Weekly Information about Bright Comets (2023 Jan. 7: North)

Japanese version Home page	Updated on January 8, 2023
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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/2022 E3 ( ZTF ) Now it is very bright as 7.3 mag (Jan. 2, Yoshimi Nagai). It will approach to Earth down to 0.29 a.u. in February, and it is expected to brighten up to 5 mag. In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it is not observable until early February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 15 51.43 34 13.9 0.871 1.116 73 7.2 5:38 (257, 51) Jan. 14 15 46.74 40 8.8 0.672 1.112 82 6.6 5:38 (249, 59) C/2017 K2 ( PanSTARRS ) Now it is very bright as 7.9 mag (Dec. 26, Martin Masek). It is observable at 8 mag for a long time from 2022 to 2023. In the Southern Hemisphere, it stays observable for a long time, although it became low temporarily from November to December. In the Northern Hemisphere, it is not observable until 2023 summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 19 21.61 -67 9.2 2.373 1.812 44 7.8 18:33 ( 28,-33) Jan. 14 20 9.14 -69 11.6 2.332 1.826 47 7.8 18:39 ( 25,-32) C/2022 A2 ( PanSTARRS ) Brightening very rapidly. Now it is very bright as 9.6 mag (Jan. 2, Yoshimi Nagai). It stays 9-10 mag until March. In the Northern Hemisphere, it will be observable in good condition after this. In the Southern Hemisphere, it is not observable until June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 16 13.10 51 37.8 1.646 1.820 83 9.8 5:38 (229, 49) Jan. 14 17 4.52 55 15.3 1.616 1.795 83 9.6 5:38 (224, 46) C/2020 V2 ( ZTF ) Now it is 9.8 mag (Dec. 27, Carlos Labordena). It stays bright as 10 mag for a long time until 2023 autumn. In the Northern Hemisphere, it stays observable in good condition until 2023 autumn. In the Southern Hemipshere, it stays unobservable until summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 1 47.13 76 7.9 2.062 2.621 114 9.8 18:41 (180, 49) Jan. 14 1 32.95 70 21.5 2.080 2.581 109 9.7 18:39 (174, 54) 96P/Machholz 1 It will approach to Sun down to 0.1 a.u. on Jan. 31. In the Northern Hemisphere, it will appear in the morning sky at 9 mag in mid February, then it stays observable while the comet will be fading. In the Southern Hemisphere, it stays observable for a long time, although it is not observable from mid January to mid February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 20 11.77 -40 56.7 1.599 0.788 22 12.5 18:33 ( 51,-16) Jan. 14 20 35.34 -38 20.7 1.429 0.615 20 10.9 18:39 ( 55,-17) C/2019 L3 ( ATLAS ) It brightened up to 8.3 mag in last winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is fading. But it is bright as 11.1 mag still now (Jan. 2, Osamu Miyazaki). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 9 52.98 -31 37.8 4.317 4.791 113 11.4 2:49 ( 0, 23) Jan. 14 9 49.31 -32 37.1 4.294 4.831 117 11.4 2:18 ( 0, 22) C/2022 U2 ( ATLAS ) It brightened very rapidly. Now it is very bright as 11.6 mag (Dec. 28, Martin Masek). It stays 11-12 mag until February. In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it is not observable until February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 22 57.99 77 34.6 0.675 1.332 105 11.6 18:33 (169, 44) Jan. 14 1 24.20 75 48.1 0.620 1.328 109 11.4 18:39 (176, 49) 81P/Wild 2 Now it is 11.7 mag (Dec. 26, Chris Wyatt). Appearing in the morning sky also in the Southern Hemisphere. It stays 11-12 mag until spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 14 48.29 -13 43.8 1.816 1.614 62 11.5 5:38 (323, 33) Jan. 14 