Weekly Information about Bright Comets (2026 Oct. 17: South)

Japanese version Home page	Updated on October 20, 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.

161P/Hartley-IRAS Now it is 10.3 mag (Oct. 9, Toru Yusa). 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. 17 20 58.02 7 27.3 0.644 1.388 113 10.5 19:44 (169, 47) Oct. 24 20 21.73 10 59.7 0.769 1.351 99 10.6 19:52 (147, 38) 10P/Tempel 2 It brightened up to 6.9 mag in summer (Aug. 5, Juan Jose Gonzalez). Now it is 11.2 mag (Oct. 13, Yoshimi Nagai). 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. 17 23 4.66 -30 23.9 0.804 1.621 127 10.5 21:22 (180, 85) Oct. 24 23 12.99 -28 37.5 0.876 1.655 124 10.9 21:03 (180, 83) 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. 17 11 35.24 -1 48.5 1.810 1.048 28 12.8 3:47 (273, 0) Oct. 24 12 5.45 -4 16.7 1.799 1.024 27 12.3 3:36 (276, -2) C/2024 T5 ( ATLAS ) Now it is 13.0 mag (Oct. 14, 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. 17 5 46.26 -13 38.7 3.752 4.222 111 12.6 3:47 (193, 68) Oct. 24 5 45.59 -13 39.9 3.651 4.197 116 12.5 3:36 (181, 69) P/2026 R2 ( Leonard ) Bright new comet. It approached to Earth down to 0.3 a.u. in early October. Now it is 11.8 mag (Oct. 12, Mike Olason). 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. 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. 17 16 28.51 -40 37.8 0.418 0.804 51 12.7 19:44 ( 59, 33) Oct. 24 16 21.53 -55 7.7 0.556 0.790 52 13.2 19:52 ( 41, 31) C/2026 A2 ( Bok ) Now it is 12.5 mag (Oct. 12, Thomas Lehmann). 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, but it will appear in November. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 19 5.71 62 49.2 1.753 2.102 95 13.4 19:44 (164,-12) Oct. 24 19 34.21 59 19.3 1.689 2.070 97 13.2 19:52 (162, -9) 11P/Tempel-Swift-LINEAR Now it is 15.0 mag (Oct. 12, D. Buczynski). It brightens up to 13 mag, but it will turn to fade out rapidly after that. 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. 17 2 18.51 37 33.5 0.461 1.413 149 14.3 0:39 (180, 17) Oct. 24 2 27.55 35 20.2 0.434 1.400 154 13.6 0:20 (180, 19) C/2024 J3 ( ATLAS ) Now it is 12.9 mag (Oct. 1, Osamu Miyazaki). 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 soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 18 28.28 41 17.8 3.833 3.881 85 13.6 19:44 (148, 3) Oct. 24 18 31.09 41 4.0 3.873 3.876 82 13.7 19:52 (143, 0) 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 12.5 mag (Oct. 8, Ken Harikae). Fading rapidly. It will be fainter than 18 mag in November. In the Northern Hemisphere, it will be getting higher gradually. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 10 32.40 0 22.0 1.050 0.773 44 13.7 3:47 (262, 11) Oct. 24 10 49.20 -1 7.4 1.137 0.854 46 14.7 3:36 (263, 12) 260P/McNaught Now it is 13.8 mag (Oct. 7, Kunihiro Shima). 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. 17 6 11.18 46 25.3 1.001 1.631 109 13.8 3:47 (188, 8) Oct. 24 6 18.18 47 50.6 0.991 1.668 114 14.0 3:36 (186, 7) 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. 17 7 42.92 15 24.6 1.997 2.207 88 13.8 3:47 (219, 30) Oct. 24 7 50.79 14 39.7 1.940 2.231 93 13.9 3:36 (217, 32) 88P/Howell It brightened up to 9.6 mag in the very low sky in spring (Apr. 14, Chris Wyatt). Now it is 13.5 mag (Oct. 14, Toru Yusa). 