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Now it is bright as 8.3 mag (Aug. 1, Carlos Labordena). It is observable at 7.5-8 mag for a long time from 2022 to 2023. In the Northern Hemisphere, it stays observable in good condition until autumn. However, it is not observable at the high light from autumn to 2023 summer. 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)
Aug. 13 16 11.72 -15 40.4 1.956 2.410 103 8.3 20:24 ( 29, 34)
Aug. 20 16 5.09 -18 23.9 2.020 2.355 96 8.3 20:13 ( 34, 29)
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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)
Aug. 13 10 30.71 3 16.0 2.011 1.104 19 9.8 20:24 (104,-14)
Aug. 20 10 46.09 -2 18.1 2.035 1.132 19 10.0 20:13 (100,-18)
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It brightened up to 9.3 mag in early summer (June 5, Chris Wyatt). Now it is fading. It has already faded down to 13.8 mag (July 21, M. Mattiazzo). In the Southen Hemisphere, it stays observable in good condition for a long time, although it becomes 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)
Aug. 13 9 47.93 -41 59.7 2.304 1.947 56 11.2 20:24 ( 63,-44)
Aug. 20 9 53.27 -40 53.7 2.412 1.985 53 11.4 3:52 (296,-45)
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Now it is 12.3 mag (July 19, Thomas Lehmann). It brightens up to 11-12 mag from summer 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 its two fragments at 19 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 12 54.85 -6 21.7 1.117 0.990 55 11.7 20:24 ( 75, 9)
Aug. 20 13 19.34 -10 35.9 1.076 0.977 55 11.5 20:13 ( 70, 8)
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It brightened up to 8.3 mag in winter (Jan. 6, Toshiyuki Takahashi). Now it is fading. Now it is not observable. It will appear in the morning sky again in September in the Southern Hemisphere, or in October in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 8 48.28 -1 58.4 4.991 4.051 19 11.6 3:44 (257,-21)
Aug. 20 8 55.18 -3 13.2 5.003 4.081 21 11.7 3:52 (262,-16)
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Now it is bright as 12.4 mag (July 20, 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)
Aug. 13 12 39.52 -3 6.9 4.851 4.277 50 12.3 20:24 ( 80, 8)
Aug. 20 12 46.28 -3 1.1 4.937 4.284 45 12.3 20:13 ( 82, 6)
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Now it is bright as 12.8 mag (Aug. 3, Michael Jager). 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)
Aug. 13 17 3.27 35 15.5 2.127 2.504 99 12.6 20:24 ( 95, 80)
Aug. 20 16 47.62 34 27.8 2.144 2.423 93 12.5 20:13 ( 94, 73)
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Now it is 13.7 mag (July 25, Chris Wyatt). It will brighten up to 12.5 mag in summer. In the Southern Hemisphere, it stays observable in excellent condition for a long time. In the Northern Hemisphere, it locates extremely low for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 17 2.54 -47 28.4 2.381 2.976 116 12.6 20:24 ( 8, 7)
Aug. 20 16 53.42 -44 5.4 2.479 2.968 109 12.7 20:13 ( 13, 9)
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Now it is 13.3 mag (Aug. 4, Z. Banfalvy). 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)
Aug. 13 10 10.73 52 49.1 4.414 3.680 38 12.9 20:24 (145, 14)
Aug. 20 10 15.16 52 40.2 4.338 3.625 40 12.8 20:13 (147, 13)
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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)
Aug. 13 10 29.12 11 56.5 2.082 1.133 14 13.4 20:24 (111, -9)
Aug. 20 10 55.59 9 52.1 2.047 1.101 14 12.9 20:13 (108, -9)
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Now it is 12.5 mag (Aug. 4, Michael Jager). 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)
Aug. 13 1 40.34 4 12.6 1.469 2.108 115 12.9 3:44 (345, 58)
Aug. 20 1 41.59 3 55.3 1.440 2.150 121 13.1 3:50 ( 0, 59)
