Weekly Information about Bright Comets (2022 Sept. 10: South)

Japanese version Home page	Updated on September 11, 2022
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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.

C/2017 K2 ( PanSTARRS ) Now it is bright as 8.5 mag (Aug. 20, Carlos Labordena). It is observable at 7.5-8 mag for a long time from 2022 to 2023. In the Northern Hemisphere, it will be unobservable in mid September. Then it is not observable at the high light until 2023 summer. In the Southern Hemisphere, it stays observable for a long time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 15 55.13 -25 55.8 2.230 2.200 75 8.3 19:11 ( 95, 56) Sept.17 15 54.78 -28 16.2 2.298 2.152 68 8.3 19:16 ( 86, 50) C/2021 P4 ( ATLAS ) It brightened up to 10.4 mag from June to July (July 22, Ken-ichi Kadota). Now it is not observable. In the Souther Hemisphere, it will appear in the morning sky at 12 mag in October. It will never be observable again in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 11 32.06 -18 11.8 2.129 1.275 23 10.7 19:11 ( 67, 0) Sept.17 11 47.99 -23 9.5 2.169 1.337 25 10.9 19:16 ( 61, 0) 73P/Schwassmann-Wachmann 3 Now it is 12.2 mag (Aug. 20, Chris Wyatt). It stays 11-12 mag to autumn. It stays observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it becomes extremely low from August to September. Michael Jager detected several fragments at 17.5-19 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 14 48.56 -23 45.8 0.983 0.997 60 11.4 19:11 ( 88, 42) Sept.17 15 24.82 -27 46.2 0.969 1.024 62 11.6 19:16 ( 83, 45) C/2022 P1 ( NEOWISE ) Bright new comet. Now it is very bright as 12.1 mag (Sept. 6, Ken-ichi Kadota). It stays 11-12 mag until November. In the Southern Hemisphere, it stays observable in good condition for a while. In the Northern Hemisphere, it becomes low rapidly. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 1 53.89 -7 12.5 1.010 1.894 139 12.2 2:41 (180, 62) Sept.17 1 17.23 -16 6.0 0.900 1.848 151 11.8 1:37 (180, 71) C/2019 L3 ( ATLAS ) It brightened up to 8.3 mag in winter (Jan. 6, Toshiyuki Takahashi). Now it is fading. It has already faded down to 13.3 mag (Sept. 4, N. Paul, B. Lutkenhoner, E. Cortes). Appering in the morning sky in the Southern Hemisphere. It will appear in the morning sky in October also in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 9 14.74 -7 10.7 4.997 4.175 31 11.8 4:43 (270, 13) Sept.17 9 20.79 -8 33.9 4.982 4.207 35 11.9 4:33 (269, 16) C/2022 E3 ( ZTF ) Now it is bright as 12.3 mag (Aug. 21, Osamu Miyazaki). It will approach to Earth down to 0.29 a.u. in 2023 February, and it is expected to brighten up to 5 mag. In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it becomes unobservable from late September to early February. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 16 13.74 31 12.3 2.215 2.181 74 12.1 19:11 (150, 17) Sept.17 16 6.42 30 3.4 2.235 2.100 69 12.0 19:16 (142, 13) 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 12.8 mag (Aug. 20, Chris Wyatt). In the Southen Hemisphere, it stays observable in good condition for a long time, although it became temporarily low in August. In the Northern Hemisphere, it is not observable until November when it fades down to 13 mag. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 10 5.83 -39 14.2 2.669 2.114 46 12.0 4:43 (305, 20) Sept.17 10 8.86 -39 6.3 2.731 2.162 46 12.2 4:33 (303, 22) 41P/Tuttle-Giacobini-Kresak The condition is worst in this apparition. It is not observable at all. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 12 18.25 2 33.1 1.975 1.051 16 12.2 19:11 ( 91, -3) Sept.17 12 46.60 -0 6.6 1.965 1.051 17 12.2 19:16 ( 88, -2) C/2020 V2 ( ZTF ) Now it is 12.6 mag (Aug. 18, Ken-ichi Kadota). It is expected to brighten up to 10 mag in 2023. In the Northern Hemisphere, it stays observable in good condition until 2023 autumn, although it becomes very low temporarily in summer. In the Southern Hemipshere, it stays unobservable until 2023 summer. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 10 29.79 52 53.9 4.043 3.459 48 12.4 4:43 (225,-32) Sept.17 10 34.94 53 14.5 3.924 3.405 52 12.3 4:33 (224,-30) C/2019 T4 ( ATLAS ) Now it is bright as 12.5 mag (Aug. 18, Ken-ichi Kadota). It stays 12 mag for a while. It becomes unobservable from August to November in the Northern Hemisphere, or from September to December in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 13 7.69 -2 56.9 5.155 4.312 29 12.5 19:11 ( 93, 10) Sept.17 13 15.11 -2 58.1 5.212 4.323 25 12.5 19:16 ( 90, 5) 81P/Wild 2 Appearing in the morning sky in the Northern Hemisphere. It will appear in the morning sky in November also in the Southern Hemisphere. It will brighten up to 11.5 mag in winter Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 9 27.18 14 33.5 2.689 1.854 27 12.9 4:43 (254, -2) Sept.17 9 45.14 13 12.2 2.626 1.822 29 12.7 4:33 (255, -1) C/2020 K1 ( PanSTARRS ) Now it is 13.4 mag (Aug. 14, Ken-ichi Kadota). It is expected to brighten up to 11 mag in 2023. In the Northern Hemisphere, it stays observable in good condition until November. But it becomes unobservable after that. In the Southern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily from November to January. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 17 15.46 -2 48.3 3.695 3.848 91 13.3 19:11 (148, 54) Sept.17 17 15.10 -4 36.1 3.769 3.810 84 13.3 19:16 (135, 51) 22P/Kopff Now it is 13.6 mag (Aug. 10, Osamu Miyazaki). It stays observable in good condition after this. But it will be fading gradually after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 1 35.76 2 16.1 1.387 2.276 143 13.5 2:22 (180, 53) Sept.17 1 31.02 1 32.1 1.386 2.318 151 13.7 1:49 (180, 53) C/2019 U5 ( PanSTARRS ) Now it is 13.5 mag (Aug. 18, Hiroshi Abe). It is expected to brighten up to 12 mag in 2023. In the Northern Hemisphere, it stays observable in good condition for a long time, although it becomes unobservable temporarily in October. In the Southern Hemisphere, it is not observable until mid December. But it will be observable in good condition in 2023. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 13 26.90 20 9.9 4.817 4.046 36 13.6 19:11 (115, 0) Sept.17 13 28.41 18 46.7 4.839 4.019 31 13.6 19:16 (109, -5) 117P/Helin-Roman-Alu 1 Now it is 13.7 mag (Aug. 19, Ken-ichi Kadota). It stays observable at 13-14 mag for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 18 30.64 -31 52.2 2.571 3.056 109 13.8 19:14 (180, 87) Sept.17 18 34.82 -31 39.8 2.664 3.060 103 13.9 19:16 (121, 84) 29P/Schwassmann-Wachmann 1 Now it is 13.9 mag (Sept. 6. Ken-ichi Kadota). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 44.85 28 58.5 6.339 6.022 67 13.9 4:43 (217, 15) Sept.17 6 48.46 28 57.4 6.237 6.024 73 13.8 4:33 (215, 17) 118P/Shoemaker-Levy 4 Now it is 16.1 mag (Aug. 31, Ken-ichi Kadota). It is expected to brighten very rapidly up to 11-12 mag in winter, and it will be observable in excellent condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 11.39 13 31.8 1.947 1.937 74 14.2 4:43 (219, 32) Sept.17 6 26.68 13 11.5 1.868 1.919 77 13.8 4:33 (219, 33) C/2020 R7 ( ATLAS ) Now it is 14.0 mag (Aug. 20, Chris Wyatt). The brightness evolution is slower than originally expected. It stays 14-15 mag for a long time. It locates extremely low in the Northern Hemisphere. 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) Sept.10 16 42.16 -35 28.3 2.834 2.957 86 14.1 19:11 ( 81, 69) Sept.17 16 41.96 -33 8.1 2.962 2.956 79 14.2 19:16 ( 84, 61) 116P/Wild 4 Now it is 13.8 mag (Aug. 20, Chris Wyatt). It is already unobservable in the Northern Hemisphere. It will be unobservable in late September also in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 13 11.13 -8 10.3 3.013 2.231 32 14.6 19:11 ( 89, 14) Sept.17 13 24.88 -9 39.2 3.060 2.240 29 14.7 19:16 ( 85, 11) C/2021 Y1 ( ATLAS ) Now it is 16.1 mag (Sept. 1, D. Buczynski). It is expected to brighten up to 12 mag from winter to summer in 2023. In the Northern Hemisphere, it stays observable in good condition until 2023 spring. In the Southern Hemisphere, it stays observable in good condition for a long time after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 5 12.09 34 52.1 3.244 3.347 87 14.8 4:43 (196, 18) Sept.17 5 14.81 34 1.9 3.075 3.288 93 14.6 4:33 (193, 20) 9P/Tempel 1 Now it is 14.2 mag (Aug. 17, Thomas Lehmann). Now it is fading. It stays 13-14 mag for a while. It is observable in excellent condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 22 30.77 -28 46.2 1.352 2.301 154 15.0 23:13 (180, 84) Sept.17 22 25.31 -28 36.0 1.423 2.342 148 15.2 22:40 (180, 83) C/2020 Y2 ( ATLAS ) Now it is 14.9 mag (Sept. 4, ATLAS South Africa). It was expected to brighten up to 13 mag in spring. But actually, it is fainter than originally expected. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 40.83 -44 44.7 3.289 3.237 78 15.1 4:43 (300, 58) Sept.17 6 35.51 -46 4.8 3.243 3.255 81 15.2 4:33 (304, 61) 255P/Levy It has not been observed yet in this apparition. It will brighten very rapidly, and it is expected to brighten up to 15 mag in September. It is not observable in the Southern Hemisphere. It locates extremely low even in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 9 24.52 13 55.6 1.597 0.849 27 15.2 4:43 (254, -1) Sept.17 9 55.70 9 54.2 1.639 0.861 26 15.5 4:33 (259, -2) 327P/Van Ness Now it is 14.2 mag (Sept. 6, Michael Jager). It brightened rapidly as predicted. It stays observable at 14-15 mag in good condition in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 1 57.41 -2 55.1 0.653 1.558 138 15.4 2:43 (180, 58) Sept.17 2 5.18 -9 31.0 0.641 1.563 142 15.4 2:23 (180, 64) P/2022 L3 ( ATLAS ) Now it is 15.3 mag (Sept. 6, Ken-ichi Kadota). It stays 15 mag and observable in excellent condition until December. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 2 50.76 13 5.7 1.751 2.447 122 15.6 3:36 (180, 42) Sept.17 2 51.64 14 17.8 1.675 2.436 129 15.5 3:10 (180, 41) C/2020 S4 ( PanSTARRS ) Now it is 15.8 mag (Aug. 31, Ken-ichi Kadota). It will brighten up to 14 mag in early 2023, and it will be observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 8 0.85 17 0.9 4.248 3.656 48 15.6 4:43 (239, 12) Sept.17 8 9.99 16 54.6 4.149 3.631 52 15.5 4:33 (237, 14) 119P/Parker-Hartley Now it is 15.0 mag (Sept. 1, ATLAS-MLO, Mauna Loa). It stays observable in good condition at 15 mag from summer to winter. It locates somwwhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 41.44 19 50.7 2.533 2.336 67 15.7 4:43 (222, 23) Sept.17 6 53.41 19 45.6 2.462 2.341 71 15.6 4:33 (221, 24) 61P/Shajn-Schaldach Now it is 15.6 mag (Sept. 6, Ken-ichi Kadota). It stays 15.5 mag until November, and it stays observable in good condition. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 1 37.69 5 30.9 1.267 2.152 142 15.8 2:23 (180, 49) Sept.17 1 37.83 4 54.3 1.220 2.145 148 15.7 1:56 (180, 50) C/2018 U1 ( Lemmon ) Now it is 16.5 mag (Aug. 17, Thomas Lehmann). It stays at 15-16 mag for a long time. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemiphere, it is not observable after this. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 14 23.55 -48 57.8 5.822 5.528 68 15.8 19:11 ( 53, 44) Sept.17 14 25.12 -49 7.8 5.934 5.551 63 15.8 19:16 ( 51, 39) C/2022 L1 ( Catalina ) Brightened rapidly. Now it is very bright as 14.0 mag (Sept. 2, Michael Jager). It will be fading after this. In the Northern Hemisphere, it stays observable for a long time, although it becomes extremely low in November. In the Southern Hemisphere, it becomes unobservable in late September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 15 34.09 16 14.8 1.751 1.611 65 15.9 19:11 (133, 24) Sept.17 15 27.87 16 26.6 1.878 1.599 58 15.9 19:16 (126, 18) C/2022 A2 ( PanSTARRS ) It is expected to brighten up to 12.5 mag in winter. In the Northern Hemisphere, it will become observable in October. Then it stays observable in good condition after that. In the Southern Hemisphere, it is not observable until 2023 June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 11 28.47 15 32.9 3.639 2.658 11 16.1 19:11 ( 95,-21) Sept.17 11 36.19 16 4.7 3.563 2.597 13 15.9 4:33 (268,-25) 285P/LINEAR It brightened by 6 mag in outburst up to 14.6 mag (Aug. 13, ATLAS-MLO, Mauna Loa). Now it is fading. It stays observable in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 18 28.66 6 42.5 1.577 2.121 108 15.9 19:12 (180, 48) Sept.17 18 33.71 4 55.4 1.599 2.083 103 16.2 19:16 (170, 50) C/2021 F1 ( Lemmon-PanSTARRS ) It brightened up to 9.3 mag from spring to early summer (Mar. 24, Michael Jager). It stayed bright for a while even after the perihelion passaage. But it is fading rapidly now. It has already faded down to 17.1 mag (Aug. 9, iTelescope Observatory, Siding Spring). 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) Sept.10 5 28.92 -68 16.8 2.294 2.556 93 16.1 4:43 (346, 54) Sept.17 5 35.94 -72 5.7 2.397 2.639 92 16.5 4:33 (350, 52) C/2021 X1 ( Maury-Attard ) Now it is 15.5 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It will brighten up to 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) Sept.10 6 41.65 -13 24.9 4.284 4.045 69 16.2 4:43 (250, 47) Sept.17 6 40.09 -14 16.5 4.141 4.007 75 16.1 4:33 (247, 51) C/2021 G2 ( ATLAS ) Now it is 16.8 mag (June 1, ATLAS South Africa). It will brighten up to 13 mag from 2024 to 2025. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 8 40.31 -27 2.7 7.976 7.351 48 16.3 4:43 (284, 30) Sept.17 8 44.80 -27 38.8 7.903 7.316 51 16.2 4:33 (283, 33) C/2021 T4 ( Lemmon ) Now it is 16.2 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It is expected to brighten up to 8 mag in 2023 July. In 2022, it stays observable in good condition while the comet will be brightening gradually. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 3 23.89 3 15.5 3.661 4.208 116 16.6 4:09 (180, 52) Sept.17 3 18.61 2 10.5 3.489 4.142 124 16.4 3:37 (180, 53) 157P/Tritton Now it is 16.1 mag (Sept. 6, Ken-ichi Kadota). It stays observable at 16 mag from summer to winter. In the Southern Hemisphere, it locates low until October. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 7 47.13 25 23.6 1.957 1.572 52 16.4 4:43 (230, 9) Sept.17 8 7.97 23 48.4 1.922 1.574 54 16.4 4:33 (232, 9) 395P/2020 H1 ( Catalina-NEAT ) Now it is 15.9 mag (Sept. 5, Michael Jager). It continued brightening even after the perihelion passage. It stays observable at 16 mag in good condition for a while. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 23 12.41 -1 16.4 3.268 4.273 176 16.4 23:54 (180, 56) Sept.17 23 9.09 -1 40.5 3.285 4.285 172 16.4 23:23 (180, 57) C/2020 F5 ( MASTER ) It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 16.1 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It is observable at 16-17 mag in 2022. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 23 48.05 15 6.5 5.144 6.088 157 16.4 0:34 (180, 40) Sept.17 23 43.69 15 14.2 5.161 6.126 162 16.4 0:02 (180, 40) 408P/2020 M7 ( Novichonok-Gerke ) Now it is 16.8 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It will be 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) Sept.10 4 30.08 7 30.3 3.155 3.470 99 16.5 4:43 (192, 47) Sept.17 4 33.52 6 51.0 3.062 3.469 105 16.4 4:33 (187, 48) 246P/NEAT Now it is 15.6 mag (Sept. 8, ATLAS-MLO, Mauna Loa). It brightened up to 14 mag from 2020 to 2021. Now it is fading slowly. It is observable at 16-17 mag in 2022. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 0 40.03 -18 32.8 2.991 3.925 154 16.5 1:26 (180, 73) Sept.17 0 35.68 -19 3.9 2.992 3.943 158 16.5 0:54 (180, 74) C/2021 T2 ( Fuls ) It was expected to brighten up to 13-14 mag in July. But actually, it was not detected, fainter than 17 mag (July 10, Martin Masek). In the Southern Hemisphere, it stays observable in good condition after this. In the Northern Hemisphere, it is not observable at all. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 13 30.48 -28 31.3 2.396 1.867 47 16.6 19:11 ( 73, 28) Sept.17 13 42.56 -26 58.9 2.563 1.940 42 16.9 19:16 ( 72, 23) 44P/Reinmuth 2 Now it is 16.7 mag (Aug. 21, Ken-ichi Kadota). It will be observable at 16.5 mag in good condition from summer to autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 3 36.57 26 47.1 1.839 2.362 108 16.7 4:22 (180, 28) Sept.17 3 39.91 27 10.0 1.785 2.385 114 16.6 3:58 (180, 28) C/2021 S3 ( PanSTARRS ) Now it is 16.6 mag (Aug. 28, 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. In the Northern Hemisphere, it stays low in 2022. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 13.12 -24 23.8 6.216 6.093 78 16.8 4:43 (259, 59) Sept.17 6 15.70 -25 20.6 6.082 6.032 82 16.7 4:33 (258, 62) C/2019 T3 ( ATLAS ) Now it is 16.4 mag (Aug. 23, ATLAS-MLO, Mauna Loa). It stayed bright for a while even after the perihelion passage, but it will be fading after this. It will be fainter than 18 mag in winter. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 21 32.98 6 26.0 6.178 7.088 152 16.8 22:15 (180, 49) Sept.17 21 28.95 5 25.4 6.249 7.114 147 16.8 21:44 (180, 50) 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 16.4 mag (Sept. 3, ATLAS Chile). 