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) Oct. 17 2 54.22 14 3.3 1.504 2.456 157 13.9 1:15 (180, 41) Oct. 24 2 46.36 13 39.5 1.522 2.501 166 14.1 0:39 (180, 41) A11InDq Bright new comet discovered at 14 mag on Oct. 12 in the course of ATLAS search program. It must be just in outburst. Now it is 14.0 mag (Oct. 14, Ken-ichi Kadota). 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. 17 19 18.67 -4 56.2 3.468 3.564 87 14.2 19:44 (128, 48) Oct. 24 19 24.44 -5 9.3 3.564 3.566 82 14.3 19:52 (120, 43) 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 12.4 mag (Oct. 14, Toru Yusa). Fading rapidly. It will be fainter than 18 mag in November. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 3 25.84 3 54.5 1.019 1.946 149 14.3 1:46 (180, 51) Oct. 24 3 20.31 3 7.1 1.030 1.983 156 15.0 1:13 (180, 52) 29P/Schwassmann-Wachmann 1 Now it is 13.6 mag (Aug. 2, Andrew Pearce). In the Northern Hemisphere, it will be unobservable soon. But it will be observable again in October. 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. 17 12 14.97 -8 37.2 7.261 6.318 17 14.3 3:47 (284, -5) Oct. 24 12 19.55 -9 11.5 7.222 6.318 22 14.3 3:36 (283, -2) 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. 17 7 41.87 -72 46.3 13.660 13.526 80 14.5 3:47 (346, 49) Oct. 24 7 43.81 -73 14.0 13.650 13.505 79 14.5 3:36 (348, 49) C/2024 R4 ( PanSTARRS ) Now it is 14.5 mag (Oct. 15, 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. 17 19 47.25 45 33.0 5.077 5.344 100 14.5 19:44 (163, 6) Oct. 24 19 43.96 44 45.8 5.106 5.313 96 14.5 19:52 (156, 4) (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. 17 19 1.75 53 10.7 0.404 1.099 93 14.8 19:44 (160, -3) Oct. 24 20 26.44 45 39.6 0.476 1.203 104 15.0 19:52 (164, 7) 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. 17 11 52.47 11 58.7 2.956 2.168 31 14.9 3:47 (264,-12) Oct. 24 12 6.51 10 23.1 2.922 2.173 34 14.9 3:36 (265,-10) 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. 17 15 29.44 -19 4.4 4.764 3.948 31 15.0 19:44 ( 74, 11) Oct. 24 15 30.95 -19 40.0 4.854 3.975 25 15.0 19:52 ( 69, 5) C/2025 V2 ( Rankin ) It is expected to brighten up to 12.5 mag in 2027 spring. 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. 17 12 27.69 15 32.1 3.537 2.704 28 15.6 3:47 (265,-21) Oct. 24 12 41.27 14 58.4 3.442 2.649 31 15.4 3:36 (265,-20) C/2022 QE78 ( ATLAS ) Now it is 15.5 mag (June 14, Alfons Diepvens). It stays 16 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. 17 11 24.58 26 17.4 6.852 6.201 46 15.6 3:47 (248,-14) Oct. 24 11 30.24 26 15.8 6.799 6.225 51 15.6 3:36 (246,-12) 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. 17 13 56.70 -3 11.2 5.447 4.468 9 15.7 19:44 ( 74,-16) Oct. 24 14 4.03 -3 45.6 5.398 4.416 8 15.6 19:52 ( 69,-21) 63P/Wild 1 It brightened up to 13.0 mag in early summer (July 3, Thomas Lehmann). It will fade out rapidly after this. It will be fainter than 18 mag in December. Now it is not observable. It will appear in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 13 28.59 -16 55.7 3.197 2.214 7 15.8 19:44 ( 58,-12) Oct. 24 13 42.77 -18 49.3 3.226 2.244 7 16.0 3:36 (303,-11) C/2022 N2 ( PanSTARRS ) Now it is 15.9 mag (Sept. 23, Thomas Lehmann). 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. 17 7 32.15 25 24.6 5.230 5.367 92 15.9 3:47 (211, 23) Oct. 24 7 34.06 25 22.0 5.160 5.406 99 15.9 3:36 (207, 24) C/2025 M2 ( PanSTARRS ) It is expected to brighten up to 12 mag from 2027 to 2028. Now it is 15.9 mag (Aug. 28, Jean-Claude Merlin). 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. 