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Now it is 13.3 mag (Aug. 3, Michael Jager). 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)
Aug. 13 17 26.13 4 46.3 3.450 4.008 116 13.3 20:24 ( 12, 59)
Aug. 20 17 22.04 2 51.1 3.500 3.968 110 13.3 20:13 ( 21, 56)
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Now it is not observable. It will appear in the morning sky in September in the Northern Hemisphere, or in November 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)
Aug. 13 8 17.10 18 50.1 2.936 1.995 17 13.6 3:44 (245, -2)
Aug. 20 8 34.33 17 56.5 2.876 1.958 20 13.4 3:52 (248, 0)
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Now it is 13.5 mag (July 29, Chris Wyatt). It stays observable at 13-14 mag for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 18 25.30 -32 25.8 2.246 3.045 134 13.5 20:59 ( 0, 23)
Aug. 20 18 24.82 -32 20.4 2.317 3.047 128 13.5 20:31 ( 0, 23)
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Now it is 13.7 mag (July 22, Ken-ichi Kadota). 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 locates extremely low in 2022, but it will be observable in good condition in 2023.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 13 25.13 26 11.5 4.643 4.161 55 13.6 20:24 (100, 33)
Aug. 20 13 24.78 24 37.1 4.697 4.131 50 13.6 20:13 (101, 29)
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Appearing in the morning sky. Now it is 15.9 mag (July 30A. Diepvens).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 6 26.61 29 6.0 6.695 6.013 44 14.0 3:44 (250, 24)
Aug. 20 6 31.66 29 3.9 6.616 6.016 49 13.9 3:52 (254, 30)
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Now it is 15.0 mag (Aug. 4, Michael Jager). 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)
Aug. 13 22 58.81 -27 8.3 1.177 2.142 155 14.1 1:35 ( 0, 28)
Aug. 20 22 51.81 -27 52.8 1.203 2.181 159 14.3 1:01 ( 0, 27)
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Now it is 14.6 mag (Aug. 5, ATLAS South Africa). It becomes too low to observe in mid August in the Northern Hemisphere, or in late September in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 12 17.72 -2 4.4 2.803 2.205 44 14.3 20:24 ( 84, 4)
Aug. 20 12 30.82 -3 36.5 2.858 2.210 41 14.4 20:13 ( 83, 3)
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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)
Aug. 13 4 49.76 -49 58.1 1.994 2.221 88 14.4 3:44 (328, -8)
Aug. 20 5 0.50 -54 55.8 2.049 2.305 91 14.8 3:52 (334, -9)
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It brightened up to 6.7 mag in early May (May 10, Mike Olason). It became brighter than originally predicted by 3 mag. Now it is fading rapidly. The condition is very bad in this apparition. It is observable only in the extremely low sky from mid May to mid July in the Northern Hemisphere, or from early June to early August in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 11 10.34 8 30.9 2.701 1.839 25 14.7 20:24 (102, -3)
Aug. 20 11 25.00 6 58.5 2.812 1.919 22 15.0 20:13 (102, -5)
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Now it is 14.5 mag (June 19, 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)
Aug. 13 6 48.66 -40 38.1 3.439 3.180 66 15.1 3:44 (307,-19)
Aug. 20 6 48.27 -41 26.4 3.409 3.192 69 15.1 3:52 (312,-13)
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It is expected to brighten up to 13-14 mag in July. But actually, it is 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)
Aug. 13 12 19.92 -38 26.4 1.700 1.595 66 15.2 20:24 ( 54,-16)
Aug. 20 12 42.73 -35 14.6 1.872 1.660 62 15.6 20:13 ( 56,-13)
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Now it is 17.4 mag (Aug. 6, E. Cortes, N. Paul). 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)
Aug. 13 5 8.81 13 54.7 2.274 2.024 62 15.5 3:44 (276, 32)
Aug. 20 5 24.54 13 58.1 2.191 2.000 65 15.3 3:52 (279, 36)