15 7.01 -14 53.2 1.779 1.625 64 11.6 5:38 (326, 33) C/2022 P1 ( NEOWISE ) Now it is bright as 11.4 mag (Dec. 14, Jose Guilherme de S. Aguiar). It will be fading after this. In the Southern Hemisphere, it becomes unobservable temporarily from December to January. In the Northern Hemisphere, it is not observable until spring when it fades down to 15 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 19 26.96 -38 5.0 2.598 1.675 16 11.8 18:33 ( 59,-23) Jan. 14 19 26.64 -38 3.7 2.622 1.705 16 12.0 5:38 (301,-24) C/2020 K1 ( PanSTARRS ) Now it is 13.2 mag (Nov. 27, Ken-ichi Kadota). It is expected to brighten up to 11 mag in 2023. In the Southern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily from November to January. In the Northern Hemisphere, it is not observable until 2024 autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 18 31.49 -26 13.5 4.262 3.296 9 11.9 5:38 (293,-13) Jan. 14 18 39.22 -27 21.9 4.212 3.272 15 11.8 5:38 (297,-10) C/2019 U5 ( PanSTARRS ) Now it is 12.4 mag (Dec. 18, Jose Guilherme de S. Aguiar). It stays 12 mag until summer. In the Northern Hemisphere, it stays observable in good condition for a long time. It is appearing in the morning sky also in the Southern Hemisphere. It stays observable in good condition after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 13 50.04 3 10.1 3.706 3.699 81 12.6 5:38 (330, 54) Jan. 14 13 47.33 2 35.1 3.565 3.687 89 12.5 5:38 (343, 56) C/2019 T4 ( ATLAS ) Now it is bright as 12.9 mag (Jan. 2, Hiroshi Abe). It stays 13 mag until spring. It stays observable in good condition for a while after this. It will be getting higher rapidly also in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 15 11.84 -0 9.1 4.970 4.591 61 12.9 5:38 (307, 40) Jan. 14 15 17.51 0 31.7 4.896 4.613 67 12.9 5:38 (312, 44) 118P/Shoemaker-Levy 4 Now it is 12.7 mag (Jan. 2, Hiroshi Abe). It stays bright as 13 mag and observable in excellent condition until February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 8 43.13 9 30.9 0.932 1.867 154 12.9 1:40 ( 0, 64) Jan. 14 8 40.35 10 37.6 0.919 1.879 161 12.9 1:10 ( 0, 65) 29P/Schwassmann-Wachmann 1 It brightened in major outburst in late November. Now it is very bright as 10.9 mag (Dec. 29, Martin Masek). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 6 33.77 29 26.0 5.090 6.059 169 13.4 23:27 ( 0, 84) Jan. 14 6 30.09 29 22.3 5.117 6.062 162 13.4 22:56 ( 0, 84) 71P/Clark It will brighten up to 13 mag in winter. But the condition is bad. It is not observable until February in the Southern Hemisphere, or until May in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 17 56.11 -25 26.3 2.509 1.596 17 13.5 5:38 (297, -6) Jan. 14 18 19.60 -25 47.1 2.489 1.591 18 13.4 5:38 (298, -5) C/2021 Y1 ( ATLAS ) Now it is 14.2 mag (Dec. 26, Chris Wyatt). The brightness evolution is slower than originally predicted. It stays 14 mag until summer. In the Northern Hemisphere, it stays observable in good condition until spring. In the Southern Hemisphere, it stays observable in good condition for a long time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 3 26.82 -5 25.3 1.809 2.440 118 13.5 20:20 ( 0, 49) Jan. 14 3 21.40 -7 41.7 1.872 2.396 110 13.5 19:47 ( 0, 47) 73P/Schwassmann-Wachmann 3 Outburst occured in early October, and it brightened up to 9.9 mag (Oct. 14, Thomas Lehmann). It is bright as 12.4 mag still now (Dec. 23, Ken-ichi Kadota). It stays observable only until February in the Southern Hemisphere, or until March in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 23 23.88 -12 