Weekly Information about Bright Comets (2024 Nov. 16: North)

Japanese version Home page	Updated on November 14, 2024
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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/2023 A3 ( Tsuchinshan-ATLAS ) It brightened up to -4.9 mag due to the forward scattering on Oct. 9 in the SOHO coronagraph images (M. Paradowski). It became a great comet of 0 mag on the ground. Now it is 7.7 mag (Nov. 11, Osamu Miyazaki). Fading rapidly. It will be unobservable soon in the Southern Hemisphere, or in January in the Northern Hemisphere. But it will be observable again in January in the Northern Hemisphere, or in March in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 18 43.48 4 3.9 1.491 1.207 53 7.5 18:21 ( 68, 35) Nov. 23 18 55.99 4 13.7 1.716 1.333 50 8.1 18:19 ( 71, 32) 333P/LINEAR It is expected to brighten very rapidly up to 10 mag from November to Decemebr. Now it is 12.9 mag (Nov. 12, Mike Olason). It brightens up to 9.5 mag, but it will turn to fade out rapidly after that. It will be fainter than 18 mag in March. In the Northern Hemisphere, it stays observable in good condition. In the Southern Hemisphere, it will be unobservable in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 11 17.12 15 13.6 0.980 1.128 69 11.0 5:08 (292, 51) Nov. 23 11 37.56 24 16.5 0.792 1.117 76 10.4 5:13 (282, 59) 13P/Olbers It returned for the first time in 68 years. It brightened up to 6.2 mag in early summer (July 1, Virgilio Gonano). Now it is 10.1 mag (Nov. 10, Mike Olason). Fading gradually. Now it is not observable. It will appear in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 16 13.42 -8 39.5 3.215 2.276 15 10.9 18:21 ( 81, -3) Nov. 23 16 25.75 -10 2.8 3.304 2.351 12 11.2 18:19 ( 82, -6) C/2024 S1 ( ATLAS ) Bright new Kreutz sungrazer comet. Large outburst occured on Oct. 18 and it brightened up to 8.2 mag (Oct. 20, Martin Masek). It approached to Sun down to 0.008 a.u. on Oct. 28. It was expected to brighten up to 2 mag, or -4.5 mag at best. However, it completely disappered at the perihelion. It is appearing in the morning sky, but probably nothing remains. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 12 10.32 -27 13.2 0.981 0.761 45 11.0 5:08 (315, 11) Nov. 23 11 39.14 -31 48.9 0.968 0.944 57 11.7 5:13 (330, 16) C/2022 E2 ( ATLAS ) Now it is 12.9 mag (Nov. 11, Osamu Miyazaki). Fading slowly. 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) Nov. 16 6 8.65 65 40.7 3.041 3.709 126 11.7 2:31 (180, 59) Nov. 23 5 34.34 67 19.9 3.003 3.720 130 11.7 1:30 (180, 58) C/2024 G3 ( ATLAS ) It approaches to Sun down to 0.09 a.u. on Jan. 13. According to the calculation, it will brighten up to -1 mag. But probably, it will be disintegrated. At the high light, it may be observable after the perihelion passage only in the Southern Hemisphere. Now it is 11.9 mag (Oct. 30, Chris Wyatt). Brightening rapidly. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be unobservable in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 15 21.09 -42 49.1 2.418 1.569 24 12.9 5:08 (304,-28) Nov. 23 15 35.73 -41 56.6 2.301 1.434 21 12.4 5:13 (305,-25) 12P/Pons-Brooks It returns for the first time in 70 years. It brightened up to 3.7 mag in early April (Apr. 6, Jose Guilherme Aguiar). Now it is 14.6 mag (Oct. 22, Hidetaka Sato). Fading slowly. In the Northern Hemisphere, it is not observable now, but it will appear in February. 