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It returns for the first time in 70 years. It will brighten up to 4.5 mag in spring. Now it is 5.5 mag (Mar. 13, Osamu Miyazaki). It will fade out rapidly after this. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it is not observable now, but it will appear in April.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 0 54.40 31 3.6 1.632 1.028 36 5.8 19:41 (114,-21)
Mar. 23 1 28.33 27 55.1 1.619 0.951 32 5.4 19:31 (113,-16)
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Now it is 10.1 mag (Mar. 10, Osamu Miyazaki). Fading gradually. 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 May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 18 50.84 7 45.0 1.298 1.395 73 9.1 4:35 (230, 33)
Mar. 23 19 7.94 14 2.3 1.307 1.432 75 9.2 4:41 (221, 30)
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Now it is 10.1 mag (Mar. 12, Chris Wyatt). It will fade out rapidly after this. It will be fainter than 18 mag in July. It stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 6 20.60 17 36.7 0.990 1.513 99 10.8 19:41 (163, 36)
Mar. 23 6 42.10 17 27.8 1.056 1.544 97 11.1 19:31 (165, 36)
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It brightened up to 7.4 mag from December to January (Dec. 24, Osamu Miyazaki). Now it is 10.5 mag (Mar. 12, Chris Wyatt). Fading rapidly. It will be fainter than 18 mag in June. It stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 12 24.03 10 22.7 0.600 1.585 166 10.9 0:50 (180, 45)
Mar. 23 12 17.87 10 12.8 0.643 1.632 168 11.4 0:16 (180, 45)
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It will approach to Sun down to 0.4 a.u. in late September, and it is expected to brighten up to 0 mag. Now it is 11.9 mag (Mar. 13, Osamu Miyazaki). It will brighten rapidly after this. It stays observable in good condition. At the high light, in the Northern Hemisphere, it will be observable in good condition after the perihelion passage. In the Southern Hemisphere, it will be observable in the low sky before and after the perihelion passage.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 14 54.37 -6 28.4 2.617 3.362 131 11.9 3:20 (180, 62)
Mar. 23 14 46.15 -5 53.9 2.443 3.274 140 11.6 2:44 (180, 61)
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It returned for the first time in 68 years. It will brighten up to 7.5 mag in summer. Now it is 11.1 mag (Mar. 12, Chris Wyatt). It will brighten rapidly after this. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will be unobservable in May. At the high light, it locates low in the Northern Hemisphere, or it is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 3 19.66 9 32.7 2.320 1.929 54 12.6 19:41 (117, 18)
Mar. 23 3 28.29 12 5.6 2.323 1.857 50 12.2 19:31 (117, 15)
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Now it is 12.2 mag (Mar. 13, Osamu Miyazaki). It stays 13 mag for a while. It will be unobservable in May in the Southern Hemisphere, or in June in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 7 13.72 28 18.0 3.551 4.010 110 12.5 19:41 (179, 27)
Mar. 23 7 6.78 29 8.8 3.657 3.985 102 12.5 19:31 (173, 25)
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First return of a new periodic comet which brightened up to 10 mag in 2001. Now it is 12.8 mag (Mar. 1, Alan Hale). It will fade out rapidly after this. It will be fainter than 18 mag in June. 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)
Mar. 16 0 54.47 40 4.9 1.948 1.427 44 12.9 19:41 (123,-26)
Mar. 23 1 12.19 44 11.8 1.960 1.446 45 13.1 19:31 (127,-27)
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It was observed at 9-10 mag for a long time in 2023. Now it is 13.1 mag (Mar. 5, Chris Wyatt). It stays 14 mag for a while. In the Northern Hemisphere, it will never be observable after this. In the Southern Hemisphere, it will be getting higher gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 23 55.01 -39 41.4 4.770 4.033 38 13.4 19:41 ( 47, 8)
Mar. 23 23 59.81 -39 57.3 4.789 4.090 41 13.5 4:41 (313, 9)
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Now it is 13.9 mag (Feb. 28, Ken-ichi Kadota). Fading slowly. In the Northern Hemisphere, it will be unobservable in June. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 14 2.43 -36 40.4 1.945 2.693 129 13.6 2:29 ( 0, 88)
Mar. 23 13 34.29 -38 6.6 1.870 2.695 138 13.5 1:34 ( 0, 87)
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Now it is 13.8 mag (Mar. 3, Yukihiro Sugiyama). It will fade out rapidly after this. It will be fainter than 18 mag in May. It stays observable in good condition. Vladimir Bezugly reported it was visible at around 12 mag in the SWAN images in late January.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 7 59.18 -5 36.9 0.249 1.151 123 13.6 20:26 (180, 60)
Mar. 23 8 54.62 -1 41.2 0.294 1.211 131 14.2 20:53 (180, 57)
