3.678 3.720 84 17.3 20:21 ( 43, 6) (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. It will be unobservable in June in the Northern Hemisphere, or in August in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 5 41.91 0 11.4 2.316 1.894 53 17.4 20:13 ( 80, 15) May 3 5 58.85 1 2.9 2.333 1.872 51 17.3 20:21 ( 83, 12) 362P/(457175) 2008 GO98 Now it is 17.4 mag (Sept. 20, Taras Prystavski). 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. 26 21 27.68 -0 38.1 3.372 3.210 72 17.4 3:43 (294, 30) May 3 21 33.66 0 8.4 3.297 3.225 77 17.3 3:33 (296, 32) P/2010 LH155 It brightened very rapidly. Now it is 17.6 mag (Apr. 15, ATLAS South Africa). Fading gradually. It will be fainter than 18 mag in May. In the Northern Hemisphere, it will be getting lower gradually. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 10 3.09 2 35.8 1.596 2.228 115 17.4 20:13 ( 13, 57) May 3 10 9.23 2 47.7 1.667 2.231 110 17.6 20:21 ( 25, 55) 302P/Lemmon-PanSTARRS Now it is 17.3 mag (Oct. 31, ATLAS Chile). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in summer. 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. 26 23 32.74 -6 16.6 3.937 3.296 44 17.5 3:43 (279, 2) May 3 23 41.34 -5 30.7 3.870 3.298 49 17.5 3:33 (279, 4) C/2024 G6 ( ATLAS ) Now it is 17.4 mag (Apr. 1, 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) Apr. 26 17 4.64 -24 16.6 5.960 6.744 138 17.7 2:50 ( 0, 31) May 3 16 59.61 -23 38.3 5.868 6.730 146 17.6 2:17 ( 0, 31) C/2023 V1 ( Lemmon ) Now it is 17.7 mag (Apr. 16, Ken-ichi Kadota). 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, but it will appear in August. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 19 8.04 59 23.1 5.088 5.127 86 17.7 3:43 (200, 63) May 3 18 57.13 60 35.7 5.050 5.121 88 17.7 3:33 (191, 64) C/2024 G4 ( PanSTARRS ) Now it is 18.3 mag (Apr. 14, J. L. Virlichie, P. Traverse, H. Roy). 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. 26 17 6.40 15 43.5 4.836 5.516 128 17.8 2:51 ( 0, 71) May 3 17 5.26 16 12.7 4.765 5.492 132 17.8 2:22 ( 0, 71) C/2024 N4 ( Sarneczky ) Now it is 17.9 mag (Apr. 7, Ken-ichi Kadota). 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. 26 7 49.73 57 16.6 5.618 5.455 75 17.8 20:13 (142, 55) May 3 7 55.51 56 3.0 5.708 5.462 70 17.8 20:21 (138, 52) 499P/2025 A5 ( Catalina ) It approached to Earth down to 0.3 a.u. in March, and it brightened up to 16.2 mag (Mar. 4, Alfons Diepvens). Now it is 17.1 mag (Apr. 4, Ken-ichi Kadota). Fading rapidly. 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) Apr. 26 12 35.54 66 31.8 0.523 1.197 98 17.9 22:20 (180, 59) May 3 13 7.73 60 44.1 0.578 1.258 101 18.3 22:23 (180, 65) C/2022 U1 ( Leonard ) Now it is 17.8 mag (Apr. 7, W. Hasubick). 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. 26 19 36.49 15 33.5 5.127 5.312 95 17.9 3:43 (305, 61) May 3 19 32.53 15 45.3 5.055 5.346 101 17.9 3:33 (313, 64) (431760) 2008 HE It approached to Sun down to 0.11 a.u. on Mar. 9. Now it is 17.9 mag (Apr. 18, ATLAS Chile). It will fade out rapidly after this. In the Northern Hemisphere, it will be getting lower gradually. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 9 11.98 6 15.5 0.534 1.238 102 18.9 20:13 ( 36, 56) May 3 9 46.05 5 36.9 0.694 1.357 104 19.5 20:21 ( 36, 55) 105P/Singer Brewster It became much fainter than predicted after the perihelion passage. Now it is 20.0 mag (Mar. 12, Taras Prystavski). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Apr. 26 20 8.66 -9 19.7 1.866 2.170 93 19.6 3:43 (319, 36) May 3 20 16.24 -8 24.0 1.807 2.188 97 19.6 3:33 (321, 38)