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Now it is very bright in outburst as 14.5 mag (Aug. 8, Michael Jager). It was extremely faint as 20.6 mag on July 29 (Takaaki Oribe). But it suddenly brightened by 4-5 mag up to 16.0 mag on Aug. 1 (ATLAS-MLO, Mauna Loa). It stays observable in good condition for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 18 24.54 13 17.0 1.531 2.282 126 15.3 20:57 ( 0, 68)
Aug. 20 18 23.20 11 48.9 1.534 2.241 121 15.3 20:29 ( 0, 67)
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Now it is 16.9 mag (Aug. 4, Michael Jager). 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. It will be observable in good condition after August also in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 4 53.11 37 18.9 3.899 3.582 64 15.5 3:44 (250, 45)
Aug. 20 4 58.85 36 48.7 3.740 3.523 69 15.3 3:52 (253, 51)
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Now it is 16.2 mag (July 21, ATLAS South Africa). 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)
Aug. 13 14 23.94 -49 0.9 5.331 5.441 90 15.5 20:24 ( 31, -6)
Aug. 20 14 22.66 -48 53.9 5.458 5.462 84 15.6 20:13 ( 33, -8)
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Now it is 16.0 mag (Aug. 2, Michael Jager). It is observable at 15-16 mag in good condition from July to August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 16 33.12 14 15.1 1.195 1.710 101 15.5 20:24 ( 46, 63)
Aug. 20 16 10.97 15 8.7 1.332 1.678 90 15.6 20:13 ( 61, 57)
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It brightened up to 8.8 mag from winter to early spring (Jan. 31, Chris Wyatt). Now it is fading. It has already faded down to 16.8 mag (July 30, J. Nicolas, F. Kugel). It locates extremely low in the Southern Hemisphere. It will be unobservable in August in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 11 15.01 27 58.9 3.271 2.421 27 15.7 20:24 (118, 9)
Aug. 20 11 28.46 26 32.0 3.343 2.472 25 15.9 20:13 (117, 8)
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Now it is 15.4 mag (Aug. 3, N. Paul, E. Cortes). It will brighten up to 15 mag from summer to winter, and it stays observable in good condition. It locates somwwhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 5 49.20 19 40.3 2.800 2.327 52 15.8 3:44 (264, 27)
Aug. 20 6 2.78 19 48.4 2.736 2.328 56 15.8 3:52 (267, 32)
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Appearing in the morning sky. 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)
Aug. 13 7 22.97 17 17.1 4.601 3.762 30 15.9 3:44 (254, 7)
Aug. 20 7 32.58 17 15.1 4.521 3.734 34 15.8 3:52 (257, 12)
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Now it is 16.0 mag (Aug. 3, Michael Jager). It will brighten rapidly up to 15 mag in September, and it will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 1 10.82 17 2.6 0.827 1.570 116 16.0 3:44 (359, 72)
Aug. 20 1 24.30 13 20.6 0.768 1.562 122 15.8 3:32 ( 0, 69)
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It brightened up to 12.8 mag from late June to early July (June 23, Thomas Lehmann). It is not observable after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 8 25.51 14 2.1 1.808 0.874 15 15.9 3:44 (248, -7)
Aug. 20 8 52.60 12 25.6 1.899 0.962 15 16.9 3:52 (250, -6)
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Now it is 16.2 mag (Aug. 5, J. L. Virlichie, P. Traverse, H. Roy). It will brighten up to 15 mag in autumn, and it will be observable in excellent condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 2 35.53 8 23.7 2.108 2.502 100 16.1 3:44 (318, 57)
Aug. 20 2 40.86 9 33.6 2.013 2.487 105 16.0 3:52 (329, 61)
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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)
Aug. 13 7 0.33 27 13.7 1.527 0.937 36 16.8 3:44 (248, 17)
Aug. 20 7 38.95 24 38.8 1.526 0.897 34 16.0 3:52 (250, 15)