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) Nov. 16 15 22.46 -47 37.4 4.000 3.171 28 13.0 5:08 (310,-30) Nov. 23 15 34.60 -47 40.8 4.091 3.249 27 13.1 5:13 (311,-27) C/2023 C2 ( ATLAS ) Now it is 13.4 mag (Oct. 31, Thomas Lehmann). It stays 14 mag for a while. It will be unobservable in January in the Northern Hemisphere, or in December in the Southern Hemisphere. But it will be observable again in February in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 18 49.30 -24 41.5 2.923 2.369 47 13.1 18:21 ( 45, 15) Nov. 23 19 1.91 -22 47.1 2.988 2.369 43 13.1 18:19 ( 48, 14) C/2024 M1 ( ATLAS ) It is expected to brighten up to 13.5 mag, and it will be observable in good condition in winter. Now it is 14.9 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). It will turn to fade out rapidly after the peak. 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 January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 6 15.81 -8 48.8 0.892 1.704 129 14.1 2:36 ( 0, 46) Nov. 23 5 55.41 -2 37.0 0.810 1.704 142 13.9 1:48 ( 0, 52) C/2024 B1 ( Lemmon ) It became much brighter than expected. Now it is 13.1 mag (Nov. 1, Thomas Lehmann). It will fade out rapidly after this. It locates somewhat low in the Northern Hemisphere. But it will become high in winter. In the Southern Hemisphere, it is not observable now, but it will appear in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 15 16.55 34 18.5 2.118 1.716 53 13.9 5:08 (238, 14) Nov. 23 15 38.05 31 38.4 2.170 1.747 52 14.1 5:13 (241, 15) 29P/Schwassmann-Wachmann 1 Major outburst occcured on Nov. 3. Now it is 11.1 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). 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) Nov. 16 10 9.07 9 47.2 6.286 6.244 83 14.0 5:08 (319, 59) Nov. 23 10 10.76 9 31.5 6.174 6.246 89 13.9 5:13 (333, 62) C/2022 QE78 ( ATLAS ) Now it is 14.9 mag (Nov. 3, Hiroshi Abe). 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) Nov. 16 6 45.86 3 2.4 5.230 5.898 128 14.4 3:05 ( 0, 58) Nov. 23 6 44.57 3 10.2 5.137 5.879 135 14.3 2:37 ( 0, 58) 37P/Forbes Now it is 13.8 mag (Oct. 31, ATLAS Chile). It will fade out rapidly after this. It will be unobservable in February 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) Nov. 16 18 43.97 -24 7.5 2.177 1.656 46 14.4 18:21 ( 46, 15) Nov. 23 19 5.90 -23 10.6 2.230 1.671 44 14.5 18:19 ( 47, 15) C/2021 G2 ( ATLAS ) Now it is 14.1 mag (Aug. 29, Chris Wyatt). It stays 14 mag for a while. Now it is not observable. It will appear soon 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) Nov. 16 14 17.75 -19 16.5 5.953 5.010 16 14.4 5:08 (290, -5) Nov. 23 14 24.85 -19 18.4 5.924 5.016 21 14.4 5:13 (294, 0) C/2022 N2 ( PanSTARRS ) It is expected to brighten up to 13 mag in 2025 autumn, and it will be observable in good condition. Now it is 14.6 mag (Nov. 3, Hiroshi Abe). It stays 15 mag for a while. It will be getting lower gradually after this, and it will be unobservable in February in the Southern Hemisphere, or in March in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 22 38.14 -5 12.1 4.068 4.433 105 14.5 18:55 ( 0, 50) Nov. 23 22 40.34 -4 58.4 4.142 4.404 98 14.5 18:30 ( 0, 50) 487P/2024 N5 ( Siding Spring ) First return of a new periodic comet which brightened up to 16 mag in 2012. Now it is 14.8 mag (Nov. 2, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this. 