Weekly Information about Bright Comets (2026 Oct. 24: North)

Japanese version Home page	Updated on October 31, 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.

161P/Hartley-IRAS Now it is 10.3 mag (Oct. 29, Chris Wyatt). It will fade out rapidly after this. In the Northern Hemisphere, it will be getting lower gradually. But it will be getting higher again after January. In the Southern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 20 21.73 10 59.7 0.769 1.351 99 10.6 18:39 ( 17, 65) Oct. 31 19 57.65 13 27.4 0.905 1.321 88 10.7 18:32 ( 42, 63) 10P/Tempel 2 It brightened up to 6.9 mag in summer (Aug. 5, Juan Jose Gonzalez). Now it is 11.0 mag (Oct. 29, Chris Wyatt). It will fade out rapidly after this. 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) Oct. 24 23 12.99 -28 37.5 0.876 1.655 124 10.9 21:03 ( 0, 27) Oct. 31 23 21.71 -26 43.8 0.953 1.692 120 11.2 20:44 ( 0, 29) 252P/LINEAR It has not been observed yet in this apparition. It has brightened up to 4 mag in 2016, and 10 mag in 2021. It brightens up to 11.5 mag, but it will turn to fade out rapidly after that. It stays extremely low in the Northern Hemisphere. In the Southern Hemisphere, it is not observable now, but it will appear in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 12 5.45 -4 16.7 1.799 1.024 27 12.3 4:48 (281, 8) Oct. 31 12 36.01 -6 41.2 1.797 1.009 26 11.9 4:54 (283, 7) C/2024 T5 ( ATLAS ) Now it is 12.6 mag (Oct. 22, Osamu Miyazaki). It stays 12 mag for a while. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 5 45.59 -13 39.9 3.651 4.197 116 12.5 3:38 ( 0, 41) Oct. 31 5 44.09 -13 36.8 3.557 4.173 122 12.5 3:09 ( 0, 41) C/2026 A2 ( Bok ) Now it is 13.1 mag (Oct. 28, Yoshimi Nagai). Fading slowly. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it is not observable now, but it will appear in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 19 34.21 59 19.3 1.689 2.070 97 13.2 18:39 (159, 63) Oct. 31 20 1.79 55 15.6 1.637 2.042 98 13.1 18:32 (155, 67) 11P/Tempel-Swift-LINEAR Now it is 14.7 mag (Oct. 17, Alfons Diepvens). It will turn to fade out rapidly after the peak. It will be fainter than 18 mag in February. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 2 27.55 35 20.2 0.434 1.400 154 13.6 0:20 (180, 89) Oct. 31 2 36.08 32 18.8 0.415 1.392 161 13.1 0:01 ( 0, 88) P/2026 R2 ( Leonard ) Bright new comet. It approached to Earth down to 0.3 a.u. in early October, and brightened up to 11.7 mag (Sept. 30, Thomas Lehmann). Now it is 14.2 mag (Oct. 29, Chris Wyatt). It will fade out rapidly after this. It will be fainter than 18 mag in January. 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) Oct. 24 16 21.53 -55 7.7 0.556 0.790 52 13.2 18:39 ( 33,-17) Oct. 31 16 8.51 -62 58.3 0.707 0.797 52 13.8 18:32 ( 29,-25) 220P/McNaught Major outburst of about 9 mag occured from May 31 to June 1, and it brightened up to 8.3 mag (June 3, Marco Goiato). Another major outburst occued on Aug. 5 and it brightened up to 6.4 mag (Aug. 6, Taras Prystavski). Now it is 12.3 mag (Oct. 28, Alfons Diepvens). It will fade out rapidly after this. It will be fainter than 18 mag in January. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 3 20.31 3 7.1 1.030 1.983 156 13.5 1:13 ( 0, 58) Oct. 31 3 13.95 2 27.3 1.051 2.020 162 13.8 0:39 ( 0, 58) C/2024 J3 ( ATLAS ) Now it is 13.7 mag (Oct. 27, Yoshimi Nagai). It stays 14 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) Oct. 24 18 31.09 41 4.0 3.873 3.876 82 13.7 18:39 (113, 62) Oct. 31 18 34.85 40 54.9 3.911 3.872 80 13.7 18:32 (113, 59) 78P/Gehrels 2 Now it is 13.3 mag (Oct. 13, Thomas Lehmann). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 7 50.79 14 39.7 1.940 2.231 93 13.9 4:48 (326, 66) Oct. 31 7 57.44 13 55.9 1.883 2.255 98 13.9 4:54 (342, 68) 260P/McNaught It brightened up to 13 mag from summer to autumn. Now it is 14.7 mag (Oct. 28, Alfons Diepvens). It will fade out rapidly after this. It will be fainter than 18 mag in January. 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) Oct. 24 6 18.18 47 50.6 0.991 1.668 114 14.0 4:11 (180, 77) Oct. 31 6 22.02 49 10.0 0.984 1.708 119 14.2 3:47 (180, 76) 88P/Howell It brightened up to 9.6 mag in the very low sky in spring (Apr. 14, Chris Wyatt). Now it is 14.4 mag (Oct. 22, Toru Yusa). It will fade out rapidly after this. It will be fainter than 18 mag in February. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 2 46.36 13 39.5 1.522 2.501 166 14.1 0:39 ( 0, 69) Oct. 31 2 38.33 13 14.7 1.555 2.546 175 14.3 0:04 ( 0, 68) P/2026 T1 ( ATLAS ) Bright new comet. It must be just in outburst. Now it is 14.4 mag (Oct. 18, Michael Jager). It stays 15 mag for a while. It will be getting lower gradually after this, and it will be unobservable in January in the Northern Hemisphere, or in December in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 19 24.44 -5 9.2 3.533 3.537 82 14.2 18:39 ( 31, 45) Oct. 31 19 30.79 -5 18.8 3.631 3.541 76 14.3 18:32 ( 35, 43) 29P/Schwassmann-Wachmann 1 Now it is 13.6 mag (Aug. 2, Andrew Pearce). In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it will be unobservable temporarily in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 12 19.55 -9 11.5 7.222 6.318 22 14.3 4:48 (283, 2) Oct. 31 12 24.03 -9 45.6 7.172 6.318 28 14.3 4:54 (288, 7) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. Now it is 14.2 mag (Oct. 4, Andrew Pearce). It stays 14 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) Oct. 24 7 43.81 -73 14.0 13.650 13.505 79 14.5 4:48 (357,-19) Oct. 31 7 45.00 -73 41.3 13.639 13.485 79 14.5 4:54 (359,-19) C/2024 R4 ( PanSTARRS ) Now it is 14.3 mag (Oct. 17, Toru Yusa). It stays 14 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 19 43.96 44 45.8 5.106 5.313 96 14.5 18:39 (133, 74) Oct. 31 19 41.67 44 0.5 5.136 5.283 93 14.5 18:32 (125, 71) 169P/NEAT It approached to Earth down to 0.17 a.u. mid August, and brightened up to 10.8 mag (Aug. 11, Thomas Lehmann). Now it is 14.5 mag (Oct. 22, Toru Yusa). Fading rapidly. It will be fainter than 18 mag in November. It will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 10 49.20 -1 7.4 1.137 0.854 46 14.7 4:48 (291, 25) Oct. 31 11 4.95 -2 29.2 1.210 0.940 49 15.7 4:54 (295, 27) 123P/West-Hartley Now it is 15.9 mag (Oct. 12, M. Jaeger, G. Rhemann, E. Prosperi). It stays 15 mag for a while. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now, but it will appear in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 12 6.51 10 23.1 2.922 2.173 34 14.9 4:48 (269, 16) Oct. 31 12 20.28 8 48.4 2.885 2.180 37 14.9 4:54 (273, 19) C/2023 R1 ( PanSTARRS ) Now it is 14.7 mag (Sept. 19, Mike Olason). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now, but it will appear in December. In the Southern Hemisphere, it will be unobservable in November. But it will be observable again in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 15 30.95 -19 40.0 4.854 3.975 25 15.0 18:39 ( 68, -3) Oct. 31 15 32.72 -20 15.4 4.931 4.003 18 15.1 18:32 ( 70, -7) (3200) Phaethon Parent object of Geminids meteor shower. It approached to Sun down to 0.14 a.u. on Sept. 2. Now it is 14.5 mag (Oct. 12, Katsumi Yoshimoto). It will fade out rapidly after this. It will be fainter than 18 mag in December. 