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Now it is 16.3 mag (July 29, Ken-ichi Kadota). It is expected to brighten up to 15 mag in autumn, and it will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 1 24.44 6 28.7 1.529 2.195 117 16.3 3:44 (352, 61)
Aug. 20 1 29.55 6 28.1 1.454 2.183 123 16.2 3:38 ( 0, 62)
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It brightened up to 14 mag in 2021. Now it is fading. It has already faded down to 16.2 mag (Aug. 3, 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)
Aug. 13 0 3.55 13 58.2 5.212 5.941 132 16.3 2:40 ( 0, 69)
Aug. 20 0 0.15 14 21.1 5.176 5.977 139 16.3 2:09 ( 0, 69)
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Now it is 16.2 mag (Aug. 3, ATLAS-MLO, Mauna Loa). It continued brightening even after the perihelion passage. It stays observable at 16-17 mag in good condition for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 23 24.43 0 2.5 3.339 4.232 147 16.4 2:01 ( 0, 55)
Aug. 20 23 21.90 -0 12.8 3.301 4.242 155 16.4 1:31 ( 0, 55)
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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)
Aug. 13 8 21.10 -25 7.6 8.200 7.495 43 16.4 3:44 (282,-28)
Aug. 20 8 26.03 -25 31.7 8.154 7.459 43 16.4 3:52 (286,-22)
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Now it is 16.0 mag (Aug. 3, ATLAS-MLO, Mauna Loa). It brightened up to 14 mag from 2020 to 2021. Now it is fading slowly. It is observable at 16.5-17 mag in 2022.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 0 51.51 -16 8.2 3.109 3.855 131 16.5 3:27 ( 0, 39)
Aug. 20 0 49.76 -16 44.4 3.063 3.872 137 16.5 2:58 ( 0, 38)
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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. It is getting observable again also in the Northern Hemisphere. No observations have been reported since June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 15 58.63 -24 9.2 3.156 3.518 102 16.5 20:24 ( 28, 25)
Aug. 20 15 57.79 -23 29.3 3.359 3.600 95 16.7 20:13 ( 33, 24)
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Now it is 17.1 mag (Apr. 17, ATLAS South Africa). It will brighten up to 14 mag in 2023. In the Southern Hemisphere, it stays observable in good condition for a long time. In the Northern Hemisphere, it is not observable until late August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 6 41.07 -10 50.9 4.796 4.201 48 16.6 3:44 (283, -1)
Aug. 20 6 42.02 -11 21.6 4.680 4.161 53 16.5 3:52 (288, 6)
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Now it is 17.3 mag (Aug. 3, Michael Jager). 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)
Aug. 13 6 16.87 29 38.7 2.114 1.597 46 16.7 3:44 (251, 26)
Aug. 20 6 40.22 28 56.1 2.072 1.586 48 16.6 3:52 (253, 28)
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Now it is 16.6 mag (Aug. 7, Purple Mountain Observatory, XuYi Station). 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)
Aug. 13 21 51.51 10 15.7 6.060 6.987 154 16.6 0:28 ( 0, 65)
Aug. 20 21 46.69 9 22.0 6.064 7.012 157 16.6 23:51 ( 0, 64)
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Now it is 16.0 mag (Aug. 1, Toshihiko Ikemura, Hirohisa Sato). 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)
Aug. 13 15 25.27 41 19.5 5.407 5.316 79 16.6 20:24 (113, 61)
Aug. 20 15 27.42 40 52.2 5.486 5.342 76 16.7 20:13 (113, 58)
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Now it is 17.4 mag (Aug. 11, W. Hasubick). 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)
Aug. 13 4 9.17 9 24.7 3.542 3.477 78 16.8 3:44 (291, 42)
Aug. 20 4 15.34 9 2.8 3.445 3.475 83 16.7 3:52 (298, 47)
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Now it is 17.0 mag (July 23, iTelescope Observatory, Mayhill). 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)