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 unobservable in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 4 10.62 40 28.0 0.886 1.835 156 14.5 0:32 (180, 85) Nov. 23 3 54.73 44 27.8 0.901 1.847 155 14.6 23:42 (180, 80) C/2021 S3 ( PanSTARRS ) It brightened up to 9.6 mag from February to March (Feb. 25, Thomas Lehmann). Now it is 14.7 mag (Nov. 3, Thomas Lehmann). Fading slowly. 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) Nov. 16 20 22.48 36 1.5 3.661 3.774 88 14.9 18:21 (100, 69) Nov. 23 20 31.03 34 56.9 3.791 3.844 85 15.0 18:19 ( 99, 66) C/2023 Q1 ( PanSTARRS ) Now it is 16.7 mag (Nov. 3, Hiroshi Abe). It stays 15 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) Nov. 16 8 9.03 70 21.4 2.015 2.581 113 15.1 4:29 (180, 55) Nov. 23 8 22.43 71 35.3 1.981 2.577 116 15.1 4:15 (180, 54) C/2023 R2 ( PanSTARRS ) Fading gradually. It will be fainter than 18 mag in February. In the Northern Hemisphere, it will be unobservable in December. But it will be observable again in January. 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) Nov. 16 16 29.53 -2 56.6 2.706 1.829 22 15.3 18:21 ( 84, 4) Nov. 23 16 47.35 -3 0.0 2.802 1.918 21 15.6 18:19 ( 85, 2) P/2023 S1 Now it is 15.8 mag (Nov. 4, Thomas Lehmann). It stays 15 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) Nov. 16 9 6.80 21 24.3 2.318 2.687 100 15.4 5:08 (342, 76) Nov. 23 9 11.76 20 55.1 2.221 2.678 106 15.3 5:03 ( 0, 76) 130P/McNaught-Hughes Now it is 15.3 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). Fading gradually. 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) Nov. 16 1 56.76 6 34.1 1.577 2.510 155 15.3 22:13 ( 0, 62) Nov. 23 1 52.95 6 39.7 1.655 2.543 147 15.5 21:42 ( 0, 62) C/2014 UN271 ( Bernardinelli-Bernstein ) Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.2 mag (Sept. 26, Martin Masek). 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) Nov. 16 4 2.14 -70 38.6 15.706 15.744 90 15.5 0:21 ( 0,-16) Nov. 23 3 58.14 -70 45.5 15.708 15.720 88 15.4 23:45 ( 0,-16) C/2017 K2 ( PanSTARRS ) It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 15.6 mag (Nov. 6, ATLAS-MLO, Mauna Loa). 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) Nov. 16 6 12.81 19 34.5 6.487 7.279 140 15.5 2:33 ( 0, 75) Nov. 23 6 8.95 19 49.9 6.473 7.333 148 15.5 2:01 ( 0, 75) 472P/2023 RL75 ( NEAT-LINEAR ) Now it is 15.6 mag (Nov. 4, ATLAS-MLO, Mauna Loa). 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) Nov. 16 6 41.60 10 48.9 2.757 3.498 132 15.6 3:01 ( 0, 66) Nov. 23 6 40.22 10 24.5 2.705 3.511 139 15.6 2:32 ( 0, 65) C/2024 J2 ( Wierzchos ) Brightening rapidly. Now it is 15.0 mag (Nov. 8, Ken-ichi Kadota). Brightening slowly. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it is not observable now. It will brighten up to 14 mag from winter to spring. But it is not observable at the high light. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 16 42.90 36 22.5 2.742 2.372 58 15.8 18:21 (117, 27) Nov. 23 17 3.71 35 53.5 2.676 2.319 58 15.6 18:19 (117, 26) 43P/Wolf-Harrington Now it is 15.8 mag (Nov. 2, Toshihiko Ikemura, Hirohisa Sato). It stays 16 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) Nov. 16 1 50.06 17 30.9 2.103 3.040 157 15.8 22:06 ( 0, 73) Nov. 23 1 46.47 16 45.9 2.121 3.014 149 15.8 21:35 ( 0, 72) C/2024 A1 ( ATLAS ) Now it is 16.2 mag (Oct. 30, John Drummond). It stays 15 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in winter. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 8 13.10 -26 56.0 4.050 4.281 96 15.9 4:32 ( 0, 28) Nov. 23 8 9.95 -26 52.0 3.935 4.256 102 15.8 4:02 ( 0, 28) C/2020 V2 ( ZTF ) It was observed at 9-10 mag for a long time in 2023. Now it is 15.4 mag (Nov. 7, ATLAS South Africa). It stays 16 mag for a while. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be getting lower gradually. But it will be getting higher again after February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 20 52.80 -65 29.3 6.283 6.010 69 15.8 18:21 ( 7,-11) Nov. 23 20 53.06 -64 46.0 6.414 6.065 65 15.9 18:19 ( 10,-11) 30P/Reinmuth 1 Now it is 16.5 mag (Nov. 2, Martin Masek). It stays 16 mag for a while. In the Northern Hemisphere, it will be getting higher gradually. 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) Nov. 16 12 42.19 0 47.0 2.568 1.989 44 15.9 5:08 (289, 26) Nov. 23 12 56.51 -0 23.8 2.539 2.015 47 16.0 5:13 (293, 29) C/2019 U5 ( PanSTARRS ) Now it is 15.8 mag (Nov. 6, ATLAS Chile). It stays 16 mag for a while. 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) Nov. 16 7 29.93 -48 18.8 6.096 6.238 93 16.0 3:49 ( 0, 7) Nov. 23 7 22.51 -49 11.9 6.092 6.283 96 16.0 3:14 ( 0, 6) C/2023 H5 ( Lemmon ) It will be observable at 15 mag for a long time in 2025 in the Northern Hemisphere. Now it is 16.5 mag (Oct. 30, 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 is not observable now, but it will appear in December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 11 58.49 27 35.7 4.973 4.697 68 16.1 5:08 (267, 49) Nov. 23 12 3.42 28 40.6 4.845 4.675 74 16.0 5:13 (269, 55) C/2022 R6 ( PanSTARRS ) Now it is 16.5 mag (Nov. 8, ATLAS Chile). It stays 16 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in autumn. In the Southern Hemisphere, it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 7 9.78 -30 6.5 6.476 6.835 107 16.1 3:29 ( 0, 25) Nov. 23 7 8.72 -30 24.1 6.404 6.822 111 16.0 3:00 ( 0, 25) 305P/Skiff Now it is 16.8 mag (Oct. 31, Thomas Lehmann). Fading slowly. It will be fainter than 18 mag in March. It stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 22 52.30 6 51.4 0.705 1.419 112 16.3 19:10 ( 0, 62) Nov. 23 23 12.70 6 31.4 0.732 1.420 110 16.2 19:03 ( 0, 62) (3200) Phaethon Parent asteroid of Geminids meteor shower. Now it is 18.5 mag (Sept. 12, ATLAS-HKO, Haleakala). 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) Nov. 16 4 20.96 39 20.2 1.048 1.993 156 16.6 0:42 (180, 86) Nov. 23 3 56.23 38 28.6 0.982 1.945 161 16.3 23:43 (180, 87) C/2023 T3 ( Fuls ) Now it is 16.8 mag (May 18, ATLAS South Africa). It stays 16 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will be getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 11 55.48 -23 37.3 4.177 3.606 48 16.4 5:08 (316, 16) Nov. 23 12 4.40 -24 45.6 4.102 3.595 53 16.3 5:13 (321, 19) C/2019 L3 ( ATLAS ) It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 15.1 mag (Aug. 2, Thomas Lehmann). 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) Nov. 16 12 21.16 -51 43.5 9.701 9.080 48 16.4 5:08 (330, -8) Nov. 23 12 24.91 -52 22.1 9.708 9.124 51 16.5 5:13 (334, -6) C/2023 F3 ( ATLAS ) Now it is 16.5 mag (June 6, Giuseppe Pappa). It stays 16 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 getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 13 41.34 -40 45.5 6.044 5.225 31 16.6 5:08 (312,-11) Nov. 23 13 42.66 -41 12.0 5.998 5.219 34 16.6 5:13 (317, -7) C/2022 L2 ( ATLAS ) Now it is 16.1 mag (Nov. 1, Thomas Lehmann). It stays 17 mag for a while. 