17 18 40.03 -21 27.1 4.929 4.788 76 15.9 19:44 ( 99, 51) Oct. 24 18 38.57 -21 26.5 5.005 4.736 68 15.9 19:52 ( 93, 44) 112P/Urata-Niijima Now it is 16.5 mag (Oct. 14, 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. 17 7 59.36 41 47.7 1.079 1.467 89 16.1 3:47 (208, 6) Oct. 24 8 24.35 43 34.4 1.062 1.484 92 16.1 3:36 (208, 4) 114P/Wiseman-Skiff Now it is 16.6 mag (Oct. 9, Ken-ichi Kadota). Fading slowly. 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. 17 9 15.44 12 7.2 1.731 1.604 65 16.3 3:47 (240, 18) Oct. 24 9 30.53 9 31.7 1.696 1.620 68 16.3 3:36 (241, 21) 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. 17 17 14.61 12 16.8 7.984 7.546 60 16.4 19:44 (116, 14) Oct. 24 17 18.10 12 3.3 8.090 7.582 56 16.4 19:52 (111, 8) 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. 17 0 12.88 18 4.7 1.018 1.984 160 16.4 22:28 (180, 37) Oct. 24 23 54.74 16 38.0 0.975 1.907 151 16.4 21:43 (180, 38) 84P/Giclas Now it is 17.3 mag (Oct. 2, Andrew Pearce). It stays 16 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 20 31.43 -25 52.6 1.600 2.033 100 16.4 19:44 (124, 75) Oct. 24 20 39.47 -25 25.3 1.646 2.001 95 16.4 19:52 (113, 70) C/2025 J1 ( Borisov ) Now it is 16.8 mag (Sept. 23, Alfons Diepvens). 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. 17 7 13.21 9 40.0 3.546 3.761 94 16.5 3:47 (214, 39) Oct. 24 7 10.42 7 53.2 3.449 3.780 101 16.5 3:36 (210, 43) C/2026 AZ17 ( Bok ) Now it is 16.7 mag (Oct. 11, Alfons Diepvens). 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. 17 17 47.95 -0 29.5 2.744 2.505 65 16.7 19:44 (112, 29) Oct. 24 18 0.29 -2 4.6 2.799 2.494 62 16.7 19:52 (106, 25) C/2022 R6 ( PanSTARRS ) It was observed at 16 mag from 2025 to 2026. Now it is 17.3 mag (Oct. 2, P.-J. Dekelver). 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. 17 10 11.35 5 4.8 7.723 7.131 50 17.0 3:47 (255, 12) Oct. 24 10 14.63 5 6.2 7.647 7.149 56 17.0 3:36 (253, 15) 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. In the Southern Hemisphere, it is not observable now, but it will be observable soon. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 10 1.74 31 19.1 4.507 4.157 63 17.1 3:47 (233, -2) Oct. 24 10 8.14 30 57.3 4.433 4.173 68 17.0 3:36 (232, 0) 346P/Catalina Now it is 17.5 mag (Oct. 2, 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. 17 8 51.79 18 55.3 2.385 2.303 73 17.1 3:47 (231, 18) Oct. 24 9 3.04 19 7.4 2.319 2.319 77 17.1 3:36 (229, 18) C/2025 E1 ( PanSTARRS ) Now it is 17.6 mag (Sept. 12, 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) Oct. 17 13 26.27 -79 24.0 4.226 4.003 70 17.2 19:44 ( 10, 29) Oct. 24 14 18.91 -80 22.8 4.256 4.007 68 17.2 19:52 ( 10, 31) 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. 17 11 11.32 30 21.4 6.025 5.453 50 17.3 3:47 (243,-14) Oct. 24 11 18.32 30 16.6 5.938 5.443 55 17.2 3:36 (241,-12) 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. 17 7 21.12 -29 8.9 2.981 3.088 86 17.2 3:47 (264, 65) Oct. 24 7 13.89 -30 32.8 2.977 3.176 92 17.4 3:36 (263, 71) 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 17.2 mag (Sept. 5, 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. 17 1 58.95 22 30.8 1.203 2.179 164 17.3 0:19 (180, 32) Oct. 24 1 55.62 20 45.2 1.205 2.193 170 17.3 23:44 (180, 34) 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. 17 23 59.96 -44 54.0 11.186 11.754 122 17.4 22:16 ( 0, 80) Oct. 24 23 56.69 -44 37.4 11.272 11.772 118 17.5 21:46 ( 0, 81) 188P/LINEAR-Mueller Now it is 17.9 mag (Aug. 24, W. Hasubick). 