Aug. 13 3 10.44 24 24.0 2.074 2.278 88 16.8 3:44 (284, 62)
Aug. 20 3 18.64 25 7.3 2.014 2.298 92 16.7 3:52 (289, 67)
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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 16.6 mag (July 26, 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)
Aug. 13 2 20.81 -25 43.0 4.662 5.122 111 16.8 3:44 (342, 27)
Aug. 20 2 19.44 -25 58.4 4.625 5.163 116 16.8 3:52 (351, 29)
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Now it is 16.6 mag (July 29, 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)
Aug. 13 17 27.88 67 46.5 9.324 9.322 86 16.9 20:24 (176, 57)
Aug. 20 17 22.21 67 23.2 9.344 9.335 86 17.0 20:13 (172, 57)
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Now it is 16.9 mag (July 29, Ken-ichi Kadota). 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)
Aug. 13 3 33.97 6 24.4 4.406 4.474 87 17.2 3:44 (302, 46)
Aug. 20 3 32.88 5 47.1 4.216 4.408 94 17.1 3:52 (313, 52)
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Now it is 16.8 mag (Aug. 3, Martin Masek). 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 will appear in the morning sky in mid August also in the Northern Hemisphere, but it stays low in 2022.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 5 59.33 -21 15.3 6.732 6.335 62 17.2 3:44 (297, 1)
Aug. 20 6 3.21 -21 56.2 6.607 6.275 66 17.1 3:52 (302, 6)
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Now it is 16.4 mag (July 21, J.-C. Merlin). 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)
Aug. 13 19 21.64 -28 5.4 2.393 3.294 147 17.1 21:55 ( 0, 27)
Aug. 20 19 19.33 -28 16.8 2.463 3.306 140 17.2 21:25 ( 0, 27)
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Now it is 16.9 mag (Aug. 3, Jean-Francois Soulier). 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)
Aug. 13 4 18.64 27 15.8 0.468 0.980 72 17.1 3:44 (267, 49)
Aug. 20 4 57.70 28 3.6 0.506 0.969 70 17.2 3:52 (266, 49)
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Now it is 17.1 mag (July 25, ATLAS-MLO, Mauna Loa). 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)
Aug. 13 17 19.52 72 55.1 3.856 3.874 83 17.2 20:24 (176, 52)
Aug. 20 17 17.11 70 12.0 3.848 3.889 84 17.2 20:13 (172, 54)
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Now it is 16.7 mag (Aug. 5, ATLAS-MLO, Mauna Loa). 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)
Aug. 13 17 47.94 30 33.3 5.130 5.560 110 17.3 20:24 ( 8, 85)
Aug. 20 17 45.99 30 21.1 5.217 5.585 106 17.3 20:13 ( 46, 83)
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Now it is 17.3 mag (July 18, ATLAS-MLO, Mauna Loa). It stays observable at 17-18 mag for a long time until 2024.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 13 17.00 4 35.5 9.332 8.819 56 17.3 20:24 ( 81, 20)
Aug. 20 13 17.29 4 29.9 9.429 8.819 50 17.3 20:13 ( 83, 17)
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Now it is 16.9 mag (July 31, Toshihiko Ikemura, Hirohisa Sato). It will be fading rapidyly, and it will be fainter than 18 mag in late August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 16 5.99 -12 24.6 0.960 1.532 101 17.3 20:24 ( 33, 36)
Aug. 20 15 39.24 -10 49.0 1.149 1.511 88 17.6 20:13 ( 45, 32)
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It brightened very rapidly up to 15.5 mag from autumn to winter (Nov. 2, Toshihiko Ikemura, Hirohisa Sato). Now it is fading. Appearing in the morning sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 6 2.66 16 18.9 4.700 4.117 49 17.5 3:44 (265, 23)
Aug. 20 6 9.60 16 1.2 4.635 4.133 54 17.5 3:52 (270, 28)
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It was observed at 17 mag in 2021. It is observable at 17-18 mag also in 2022.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 2 57.89 8 56.5 3.181 3.425 95 17.5 3:44 (310, 54)
Aug. 20 2 59.30 9 42.9 3.100 3.445 101 17.5 3:52 (321, 59)