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) Nov. 16 9 35.27 -37 45.7 3.791 3.693 76 16.6 5:08 (350, 16) Nov. 23 9 27.55 -39 5.0 3.740 3.740 82 16.6 5:13 (359, 16) P/2024 S3 ( Hill ) First return of a new periodic comet which brightened up to 15 mag in 2010. It is expected to brighten up to 15 mag from winter to spring, and it will be observable in excellent condition in the Northern Hemisphere. Now it is 17.4 mag (Nov. 6, Ken-ichi Kadota). Brightening slowly. 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) Nov. 16 2 36.03 6 8.2 1.102 2.066 162 16.8 22:52 ( 0, 61) Nov. 23 2 28.98 6 56.2 1.081 2.021 155 16.6 22:17 ( 0, 62) 276P/Vorobjov Now it is 16.6 mag (Nov. 8, 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) Nov. 16 2 52.85 11 0.7 2.925 3.900 168 16.6 23:09 ( 0, 66) Nov. 23 2 49.27 10 26.9 2.951 3.900 161 16.6 22:38 ( 0, 66) C/2023 R1 ( PanSTARRS ) Now it is 17.0 mag (Nov. 6, ATLAS-MLO, Mauna Loa). It stays 17 mag for a while. It will be unobservable in February in the Northern Hemisphere, or in December in the Southern Hemisphere. But it will be observable again in March in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 22 19.46 22 51.6 5.302 5.704 109 16.7 18:36 ( 0, 78) Nov. 23 22 16.26 21 54.8 5.369 5.660 102 16.7 18:19 ( 13, 77) 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 16.8 mag (Nov. 6, A. Pearce). It stays 17 mag for a while. 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) Nov. 16 6 43.56 -41 25.9 5.589 5.913 104 16.7 3:03 ( 0, 14) Nov. 23 6 38.18 -41 34.9 5.590 5.961 107 16.7 2:30 ( 0, 13) 32P/Comas Sola It stays 17 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) Nov. 16 13 6.65 -0 19.4 3.400 2.701 38 16.7 5:08 (286, 20) Nov. 23 13 16.57 -1 21.3 3.375 2.737 43 16.8 5:13 (291, 24) C/2019 E3 ( ATLAS ) Very far object. Now it is 16.8 mag (Nov. 6, 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) Nov. 16 1 14.00 -68 9.7 10.453 10.497 89 16.8 21:30 ( 0,-13) Nov. 23 1 7.21 -67 34.3 10.512 10.504 86 16.8 20:55 ( 0,-12) 154P/Brewington It brightened up to 12.0 mag in June (June 13, Ken-ichi Kadota). Now it is 17.3 mag (Oct. 31, Hirohisa Sato). Fading slowly. It will be fainter than 18 mag in February. 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) Nov. 16 9 38.89 31 55.1 1.931 2.275 97 16.8 5:08 (283, 79) Nov. 23 9 43.05 31 50.3 1.895 2.325 102 16.9 5:13 (305, 84) 253P/PanSTARRS Now it is 16.8 mag (Nov. 2, Toshihiko Ikemura, Hirohisa Sato). 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) Nov. 16 0 39.05 -3 38.2 1.227 2.037 133 17.1 20:56 ( 0, 52) Nov. 23 0 41.63 -3 11.7 1.289 2.043 127 17.2 20:31 ( 0, 52) 242P/Spahr Now it is 17.5 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). 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) Nov. 16 4 8.63 -15 43.8 3.133 3.975 143 17.1 0:29 ( 0, 39) Nov. 23 4 4.77 -16 17.4 3.138 3.974 143 17.1 23:53 ( 0, 39) 49P/Arend-Rigaux It will brighten up to 14 mag in 2025 spring. Now it is 17.0 mag (Oct. 31, ATLAS Chile). Brightening 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) Nov. 16 23 34.86 -29 21.8 1.574 2.083 106 17.3 19:52 ( 0, 26) Nov. 23 23 36.95 -28 21.2 1.602 2.036 101 17.3 19:26 ( 0, 27) 492P/2024 O3 ( LINEAR ) First return of a new periodic comet which brightened up to 15 mag in 2010. Now it is 18.7 mag (Nov. 4, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It will be fainter than 18 mag in February. 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) Nov. 16 9 30.30 29 13.6 1.796 2.168 98 17.3 5:08 (301, 79) Nov. 23 9 36.93 29 13.7 1.758 2.209 103 17.3 5:13 (330, 83) (308607) 2005 WY3 Peculiar asteroid moving along a cometary orbit. 