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) Oct. 24 20 26.44 45 39.6 0.476 1.203 104 15.0 18:39 (161, 79) Oct. 31 21 14.70 38 29.3 0.572 1.300 109 15.4 18:39 (180, 87) C/2025 V2 ( Rankin ) It is expected to brighten up to 12.5 mag in 2027 spring. Now it is 16.5 mag (Oct. 25, Martin Masek). Brightening gradually. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it is not observable now, but it will appear in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 12 41.27 14 58.4 3.442 2.649 31 15.4 4:48 (260, 12) Oct. 31 12 55.26 14 25.7 3.344 2.596 35 15.3 4:54 (263, 15) C/2025 Y1 ( ATLAS ) Now it is 16.1 mag (Aug. 5, Ken-ichi Kadota). Brightening slowly. Now it is not observable. It will appear in November in the Northern Hemisphere, or in December in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 14 4.03 -3 45.6 5.398 4.416 8 15.6 18:39 ( 93,-11) Oct. 31 14 11.54 -4 19.2 5.339 4.364 9 15.5 4:54 (268,-11) C/2022 QE78 ( ATLAS ) Now it is 16.7 mag (Oct. 19, D. Buczynski). It stays 16 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 December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 11 30.24 26 15.8 6.799 6.225 51 15.6 4:48 (258, 32) Oct. 31 11 35.68 26 17.3 6.740 6.249 56 15.6 4:54 (262, 37) C/2022 N2 ( PanSTARRS ) Now it is 16.1 mag (Oct. 9, Ken-ichi Kadota). It stays 16 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) Oct. 24 7 34.06 25 22.0 5.160 5.406 99 15.9 4:48 (317, 77) Oct. 31 7 35.31 25 20.7 5.093 5.446 105 15.9 4:54 (352, 80) C/2025 M2 ( PanSTARRS ) It is expected to brighten up to 12 mag from 2027 to 2028. Now it is 15.5 mag (Oct. 14, Jean-Gabriel Bosch). Brightening slowly. It will be unobservable in December. But it will be observable again in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 18 38.57 -21 26.5 5.005 4.736 68 15.9 18:39 ( 34, 26) Oct. 31 18 37.81 -21 25.1 5.075 4.685 61 15.9 18:32 ( 39, 23) 112P/Urata-Niijima Now it is 16.0 mag (Oct. 17, Toru Yusa). It will fade out rapidly after this. It will be fainter than 18 mag in January. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 8 24.35 43 34.4 1.062 1.484 92 16.1 4:48 (237, 71) Oct. 31 8 48.48 45 12.1 1.048 1.503 94 16.1 4:54 (230, 72) 2P/Encke It will brighten up to 6-7 mag from January to February. Now it is 16.4 mag (Oct. 7, D. Buczynski). It will brighten rapidly after this. It will be getting lower gradually after this, and it will be unobservable in January in the Southern Hemisphere, or in February in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 23 54.74 16 38.0 0.975 1.907 151 16.4 21:43 ( 0, 72) Oct. 31 23 37.07 14 56.5 0.947 1.827 140 16.2 20:57 ( 0, 70) 114P/Wiseman-Skiff Now it is 16.8 mag (Oct. 22, Toru Yusa). Fading gradually. It will be fainter than 18 mag in February. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 9 30.53 9 31.7 1.696 1.620 68 16.3 4:48 (297, 47) Oct. 31 9 44.63 6 53.6 1.661 1.639 71 16.4 4:54 (304, 48) 84P/Giclas Now it is 17.2 mag (Oct. 11, 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 be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 20 39.47 -25 25.3 1.646 2.001 95 16.4 18:39 ( 2, 30) Oct. 31 20 48.86 -24 50.7 1.691 1.971 90 16.4 18:32 ( 5, 30) C/2021 G2 ( ATLAS ) Now it is 16.1 mag (Oct. 15, Toru Yusa). It stays 17 mag for a while. In the Northern Hemisphere, it will be getting lower gradually. But it will be getting higher again after December. In the Southern Hemisphere, it will be unobservable in November. But it will be observable again in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 17 18.10 12 3.3 8.090 7.582 56 16.4 18:39 ( 78, 37) Oct. 31 17 21.82 11 51.9 8.189 7.618 52 16.5 18:32 ( 81, 34) C/2025 J1 ( Borisov ) Now it is 16.7 mag (Oct. 17, Ken-ichi Kadota). 