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The condition is bad in this apparition. It brightens up to 10 mag in early summer, however, it is not observable at all. Brightening rapidly. It will never be observable after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 0 36.11 -2 58.2 2.298 1.349 13 14.1 19:41 ( 82, -7)
Mar. 23 0 56.80 -0 20.4 2.255 1.296 11 13.6 19:31 ( 85, -8)
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Now it is 12.8 mag (Mar. 9, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in July. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 8 4.75 21 26.4 5.585 6.186 123 13.7 20:27 (180, 34)
Mar. 23 8 4.04 21 22.6 5.684 6.188 116 13.7 19:59 (180, 34)
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Now it is 13.7 mag (Mar. 7, Chris Wyatt). It stays 14 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)
Mar. 16 12 5.66 -37 31.1 4.360 5.165 140 13.8 0:32 ( 0, 87)
Mar. 23 12 3.03 -36 49.7 4.310 5.151 144 13.8 0:01 ( 0, 88)
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It brightened up to 8 mag from 2022 summer to 2023 spring. Now it is 13.8 mag (Mar. 12, Chris Wyatt). Fading slowly. It will be getting lower gradually after this, and it will be unobservable in May. But it will be observable again in July in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 5 7.12 7 42.6 5.328 5.268 81 13.9 19:41 (138, 37)
Mar. 23 5 8.50 8 30.7 5.502 5.328 74 14.1 19:31 (134, 34)
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Now it is 14.1 mag (Mar. 12, Chris Wyatt). It stays 15 mag for a while. It will be unobservable in July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 4 12.96 27 16.6 2.148 2.050 70 14.0 19:41 (139, 14)
Mar. 23 4 27.95 28 0.9 2.206 2.041 67 14.1 19:31 (139, 13)
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Now it is 14.3 mag (Mar. 7, Chris Wyatt). Fading slowly. In the Northern Hemisphere, it will be unobservable in May. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 7 48.21 -42 9.5 4.318 4.769 111 14.2 20:10 ( 0, 83)
Mar. 23 7 40.53 -41 1.7 4.410 4.808 107 14.3 19:35 ( 0, 84)
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It is expected to brighten up to 12 mag in early summer. Now it is 14.5 mag (Mar. 2, Masayoshi Yoshimi). Brightening gradually. It stays extremely low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it will be unobservable in April. At the high light, it is not observable in the Southern Hemisphere, or it locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 27.84 2 46.0 2.237 1.627 41 14.5 19:41 (103, 12)
Mar. 23 2 35.37 6 37.3 2.232 1.554 36 14.2 19:31 (105, 8)
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First return of a new periodic comet which was discovered in 2011, half a year after the perihelion passage. Now it is 14.5 mag (Mar. 10, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. In the Northern Hemisphere, it will be getting lower 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)
Mar. 16 7 40.79 -1 22.4 0.631 1.415 119 14.5 20:03 (180, 57)
Mar. 23 7 42.46 -3 19.7 0.629 1.373 113 14.4 19:38 (180, 59)
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It brightened up to 7.8 mag in late July (July 20, Thomas Lehmann). Now it is 16.2 mag (Mar. 2, Toshihiko Ikemura, Hirohisa Sato). Fading gradually. It stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 13 58.06 13 34.7 2.407 3.270 144 14.6 2:24 (180, 42)
Mar. 23 13 42.53 15 43.1 2.429 3.339 151 14.7 1:41 (180, 39)
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It brightened up to 8.3 mag in 2021-2022 winter (Jan. 6, 2022, Toshiyuki Takahashi). Now it is 15.7 mag (Feb. 29, ATLAS South Africa). It stays 15 mag for a while. In the Northern Hemisphere, it will be unobservable in May. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 10 55.13 -54 0.4 6.921 7.514 123 14.6 23:17 ( 0, 71)
Mar. 23 10 50.94 -53 47.3 6.946 7.559 124 14.6 22:45 ( 0, 71)
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Now it is 14.7 mag (Mar. 9, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this. It will be fainter than 18 mag in June. In the Northern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 7 56.00 33 49.0 0.900 1.625 118 14.9 20:20 (180, 21)
Mar. 23 8 7.83 32 19.7 0.945 1.630 114 15.0 20:04 (180, 23)
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It is expected to brighten up to 12.5 mag in summer. Now it is 16.0 mag (Mar. 11, ATLAS Chile). Brightening slowly. In the Northern Hemisphere, it is not observable now. In the Southern Hemisphere, it stays observable in good condition. Around the high light, it is observable in good condition in the Southern Hemisphere, but it locates very low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 16 29.04 -71 57.9 3.330 3.542 93 15.1 4:35 (357, 53)
Mar. 23 16 39.09 -73 0.9 3.219 3.490 97 15.0 4:38 ( 0, 52)