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) Nov. 16 3 49.05 -11 57.5 1.950 2.842 148 17.4 0:09 ( 0, 43) Nov. 23 3 43.79 -13 11.8 1.916 2.793 146 17.3 23:32 ( 0, 42) 146P/Shoemaker-LINEAR It brightened up to 14.4 mag in summer (Aug. 17, Hiroshi Abe). Now it is 16.8 mag (Nov. 3, Thomas Lehmann). 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 stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 6 17.96 38 58.8 0.968 1.825 137 17.3 2:38 (180, 86) Nov. 23 6 10.74 41 29.2 0.978 1.871 144 17.5 2:04 (180, 84) C/2022 U1 ( Leonard ) Now it is 17.4 mag (Nov. 7, ATLAS-HKO, Haleakala). It stays 18 mag for a while. In the Northern Hemisphere, it will be getting lower gradually. But it will be getting higher again after January. In the Southern Hemisphere, it is not observable now, but it will appear in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 19 7.11 20 10.0 4.935 4.635 66 17.4 18:21 ( 81, 48) Nov. 23 19 8.81 18 58.0 5.046 4.659 61 17.4 18:19 ( 84, 43) C/2021 S4 ( Tsuchinshan ) Now it is 17.8 mag (Nov. 6, Toshihiko Ikemura, Hirohisa Sato). It stays 18 mag for a while. In the Northern Hemisphere, it stays observable in good condition. It stays extremely low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 7 43.18 40 31.5 6.435 7.000 121 17.4 4:03 (180, 85) Nov. 23 7 42.75 40 46.6 6.364 7.014 127 17.4 3:35 (180, 84) C/2019 T4 ( ATLAS ) It brightened up to 11.1 mag in early 2022 (Mar. 31, 2022, F. Kugel, J.-G. Bosch, J. Nicolas). Now it is 16.9 mag (Oct. 20, 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) Nov. 16 17 45.11 24 23.3 8.604 8.076 54 17.5 18:21 ( 98, 34) Nov. 23 17 49.47 24 11.6 8.680 8.117 52 17.5 18:19 (100, 29) 302P/Lemmon-PanSTARRS Now it is 17.3 mag (Oct. 31, ATLAS Chile). It stays 18 mag for a while. It will be unobservable in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 19 46.83 -21 56.3 3.696 3.328 60 17.5 18:21 ( 35, 25) Nov. 23 19 55.60 -21 39.2 3.776 3.324 55 17.5 18:19 ( 39, 23) 117P/Helin-Roman-Alu 1 Now it is 17.8 mag (Nov. 1, Purple Mountain Observatory, XuYi Station). Fading slowly. 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) Nov. 16 3 10.96 16 7.7 3.556 4.542 175 17.8 23:27 ( 0, 71) Nov. 23 3 6.38 15 57.4 3.585 4.555 167 17.8 22:55 ( 0, 71) 50P/Arend Now it is 17.8 mag (Oct. 20, Ken-ichi Kadota). 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) Nov. 16 10 0.82 31 41.6 2.258 2.506 92 17.8 5:08 (278, 75) Nov. 23 10 6.44 31 35.2 2.206 2.541 98 17.8 5:13 (288, 80) 338P/McNaught Now it is 17.5 mag (Oct. 22, ATLAS-HKO, Haleakala). 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) Nov. 16 1 49.81 38 51.3 1.496 2.410 151 17.8 22:06 (180, 86) Nov. 23 1 43.12 38 55.2 1.542 2.426 146 18.0 21:32 (180, 86) 195P/Hill Now it is 17.4 mag (Nov. 4, ATLAS-MLO, Mauna Loa). 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) Nov. 16 7 3.35 -3 22.3 3.994 4.596 122 17.9 3:23 ( 0, 52) Nov. 23 7 1.64 -4 18.8 3.914 4.588 127 17.8 2:54 ( 0, 51) C/2024 G2 ( ATLAS ) Now it is 17.9 mag (May 17, J. L. Virlichie, P. Traverse, H. Roy). It stays 18 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 getting higher gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Nov. 16 12 51.01 -46 60.0 6.259 5.568 42 17.9 5:08 (323, -8) Nov. 23 12 54.10 -47 8.0 6.205 5.554 45 17.9 5:13 (327, -5) P/2024 S2 ( Rankin ) Now it is 17.4 mag (Oct. 1, Martin Masek). Fading slowly. 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) Nov. 16 7 4.29 34 5.2 1.359 2.128 129 17.9 3:24 ( 0, 89) Nov. 23 7 5.67 34 36.4 1.325 2.146 135 17.9 2:58 ( 0, 90)