50.1 2.230 1.951 60 14.2 18:33 ( 40, 33) Jan. 14 23 38.18 -10 52.2 2.358 2.013 57 14.6 18:39 ( 46, 32) C/2021 E3 ( ZTF ) It brightened up to 9.3 mag in early summer (June 5, Chris Wyatt). Now it is fading. It has already faded down to 15.5 mag (Dec. 31, iTelescope Observatory, Siding Spring). In the Southen Hemisphere, it stays observable in good condition for a long time. It became observable also in the Northern Hemisphere. But it stays locating low for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 8 20.44 -41 26.6 2.562 3.095 114 14.2 1:18 ( 0, 13) Jan. 14 8 3.54 -39 45.6 2.568 3.158 118 14.3 0:33 ( 0, 15) C/2021 X1 ( Maury-Attard ) Now it is 14.4 mag (Dec. 20, Chris Wyatt). It stays 14 mag in 2023. In the Southern Hemisphere, it stays observable in good condition for a long time. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 3 30.24 -21 3.3 3.023 3.498 111 14.3 20:23 ( 0, 34) Jan. 14 3 17.95 -19 40.9 3.105 3.474 103 14.4 19:43 ( 0, 35) C/2022 S3 ( PanSTARRS ) Tiny comet, but it will approach to Sun down to 0.8 a.u. in January, and to Earth down to 0.6 a.u. in March. It will brighten up to 14 mag from January to March. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable now. It will become observable in early March. It has not been observed since late October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 21 23.88 -49 46.7 1.419 0.882 37 14.7 18:33 ( 36,-12) Jan. 14 21 42.43 -53 3.3 1.341 0.851 39 14.4 18:39 ( 35,-16) C/2021 T4 ( Lemmon ) Now it is 14.8 mag (Dec. 26, Chris Wyatt). It is expected to brighten up to 8 mag in July. It will be getting lower after this. And it will be unobservable in February. In the Southern Hemisphere, it will be observable in excellent condition at the high light. In the Northern Hemisphere, it becomes very low at the high lihght. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 0 32.72 -13 46.4 3.119 3.042 76 14.8 18:33 ( 21, 39) Jan. 14 0 28.55 -13 41.4 3.186 2.972 68 14.7 18:39 ( 32, 36) C/2020 R7 ( ATLAS ) Now it is 15.1 mag (Oct. 26, Thomas Lehmann). The brightness evolution is slower than originally expected. It stays 14-15 mag for a long time. Appearing in the morning sky in the Northern Hemisphere. It will appear in the morning sky in early February also in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 17 47.56 -11 10.7 4.046 3.162 22 15.0 5:38 (287, 4) Jan. 14 17 51.89 -9 50.3 4.016 3.187 28 15.0 5:38 (290, 10) 117P/Helin-Roman-Alu 1 Now it is 14.8 mag (Dec. 8, ATLAS Chile). Now it is not observable. It will become observable again in late March in the Southern Hemisphere, or in late May in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 21 2.46 -23 54.1 4.026 3.170 25 15.0 18:33 ( 59, 2) Jan. 14 21 13.47 -23 5.6 4.074 3.180 21 15.1 18:39 ( 63, -1) C/2021 S3 ( PanSTARRS ) Now it is 15.2 mag (Jan. 6, ATLAS South Africa). It is expected to brighten up to 7 mag in early 2024. In the Southern Hemisphere, it stays observable in good condition for a long time. It locates low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 5 37.75 -38 34.5 4.521 5.020 115 15.3 22:30 ( 0, 16) Jan. 14 5 32.35 -38 25.4 4.486 4.955 113 15.2 21:57 ( 0, 17) C/2021 G2 ( ATLAS ) Now it is 15.7 mag (Dec. 31, iTelescope Observatory, Siding Spring). It will brighten up to 13 mag from 2024 to 2025. It is observable in excllent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 9 10.29 -38 49.2 6.323 6.761 112 15.3 2:07 ( 0, 16) Jan. 14 9 8.03 -39 9.1 6.238 6.728 116 15.2 1:37 ( 0, 16) 119P/Parker-Hartley Now it is 15.1 mag (Dec. 26, Chris