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Now it is 17.1 mag (Aug. 11, W. Hasubick). 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)
Aug. 13 2 43.20 29 41.7 5.299 5.436 92 17.6 3:44 (278, 69)
Aug. 20 2 38.53 29 44.0 5.180 5.446 99 17.5 3:52 (290, 77)
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Now it is 17.4 mag (July 8, J.-G. Bosch, J. Nicolas, F. Kugel). It is observable at 17 mag from spring to summer. In the Northern Hemisphere, it becomes low in summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 12 56.22 -7 6.6 2.406 2.018 55 17.6 20:24 ( 74, 9)
Aug. 20 13 8.18 -9 24.2 2.465 2.019 52 17.7 20:13 ( 73, 7)
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Now it is 17.5 mag (July 4, Michael Jager). 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)
Aug. 13 5 33.06 42 7.0 3.186 2.773 57 17.7 3:44 (241, 39)
Aug. 20 5 48.75 42 50.0 3.123 2.774 60 17.6 3:52 (241, 43)
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Now it is 17.8 mag (July 26, J. Nicolas, F. Kugel). It is observable in excellent condition. But it will be fading rapidly, and it will be fainter than 18 mag in August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 15 47.41 -28 17.6 0.953 1.516 100 17.7 20:24 ( 28, 20)
Aug. 20 16 5.05 -31 15.2 1.014 1.535 98 17.9 20:13 ( 27, 18)
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Now it is 17.3 mag (July 18, ATLAS-MLO, Mauna Loa). It will be unobservable in September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 13 31.33 -10 9.3 5.068 4.729 64 17.7 20:24 ( 66, 14)
Aug. 20 13 36.23 -10 40.2 5.164 4.732 59 17.8 20:13 ( 68, 11)
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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)
Aug. 13 7 27.48 -47 10.2 6.003 5.697 67 17.8 3:44 (310,-28)
Aug. 20 7 30.83 -48 22.0 6.001 5.715 68 17.8 3:52 (314,-23)
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Now it is 18.6 mag (Aug. 4, W. Hasubick). 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)
Aug. 13 2 34.24 -5 33.6 4.751 5.104 104 17.9 3:44 (329, 45)
Aug. 20 2 34.99 -5 51.7 4.680 5.129 110 17.8 3:52 (341, 47)
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Now it is 18.7 mag (July 26, J.-G. Bosch, J. Nicolas, F. Kugel). 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)
Aug. 13 23 57.39 -8 38.9 1.430 2.323 143 17.9 2:33 ( 0, 46)
Aug. 20 23 56.40 -8 41.8 1.390 2.322 150 17.9 2:05 ( 0, 46)
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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)
Aug. 13 8 4.55 -63 18.1 10.732 10.601 79 17.9 3:44 (327,-37)
Aug. 20 8 7.80 -63 45.4 10.736 10.592 79 17.9 3:52 (328,-33)
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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)
Aug. 13 4 9.82 40 4.8 1.639 1.653 72 17.9 3:44 (248, 54)
Aug. 20 4 12.17 41 6.5 1.604 1.720 78 18.0 3:52 (247, 60)
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Now it is 18.8 mag (July 25, Toshihiko Ikemura, Hirohisa Sato). It was expected to be observable at 16 mag in good condition in spring. But actually, it is fainter than predicted by 2-3 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 20 37.41 10 47.9 1.071 2.019 151 19.7 23:10 ( 0, 66)
Aug. 20 20 32.44 10 10.6 1.130 2.066 149 19.9 22:37 ( 0, 65)
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Now it is 20.0 mg (Aug. 4, J. Maikner). At the discovery, it was expected to be observable at 16-17 mag for a long time from 2020 to 2022. It had been lost for a long time since 2015, but the recent observations are found. Actually, it brigthens up to 20-21 mag at best.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 13 0 53.99 11 7.2 5.614 6.225 123 21.3 3:30 ( 0, 66)
Aug. 20 0 53.18 11 10.5 5.543 6.241 129 21.2 3:02 ( 0, 66)
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