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) Sept.10 2 11.11 -26 42.8 4.559 5.288 132 16.9 2:57 (180, 82) Sept.17 2 7.07 -26 53.3 4.555 5.330 136 16.9 2:25 (180, 82) C/2020 H6 ( ATLAS ) Now it is 16.2 mag (Aug. 21, Thomas Lehmann). It stays observable at 16 mag from 2021 to 2022. It locates low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 15 37.60 39 31.9 5.705 5.420 68 16.9 19:11 (148, 6) Sept.17 15 42.09 39 7.6 5.770 5.447 66 16.9 19:16 (144, 3) C/2019 O3 ( Palomar ) Now it is 16.5 mag (Sept. 7, ATLAS-MLO, Mauna Loa). 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) Sept.10 17 11.29 66 0.7 9.405 9.375 85 17.0 19:11 (172,-12) Sept.17 17 9.59 65 31.9 9.424 9.388 84 17.0 19:16 (168,-13) P/2022 P2 ( ZTF ) Now it is 16.9 mag (Aug. 31, Michael Jager). It stays observable at 17 mag until winter. In the Southern Hemisphere, it locates extremely low until autumn. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 8 0.16 23 22.9 2.546 2.043 49 17.1 4:43 (234, 8) Sept.17 8 14.99 22 13.0 2.505 2.060 52 17.1 4:33 (234, 9) C/2021 A1 ( Leonard ) It brightened up to 3 mag from mid December to late December. Now it is fading. It is observable in good condition in the Southern Hemisphere. No observations have been reported since June. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 16 0.87 -22 8.3 3.966 3.842 75 17.3 19:11 (102, 56) Sept.17 16 3.28 -21 50.9 4.162 3.921 69 17.5 19:16 ( 97, 49) C/2020 U5 ( PanSTARRS ) Now it is 17.3 mag (Aug. 18, Michael Jager). It started fading before the perihelion passage. It was predicted to stay at 16 mag for a long time. But actually, it will be fainter than 18 mag in autumn. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable until 2023. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 17 22.45 61 38.1 3.869 3.941 86 17.3 19:11 (172, -7) Sept.17 17 26.72 58 45.0 3.892 3.960 86 17.4 19:16 (168, -6) C/2020 U4 ( PanSTARRS ) Now it is 17.7 mag (Aug. 27, ATLAS-HKO, Haleakala). It stays observable at 17-18 mag in 2022. It locates somewhat low in the Southern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 2 19.16 29 23.5 4.857 5.476 123 17.4 3:05 (180, 25) Sept.17 2 11.01 29 4.9 4.769 5.487 131 17.4 2:30 (180, 26) 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. It has already faded down to 17.0 mag (Apr. 2, Palomar Mountain--ZTF). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 27.80 14 56.7 4.410 4.181 70 17.4 4:43 (222, 29) Sept.17 6 32.85 14 32.2 4.328 4.198 75 17.4 4:33 (220, 31) 422P/2021 L1 ( Christensen ) It was observed at 17 mag in 2021. It is observable at 17-18 mag also in 2022. But actually, it is much fainter than last year by 3 mag, 20.3 mag (Sept. 5, W. Hasubick). Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 2 57.76 11 53.0 2.875 3.507 121 17.5 3:43 (180, 43) Sept.17 2 55.19 12 33.3 2.812 3.528 128 17.5 3:13 (180, 42) C/2021 QM45 ( PanSTARRS ) Now it is 17.2 mag (Aug. 15, 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) Sept.10 6 34.28 44 36.4 2.933 2.788 71 17.5 4:43 (207, 3) Sept.17 6 48.60 45 5.7 2.869 2.796 75 17.5 4:33 (206, 3) 152P/Helin-Lawrence Now it is 17.1 mag (Aug. 16, ATLAS South Africa). It will be fading gradually after this. It locates somewhat low in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 19 18.53 -28 29.1 2.725 3.345 120 17.5 20:02 (180, 83) Sept.17 19 20.35 -28 26.8 2.826 3.359 113 17.6 19:36 (180, 83) 107P/(4015) Wilson-Harrington Now it is 17.4 mag (Aug. 9, Michael Jager). In 2022, it stays observable at 17 mag for a long time. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 29.45 27 13.5 0.628 0.993 70 17.5 4:43 (215, 18) Sept.17 6 53.06 26 23.7 0.665 1.019 71 17.6 4:33 (217, 18) C/2020 O2 ( Amaral ) Now it is 16.9 mag (Aug. 23, Thomas Lehmann). It was observed at 15 mag in 2021. Now it is fading. It stays observable at 16-17 mag for a while in 2022. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 17 44.24 29 27.6 5.497 5.665 94 17.6 19:11 (170, 25) Sept.17 17 44.99 29 7.4 5.594 5.692 90 17.6 19:16 (162, 23) 378P/2019 E2 ( McNaught ) Now it is 17.9 mag (Aug. 27, ATLAS-MLO, Mauna Loa). It stays 18 mag for a long time even after the perihelion passage. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 2 33.50 -6 58.5 4.501 5.205 129 17.7 3:19 (180, 62) Sept.17 2 31.80 -7 22.9 4.458 5.230 136 17.7 2:50 (180, 62) 442P/2022 G1 ( McNaught ) Now it is 17.5 mag (Sept. 5, Purple Mountain Observatory, XuYi Station). It stays observable at 18 mag in good condition from August to September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 23 47.38 -9 2.1 1.330 2.329 170 17.8 0:34 (180, 64) Sept.17 23 43.23 -9 6.6 1.333 2.335 173 17.8 0:02 (180, 64) (3200) Phaethon It approached to Sun down to 0.14 a.u. on May 15. But it was not observable around that time. In the Northern Hemisphere, it stays observable at 17-18 mag in good condition from July to November. In the Southern Hemisphere, it stays extremely low. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 4 5.91 44 7.7 1.471 1.896 98 17.9 4:43 (182, 11) Sept.17 3 58.12 45 1.3 1.422 1.947 105 17.8 4:17 (180, 10) C/2019 E3 ( ATLAS ) Now it is 17.3 mag (June 27, ATLAS South Africa). Very far object. It stays 18 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) Sept.10 8 16.16 -65 28.7 10.739 10.567 77 17.9 4:43 (330, 42) Sept.17 8 18.25 -66 9.6 10.736 10.559 77 17.9 4:33 (331, 43) C/2022 P3 ( ZTF ) Now it is 17.5 mag (Aug. 25, C. Gerhard). In the Northern Hemisphere, it is observable at 17-18 mag in excellent condition in autumn. In the Southern Hemisphere, it is only observable in extremely low sky in September. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 6 53.57 34 46.1 2.842 2.606 66 17.9 4:43 (215, 9) Sept.17 7 4.33 36 47.3 2.766 2.620 71 17.9 4:33 (213, 8) C/2022 L2 ( ATLAS ) Now it is 17.3 mag (Aug. 29, ATLAS-MLO, Mauna Loa). It is expected to brighten up to 12 mag in 2024. In the Northern Hemisphere, it stays observable in good condition for a long time until 2023 autumn, although it becomes temporarily low in December. In the Southern Hemisphere, it becomes unobservable in October. But it will be observable in excellent condition at the high light. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 18 4.31 27 43.0 5.626 5.870 99 17.9 19:11 (174, 27) Sept.17 18 1.15 26 33.7 5.657 5.818 94 17.9 19:16 (165, 27) C/2020 F7 ( Lemmon ) It brightened up to 17 mag in early 2022. Now it is fading. It will be fainter than 18 mag in autumn. It is not observable in the Northern Hemisphere. Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h) Sept.10 7 38.70 -52 30.0 5.984 5.772 73 17.9 4:43 (312, 48) Sept.17 7 40.29 -54 2.0 5.977 5.792 74 18.0 4:33 (315, 50)