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) Oct. 24 7 10.42 7 53.2 3.449 3.780 101 16.5 4:48 (352, 63) Oct. 31 7 6.56 6 2.9 3.358 3.801 109 16.4 4:31 ( 0, 61) C/2026 AZ17 ( Bok ) Now it is 16.7 mag (Oct. 18, ATLAS-HKO, Haleakala). It stays 17 mag for a while. It will be unobservable in January in the Northern Hemisphere, or in December in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 18 0.29 -2 4.6 2.799 2.494 62 16.7 18:39 ( 56, 36) Oct. 31 18 13.13 -3 32.6 2.855 2.485 58 16.7 18:32 ( 56, 33) C/2022 R6 ( PanSTARRS ) It was observed at 16 mag from 2025 to 2026. Now it is 17.2 mag (Oct. 24, ATLAS-HKO, Haleakala). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 10 14.63 5 6.2 7.647 7.149 56 17.0 4:48 (292, 35) Oct. 31 10 17.62 5 9.2 7.564 7.167 62 16.9 4:54 (298, 41) 346P/Catalina Now it is 17.3 mag (Oct. 21, ATLAS-HKO, Haleakala). 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) Oct. 24 9 3.04 19 7.4 2.319 2.319 77 17.1 4:48 (291, 58) Oct. 31 9 13.64 19 23.7 2.252 2.336 82 17.0 4:54 (298, 62) 493P/2024 Q2 ( LONEOS ) Now it is 17.7 mag (Sept. 25, P.-J. Dekelver). 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) Oct. 24 10 8.14 30 57.3 4.433 4.173 68 17.0 4:48 (262, 50) Oct. 31 10 14.00 30 38.8 4.355 4.189 73 17.0 4:54 (266, 55) P/2018 VN2 = P/2026 M2 ( Leonard ) First return of a new periodic comet which was observed at 18 mag in 2018. Now it is 16.5 mag (Oct. 21, ATLAS-MLO, Mauna Loa). Fading gradually. It will be fainter than 18 mag in December. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 1 55.62 20 45.2 1.205 2.193 170 17.0 23:44 ( 0, 76) Oct. 31 1 52.39 18 55.0 1.221 2.208 171 17.1 23:14 ( 0, 74) C/2026 O1 ( PanSTARRS ) Now it is 17.1 mag (Oct. 17, Ken-ichi Kadota). Brightening slowly. It will be unobservable in January in the Northern Hemisphere, or in February in the Southern Hemisphere. At the high light, it will be observable in good condition in the Southern Hemisphere, but it will not be observable in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 22 17.06 -30 51.3 3.146 3.653 113 17.1 20:06 ( 0, 24) Oct. 31 22 8.96 -31 31.4 3.201 3.585 104 17.1 19:31 ( 0, 24) C/2025 A1 ( Lemmon ) Now it is 16.8 mag (Oct. 8, Kunihiro Shima). It stays 17 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 December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 11 18.32 30 16.6 5.938 5.443 55 17.2 4:48 (255, 36) Oct. 31 11 25.12 30 15.0 5.846 5.433 60 17.2 4:54 (258, 41) C/2025 E1 ( PanSTARRS ) Now it is 17.6 mag (Sept. 12, 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 stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 14 18.91 -80 22.8 4.256 4.007 68 17.2 18:39 ( 12,-35) Oct. 31 15 20.25 -80 56.3 4.287 4.011 67 17.2 18:32 ( 11,-34) C/2025 R3 ( PanSTARRS ) It brightened up to 4.0 mag in late April (Apr. 30, Chris Wyatt). It brightened up to 1.3 mag due to the forward scattering in the SOHO LASCO images (Apr. 25, Mikolaj Kaszczyk). It faded down to 13.4 mag until summer (Aug. 15, Thomas Lehmann). Fading gradually. It will be fainter than 18 mag in November. 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) Oct. 24 7 13.89 -30 32.8 2.977 3.176 92 17.4 4:48 (356, 24) Oct. 31 7 5.21 -31 50.7 2.977 3.264 97 17.5 4:29 ( 0, 23) 188P/LINEAR-Mueller Now it is 18.0 mag (Oct. 17, Ken-ichi Kadota). Fading slowly. It will be fainter than 18 mag in January. 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) Oct. 24 6 28.37 36 5.0 2.316 2.864 113 17.5 4:21 (180, 89) Oct. 31 6 29.92 36 34.8 2.256 2.885 120 17.5 3:55 (180, 88) C/2019 E3 ( ATLAS ) Very far object. It stays 18 mag for a while. In the Northern Hemisphere, it will be unobservable in February. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 23 56.69 -44 37.4 11.272 11.772 118 17.5 21:46 ( 0, 11) Oct. 31 23 53.69 -44 17.5 11.366 11.789 113 17.5 21:15 ( 0, 11) C/2026 P2 ( PanSTARRS ) It is expected to brighten up to 13.5 mag from late 2027 to early 2028. At the high light, it will be observable in good condition in the Northern Hemisphere. But it will not be observable in the Southern Hemisphere. Now it is 17.0 mag (Oct. 22, ATLAS South Africa). It stays 17 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 1 16.43 -1 27.9 3.729 4.694 164 17.6 23:05 ( 0, 54) Oct. 31 1 9.91 -1 13.4 3.710 4.640 157 17.5 22:31 ( 0, 54) P/2009 Y2 ( Kowalski ) Now it is 18.2 mag (Oct. 6, Toshiyuki Takahashi). 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. But it will become high in winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 5 27.05 38 8.2 1.677 2.396 125 17.7 3:20 (180, 87) Oct. 31 5 27.86 37 4.0 1.604 2.387 132 17.6 2:53 (180, 88) C/2022 E2 ( ATLAS ) It was observed at 12-13 mag for a long time in 2024. Now it is 17.2 mag (Oct. 12, Thomas Lehmann). 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) Oct. 24 21 46.17 22 8.3 6.781 7.336 120 17.6 19:35 ( 0, 77) Oct. 31 21 44.18 21 10.9 6.913 7.380 114 17.7 19:06 ( 0, 76) C/2025 B2 ( Borisov ) Now it is 17.5 mag (Oct. 20, ATLAS-HKO, Haleakala). 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) Oct. 24 17 16.12 71 14.3 8.191 8.243 89 17.6 18:39 (159, 44) Oct. 31 17 23.65 70 13.1 8.186 8.244 89 17.6 18:32 (157, 44) C/2024 G4 ( PanSTARRS ) Now it is 17.9 mag (Oct. 11, Ken-ichi Kadota). It stays 18 mag for a while. It will be getting lower gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 20 10.62 -7 44.5 5.033 5.179 92 17.7 18:39 ( 14, 46) Oct. 31 20 14.24 -8 13.5 5.156 5.196 86 17.7 18:32 ( 20, 45) C/2026 S2 ( ATLAS ) Now it is 18.1 mag (Oct. 8, M. Jaeger, G. Rhemann, E. Prosperi). 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) Oct. 24 6 3.66 -0 56.7 4.203 4.730 116 17.9 3:56 ( 0, 54) Oct. 31 5 55.96 -1 35.9 4.080 4.710 124 17.8 3:21 ( 0, 53) C/2023 X2 ( Lemmon ) Now it is 17.8 mag (July 6, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. 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) Oct. 24 15 22.89 51 9.4 5.905 5.570 65 17.8 18:39 (133, 31) Oct. 31 15 30.55 50 4.7 5.923 5.592 65 17.8 18:32 (133, 29) 373P/Rinner It has not been observed yet in this apparition. It has brightened up to 4 mag in 2016, and 10 mag in 2021. It was not detected, fainter than 20 mag on Sept. 14 (Jean-Francois Soulier). 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) Oct. 24 8 51.33 5 42.0 2.342 2.327 76 17.9 4:48 (311, 50) Oct. 31 9 0.34 4 18.6 2.272 2.335 81 17.8 4:54 (321, 53) 93P/Lovas 1 Now it is 18.0 mag (Oct. 8, Kunihiro Shima). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 10 26.11 15 4.1 2.776 2.395 57 17.9 4:48 (279, 39) Oct. 31 10 35.32 13 59.8 2.741 2.439 62 18.0 4:54 (285, 43) 65P/Gunn Now it is 17.6 mag (Oct. 9, Ken-ichi Kadota). Fading slowly. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 0 15.16 -9 5.3 2.798 3.681 148 17.9 22:04 ( 0, 46) Oct. 31 0 11.98 -9 4.1 2.872 3.696 140 18.0 21:33 ( 0, 46) 69P/Taylor It has not been observed yet in this apparition. 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) Oct. 24 7 15.94 11 49.1 1.863 2.275 101 18.1 4:48 (348, 66) Oct. 31 7 22.43 12 13.0 1.781 2.272 106 17.9 4:47 ( 0, 67) SWAN26Q New comet discovered on Aug. 24 from SWAN images by Hanjie Tan. Although it was bright as 11 mag at the discovery, it faded down to 14 mag on Sept. 9. It was not detected, fainter than 16 mag, on Oct. 8. (Mike Olason). Fading rapidly. It will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 24 11 24.93 -4 9.5 1.890 1.253 37 20.4 4:48 (287, 16) Oct. 31 11 22.15 -6 56.9 1.910 1.381 44 20.9 4:54 (295, 21)