Wyatt). It will be fading after this, and it will be fainter than 18 mag in spring. It is observable in good condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 7 53.05 22 31.3 1.567 2.541 170 15.3 0:50 ( 0, 77) Jan. 14 7 47.41 23 10.1 1.577 2.560 177 15.3 0:17 ( 0, 78) 77P/Longmore Now it is 16.2 mag (Dec. 30, Ken-ichi Kadota). It will brighten rapidly up to 14 mag and will be observable in excellent condition in spring. In the Northern Hemisphere, it is observable in good condition in winter, but it becomes somewhat low in spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 13 53.45 -7 13.2 2.436 2.417 77 15.5 5:38 (335, 44) Jan. 14 14 1.52 -8 44.5 2.339 2.406 81 15.4 5:38 (342, 45) C/2020 Y2 ( ATLAS ) Now it is 14.9 mag (Dec. 26, Chris Wyatt). It was expected to brighten up to 13 mag in 2022 spring. But actually, it was fainter than originally expected. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it stays extremely low for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 2 26.30 -38 41.0 3.555 3.686 89 15.6 19:19 ( 0, 17) Jan. 14 2 20.88 -36 10.2 3.672 3.721 85 15.7 18:47 ( 0, 19) C/2020 S4 ( PanSTARRS ) Now it is 15.4 mag (Dec. 15, Masayoshi Yoshimi). It stays 16 mag and observable in good condition until spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 9 36.90 20 54.1 2.525 3.384 145 15.8 2:34 ( 0, 76) Jan. 14 9 36.34 21 51.3 2.472 3.379 153 15.8 2:05 ( 0, 77) 61P/Shajn-Schaldach Now it is 15.2 mag (Dec. 12, W. Pei). It stays observable in good condition for a long time. But it will be fading after this, and it will be fainter than 18 mag in spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 1 47.00 3 42.5 1.807 2.202 100 15.8 18:41 ( 0, 59) Jan. 14 1 55.38 4 42.2 1.898 2.216 95 15.9 18:39 ( 8, 60) 237P/LINEAR Appearing in the morning sky. It will brighten very rapidly. It is expected to be observable at 11 mag in excellent condition from spring to summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 15 47.55 -24 39.9 2.791 2.225 46 16.3 5:38 (317, 16) Jan. 14 16 3.50 -25 4.8 2.708 2.202 49 15.9 5:38 (319, 17) P/2022 L3 ( ATLAS ) It brightened up to 14.1 mag in autumn (Nov. 14, Thomas Lehmann). Now it is fading. It has already faded down to 15.3 mag (Dec. 27, Masayoshi Yoshimi). It stays observable in excellent condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 2 5.72 28 29.5 1.950 2.494 112 15.9 19:00 ( 0, 84) Jan. 14 2 10.88 29 9.9 2.044 2.509 106 16.0 18:39 ( 2, 84) 285P/LINEAR It brightened by 6 mag in outburst in early August up to 14.6 mag (Aug. 13, ATLAS-MLO, Mauna Loa). Now it is fading. It has already faded down to 16.7 mag (Dec. 25, Catalina Sky Survey). It will be extremely low after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 22 27.46 -8 3.1 2.187 1.720 49 16.1 18:33 ( 56, 28) Jan. 14 22 46.62 -7 32.9 2.233 1.719 46 16.1 18:39 ( 59, 26) 204P/LINEAR-NEAT It brightened rapidly. Now it is 16.5 mag (Dec. 30, Ken-ichi Kadota). It is observable at 16 mag in good condition in winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 17.40 15 7.2 1.060 1.889 135 16.2 3:14 ( 0, 70) Jan. 14 10 18.77 15 49.8 1.030 1.905 142 16.2 2:48 ( 0, 71) C/2022 E2 ( ATLAS ) Now it is 16.0 mag (Jan. 7, ATLAS South Africa). It is expected to brighten up to 12-13 mag from 2024 to 2025. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 20.02 -19 54.7 5.854 6.363 117 16.4 3:16 ( 0, 35) Jan. 14 10 15.49 -19 40.4 5.716 6.319 124 16.3 2:44 ( 0, 35) C/2018 U1 ( Lemmon ) It was observed at 15 mag from 2021 to 2022. Now it is fading. In the Southern Hemisphere, it stays observable in excellent condition for a long time, although it became extremely low temporarily in November. In the Northern Hemiphere, it is not observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 15 17.45 -60 30.7 6.471 5.962 55 16.3 5:38 (342,-11) Jan. 14 15 18.85 -61 41.1 6.427 5.990 59 16.3 5:38 (345,-10) 408P/2020 M7 ( Novichonok-Gerke ) Now it is 16.2 mag (Dec. 12, Ken-ichi Kadota). It is observable at 16-17 mag in excellent condition from autumn to winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 4 1.49 -1 20.3 2.801 3.496 128 16.3 20:55 ( 0, 54) Jan. 14 4 0.69 -1 0.6 2.880 3.501 121 16.4 20:27 ( 0, 54) C/2021 C5 ( PanSTARRS ) It will brighten up to 16 mag in 2023. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it will never be observable again. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 14 48.26 -61 57.0 3.658 3.259 58 16.4 5:38 (346,-10) Jan. 14 15 8.06 -63 46.7 3.610 3.253 61 16.4 5:38 (347,-12) C/2022 A3 ( Lemmon-ATLAS ) Now it is 16.9 mag (Jan. 3, ATLAS Chile). It stays observable at 16 mag for a long time from early 2023 to early 2024. In the Northern Hemisphere, it is observable only until 2023 spring. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 14.89 -0 13.6 3.681 4.374 129 16.7 3:12 ( 0, 55) Jan. 14 10 8.26 -1 9.5 3.567 4.342 137 16.6 2:37 ( 0, 54) (65803) Didymos Due to the DART spacecraft impact to its satellite Dimorphos on Sept. 26, the cometary activity was detected. It brightened up to 12.9 mag (Sept. 28, John Drummond). It is fading after that. It has already faded down to 15.9 mag (Oct. 29, Katsumi Yoshimoto). It stays observable in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 7 34.05 30 10.7 0.291 1.272 170 16.7 0:32 ( 0, 85) Jan. 14 7 24.15 30 41.4 0.330 1.310 170 17.0 23:49 ( 0, 86) C/2022 L2 ( ATLAS ) Now it is 17.2 mag (Dec. 12, D. Buczynski). It is expected to brighten up to 11.5 mag in 2024 spring. It stays observable in good condition for a long time. At the high light, it will be observable in excellent condition in the Southern Hemisphere, but it will be low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 18 20.21 14 34.8 5.714 4.988 38 16.8 5:38 (261, 13) Jan. 14 18 23.16 14 29.0 5.641 4.936 40 16.7 5:38 (264, 18) C/2019 E3 ( ATLAS ) Now it is 16.4 mag (Jan. 1, iTelescope Observatory, Siding Spring). Very far object. It stays 16-17 mag for a long time from 2021 to 2026. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable at all. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 6 34.78 -76 34.6 10.559 10.447 80 16.9 23:24 ( 0,-22) Jan. 14 6 19.04 -76 31.5 10.546 10.441 81 16.9 22:41 ( 0,-22) 263P/Gibbs Now it is 17.3 mag (Jan. 3, Masayoshi Yoshimi). It brightens rapidly, and it is observable at 16.5 mag in good condition from January to March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 42.51 18 3.7 0.387 1.268 130 17.2 3:38 ( 0, 73) Jan. 14 11 11.42 20 7.3 0.364 1.252 130 16.9 3:39 ( 0, 75) P/2021 N2 ( Fuls ) It brightened very rapidly up to 15.5 mag from last autumn to last winter (Nov. 2, 2021, Toshihiko Ikemura, Hirohisa Sato). Now it is fading slowly. It has already faded down to 16.9 mag (Dec. 18, ATLAS Chile). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 6 23.86 9 22.4 3.545 4.494 162 17.0 23:17 ( 0, 64) Jan. 14 6 20.25 9 24.1 3.590 4.514 157 17.1 22:46 ( 0, 64) 402P/2020 Q3 ( LINEAR ) It brightened up to 15.3 mag in last winter (Jan. 12, 2022, H. Nohara). Now it is fading. It has already faded down to 17.0 mag (Jan. 2, Purple Mountain Observatory, XuYi Station). It will be observable at 17 mag in good condition in next winter. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 25.32 23 9.7 3.745 4.496 135 17.0 3:22 ( 0, 78) Jan. 14 10 23.92 24 3.0 3.695 4.514 142 17.0 2:53 ( 0, 79) 94P/Russell 4 Now it is 17.4 mag (Jan. 3, A. Diepvens). It brightens rapidly, and it is observable at 16.5 mag in good condition in spring. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 8 49.29 25 38.4 1.472 2.408 157 17.2 1:46 ( 0, 81) Jan. 14 8 45.09 26 20.2 1.429 2.391 164 17.0 1:15 ( 0, 81) 246P/NEAT Now it is 16.5 mag (Jan. 1, ATLAS Chile). It brightened up to 14 mag from 2020 to 2021. Now it is fading slowly. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 0 17.22 -13 34.6 4.396 4.213 72 17.0 18:33 ( 25, 38) Jan. 14 0 21.37 -12 41.8 4.512 4.230 67 17.1 18:39 ( 34, 36) C/2020 H6 ( ATLAS ) Now it is 17.1 mag (Dec. 14, A. Diepvens). Fading slowly. In the Southern Hemisphere, it is not observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 17 34.90 40 59.9 6.230 5.919 67 17.1 5:38 (240, 34) Jan. 14 17 42.66 41 47.6 6.235 5.951 68 17.2 5:38 (241, 38) C/2020 F2 ( ATLAS ) Now it is 17.1 mag (Jan. 3, ATLAS Chile). It stays 17 mag and observable in good condition for a long time until 2023 summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 13 35.44 4 52.8 8.890 8.876 85 17.2 5:38 (335, 57) Jan. 14 13 34.49 5 15.2 8.770 8.880 93 17.2 5:38 (348, 60) 244P/Scotti Now it is 17.1 mag (Dec. 29, D. Buczynski). It is observable at 17 mag in good condition in winter. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 6 1.00 26 22.7 2.971 3.925 163 17.2 22:54 ( 0, 81) Jan. 14 5 56.84 26 19.9 3.008 3.927 155 17.3 22:22 ( 0, 81) 199P/Shoemaker 4 Appearing in the morning sky. It stays observable at 14-15 mag from spring to autumn. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 16 38.82 -10 16.9 3.988 3.270 38 17.4 5:38 (297, 18) Jan. 14 16 48.60 -10 50.1 3.907 3.249 42 17.3 5:38 (301, 21) C/2019 O3 ( Palomar ) Now it is 17.5 mag (Dec. 15, P.-J. Dekelver). Fading slowly. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 17 59.33 64 11.4 9.614 9.625 87 17.3 5:38 (212, 36) Jan. 14 18 4.23 64 42.5 9.623 9.641 88 17.3 5:38 (211, 38) C/2014 UN271 ( Bernardinelli-Bernstein ) Now it is 17.4 mag (Dec. 28, ATLAS South Africa). Very large comet. It is expected to brighten up to 14 mag in 2031. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until 2030. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 2 28.44 -60 33.9 18.279 18.127 79 17.4 19:22 ( 0, -5) Jan. 14 2 27.82 -60 18.8 18.296 18.102 77 17.4 18:53 ( 0, -5) 107P/(4015) Wilson-Harrington Now it is 17.0 mag (Nov. 26, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 7 21.62 20 2.0 0.912 1.894 176 17.4 0:19 ( 0, 75) Jan. 14 7 10.54 20 13.7 0.972 1.952 172 17.7 23:35 ( 0, 75) C/2020 F5 ( MASTER ) It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 17.5 mag (Dec. 20, Martin Masek). It will be fainter than 18 mag in March. It is already unobservable in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 23 22.58 15 59.4 6.962 6.737 72 17.5 18:33 ( 67, 54) Jan. 14 23 25.03 16 18.5 7.104 6.777 66 17.6 18:39 ( 74, 48) 22P/Kopff It brightened up to 11.1 mag in 2022 spring (May 21, Thomas Lehmann). Now it is fading. It has already faded down to 18.1 mag (Dec. 6, iTelescope Observatory, Siding Spring). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 1 4.22 1 26.3 2.832 2.986 89 17.5 18:33 ( 15, 56) Jan. 14 1 9.72 2 12.0 2.971 3.026 83 17.8 18:39 ( 27, 54) C/2021 S4 ( Tsuchinshan ) Now it is 17.6 mag (Dec. 13, ATLAS-HKO, Haleakala). It stays 17 mag for a long time from 2023 to 2024. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 2 20.15 27 58.0 6.611 7.086 115 17.6 19:14 ( 0, 83) Jan. 14 2 20.67 27 54.7 6.699 7.071 108 17.6 18:47 ( 0, 83) 395P/2020 H1 ( Catalina-NEAT ) Now it is 17.9 mag (Dec. 25, Catalina Sky Survey). It continued brightening even after the perihelion passage. It will be fading after this, and it will be fainter than 18 mag in February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 23 24.61 -1 38.0 4.817 4.493 65 17.6 18:33 ( 48, 42) Jan. 14 23 29.98 -1 8.1 4.927 4.508 59 17.6 18:39 ( 55, 38) P/2021 V2 ( Fuls ) Now it is 17.8 mag (Dec. 26, Ken-ichi Kadota). It is observable at 17.5 mag in good condition in winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 9 0.82 -0 9.6 2.649 3.498 144 17.7 1:58 ( 0, 55) Jan. 14 8 58.13 -0 20.8 2.604 3.497 151 17.7 1:27 ( 0, 55) 211P/Hill Now it is 18.1 mag (Dec. 30, Ken-ichi Kadota). It brightens up to 17.5 mag from January to February. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 11 52.44 15 46.9 1.841 2.408 113 17.8 4:48 ( 0, 71) Jan. 14 11 57.16 16 44.6 1.779 2.420 119 17.7 4:26 ( 0, 72) C/2021 QM45 ( PanSTARRS ) Now it is 17.9 mag (Dec. 27, Ken-ichi Kadota). In the Northern Hemisphere, it stays observable at 17 mag in good condition for a long time until winter. In the Southern Hemisphere, it stays extremely low for a long time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 8 0.70 50 59.5 2.260 3.149 149 17.7 0:58 (180, 74) Jan. 14 7 54.66 50 43.3 2.288 3.182 150 17.8 0:25 (180, 74) 44P/Reinmuth 2 Now it is 17.6 mag (Dec. 26, A. Diepvens). It will be fading after this, and it will be fainter than 18 mag in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 2 55.48 22 0.0 2.174 2.817 121 17.8 19:49 ( 0, 77) Jan. 14 2 58.09 21 49.3 2.287 2.846 115 17.9 19:25 ( 0, 77) C/2019 F1 ( ATLAS-Africano ) It brightened up to 14.2 mag in 2021 summer (July 18, 2021, Taras Prystavski). Now it is fading. It has already faded down to 17.3 mag (Dec. 22, ATLAS South Africa). In the Southern Hemisphere, it stays observable in good condition for a long time. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 1 14.38 -18 6.5 6.043 6.024 84 17.8 18:33 ( 7, 37) Jan. 14 1 15.27 -17 7.6 6.192 6.068 78 17.9 18:39 ( 17, 36) C/2020 J1 ( SONEAR ) It brightened up to 12.3 mag from spring to summer in 2021 (June 15, 2021, Marco Goiato). Now it is fading. It has already faded down to 17.7 mag (Jan. 2, J. Jahn). It will be fainter than 18 mag in January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 12 41.22 36 52.8 6.027 6.411 108 17.9 5:37 (180, 88) Jan. 14 12 38.63 38 4.2 5.983 6.458 114 17.9 5:07 (180, 87) 452P/2022 B5 ( Sheppard-Jewitt ) Now it is 18.4 mag (Dec. 18, Ken-ichi Kadota). It stays observable at 18 mag in good condition from January to March. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 10 35.56 11 60.0 3.521 4.221 130 18.0 3:32 ( 0, 67) Jan. 14 10 34.89 12 15.8 3.439 4.215 137 17.9 3:04 ( 0, 67) C/2021 P4 ( ATLAS ) It brightened up to 10.4 mag from June to July (July 22, Ken-ichi Kadota). Now it is fading. Appearing in the morning sky in the Souther Hemisphere. It was originally predicted as 15 mag now. But actually, now it is very faint as 18.4 mag (Jan. 2, Martin Masek). It will never be observable again in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Jan. 7 18 37.47 -65 0.2 3.226 2.594 42 18.3 5:38 (330,-31) Jan. 14 19 7.20 -64 58.5 3.294 2.674 43 18.6 5:38 (330,-31)