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. 17 6 25.40 35 35.7 2.380 2.844 107 17.5 3:47 (193, 18) Oct. 24 6 28.37 36 5.0 2.316 2.864 113 17.5 3:36 (189, 18) 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). Fading slowly. It will be fainter than 18 mag in November. 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. 17 21 48.74 23 7.9 6.657 7.291 126 17.6 20:05 (180, 32) Oct. 24 21 46.17 22 8.3 6.781 7.336 120 17.6 19:52 (175, 33) 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 17.3 mag (Oct. 7, 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. 17 1 22.99 -1 39.0 3.765 4.748 169 17.6 23:39 (180, 56) Oct. 24 1 16.43 -1 27.9 3.729 4.694 164 17.6 23:05 (180, 56) C/2024 G4 ( PanSTARRS ) Now it is 17.6 mag (Sept. 16, ATLAS Chile). 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. 17 20 7.50 -7 11.7 4.911 5.161 98 17.6 19:44 (142, 57) Oct. 24 20 10.62 -7 44.5 5.033 5.179 92 17.7 19:52 (130, 53) C/2025 B2 ( Borisov ) Now it is 17.2 mag (Oct. 1, Taras Prystavski). 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. 17 17 8.77 72 18.1 8.201 8.241 88 17.6 19:44 (162,-26) Oct. 24 17 16.12 71 14.3 8.191 8.243 89 17.6 19:52 (160,-27) 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. 17 5 24.50 39 1.4 1.757 2.405 119 17.8 3:45 (180, 16) Oct. 24 5 27.05 38 8.2 1.677 2.396 125 17.7 3:20 (180, 17) C/2023 X2 ( Lemmon ) Now it is 17.8 mag (July 6, ATLAS-MLO, Mauna Loa). It stays 18 mag for a while. 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) Oct. 17 15 15.13 52 19.6 5.885 5.549 65 17.8 19:44 (136,-29) Oct. 24 15 22.89 51 9.4 5.905 5.570 65 17.8 19:52 (133,-32) 93P/Lovas 1 Now it is 17.7 mag (Sept. 22, P.-J. Dekelver). 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. 17 10 16.14 16 11.3 2.807 2.352 53 17.8 3:47 (247, 5) Oct. 24 10 26.11 15 4.1 2.776 2.395 57 17.9 3:36 (246, 7) 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. 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. 17 8 41.58 7 4.3 2.413 2.320 72 17.9 3:47 (237, 28) Oct. 24 8 51.33 5 42.0 2.342 2.327 76 17.9 3:36 (237, 30) 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. 17 6 10.24 -0 17.4 4.337 4.751 108 18.0 3:47 (199, 54) Oct. 24 6 3.66 -0 56.7 4.203 4.730 116 17.9 3:36 (189, 56) 65P/Gunn Now it is 17.7 mag (Oct. 7, Hidenori Nohara). Fading slowly. It will be fainter than 18 mag soon. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 0 18.99 -9 0.4 2.735 3.665 155 17.9 22:35 (180, 64) Oct. 24 0 15.16 -9 5.3 2.798 3.681 148 17.9 22:04 (180, 64) 266P/Christensen Now it is 18.8 mag (Oct. 12, D. Buczynski). Brightening 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) Oct. 17 7 34.81 25 30.2 2.096 2.351 91 18.7 3:47 (211, 22) Oct. 24 7 43.90 25 20.0 2.008 2.345 96 18.6 3:36 (209, 23) P/2021 N1 = P/2026 M1 ( ZTF ) First return of a new periodic comet which brightened up to 17 mag in 2021. It approached to Earth down to 0.17 a.u. from June to July. It brightened up to 15.2 mag (July 14, Andrew Pearce). Now it is 18.2 mag (Sept. 19, Mike Olason). It will fade out rapidly after this. In the Northern Hemisphere, it stays observable in good condition. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Oct. 17 4 49.95 48 25.1 0.652 1.452 122 18.6 3:11 (180, 7) Oct. 24 4 37.23 48 2.9 0.671 1.516 129 18.9 2:31 (180, 7) 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. 17 11 27.23 -1 15.3 1.857 1.120 30 19.9 3:47 (271, 1) Oct. 24 11 24.93 -4 9.5 1.890 1.253 37 20.4 3:36 (271, 6)