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Brightening rapidly. Now it is not observable. It will appear in April in the Southern Hemisphere, or in May in the Northern Hemisphere. It brightens up to 11.5 mag in early summer. But it locates very low around the high light.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 23 4.68 -6 53.2 2.810 1.844 10 15.5 4:35 (284, -7)
Mar. 23 23 20.70 -4 28.9 2.760 1.804 13 15.0 4:41 (279, -5)
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Now it is 15.9 mag (Mar. 10, Jean-Claude Merlin). It will fade out rapidly after this. It will be fainter than 18 mag in June. 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)
Mar. 16 17 4.37 -29 40.2 1.139 1.609 97 15.3 4:35 (250, 77)
Mar. 23 16 59.66 -23 22.2 1.063 1.649 106 15.3 4:41 (199, 78)
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It brightened up to 12.1 mag in 2023 spring (May 20, Jose Guilherme de S. Aguiar). Now it is 15.1 mag (Mar. 12, Chris Wyatt). Fading slowly. 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)
Mar. 16 4 22.60 -57 20.9 4.367 4.267 77 15.4 19:41 ( 39, 53)
Mar. 23 4 29.93 -55 5.7 4.426 4.311 76 15.5 19:31 ( 43, 53)
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It approached to Earth down to 0.38 a.u., and brightened up to 8.0 mag in autumn (Sept. 29, Virgilio Gonano). Now it is 15.7 mag (Mar. 3, Ken-ichi Kadota). It will fade out rapidly after this. It will be fainter than 18 mag in May. It stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 8 4.61 -0 11.3 1.430 2.162 125 15.5 20:27 (180, 55)
Mar. 23 8 8.79 0 53.4 1.551 2.222 119 15.9 20:04 (180, 54)
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Now it is 16.9 mag (Feb. 29, ATLAS South Africa). Fading 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)
Mar. 16 18 58.80 -12 41.2 1.523 1.529 71 15.6 4:35 (250, 46)
Mar. 23 19 18.59 -11 54.2 1.489 1.535 73 15.5 4:41 (246, 48)
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It brightened up to 11.1 mag in early 2022 (Mar. 31, 2022, F. Kugel, J.-G. Bosch, J. Nicolas). Now it is 15.3 mag (Mar. 2, Toshihiko Ikemura, Hirohisa Sato). 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)
Mar. 16 17 44.79 24 26.4 6.571 6.654 90 15.6 4:35 (204, 26)
Mar. 23 17 46.35 25 22.1 6.538 6.694 94 15.6 4:41 (196, 28)
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Now it is 16.8 mag (Mar. 3, Toshihiko Ikemura, Hirohisa Sato). 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)
Mar. 16 13 9.73 3 19.7 2.654 3.598 158 15.7 1:36 (180, 52)
Mar. 23 13 5.57 3 44.9 2.610 3.583 165 15.6 1:04 (180, 51)
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Now it is 15.6 mag (Mar. 10, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag for a while. It will be getting lower gradually after this, and it will be unobservable in May in the Northern Hemisphere, or in June in the Southern Hemisphere. But it will be observable again in June in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 4 35.51 -4 48.1 6.965 6.740 72 15.8 19:41 (119, 42)
Mar. 23 4 38.22 -4 5.8 7.031 6.711 67 15.8 19:31 (117, 39)
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Very large comet. It is expected to brighten up to 13 mag in 2031. Now it is 15.8 mag (Feb. 8, Thomas Lehmann). It stays 16 mag for a while. In the Northern Hemisphere, it is not observable now. In the Northern Hemisphere, it is not observable until 2030.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 3 1.60 -62 20.4 16.887 16.587 70 15.8 19:41 ( 35, 42)
Mar. 23 3 4.36 -62 6.2 16.857 16.563 71 15.8 19:31 ( 35, 41)
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It is expected to brighten up to 11.5 mag in 2025 autumn, and it will be observable in good condition. Brightening slowly. In the Northern Hemisphere, it is not observable now, but it will be observable soon. In the Southern Hemisphere, it will be getting higher gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 22 5.29 -11 17.4 6.592 5.716 26 16.0 4:35 (279, 7)
Mar. 23 22 10.83 -10 43.4 6.499 5.675 31 15.9 4:41 (274, 13)
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Now it is 16.1 mag (Feb. 22, ATLAS Chile). It stays 15 mag for a while. In the Northern Hemisphere, it is not observable now. It locates somewhat low in the Southern Hemisphere. But it will become high in summer. The brightness evolution is slower than originally expected.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 4.63 -31 4.1 3.675 3.044 44 15.9 19:41 ( 69, 26)
Mar. 23 2 11.03 -31 18.2 3.661 3.015 43 15.9 19:31 ( 68, 24)
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Now it is 17.0 mag (Mar. 8, ATLAS Chile). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 14 15.63 -28 30.4 2.702 3.454 132 16.2 2:41 (180, 84)
Mar. 23 14 15.57 -28 8.7 2.642 3.460 139 16.2 2:14 (180, 83)
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It must have brightened up to 11 mag in winter. However, it was too low to observe at the high light. Now it is 16.1 mag (Mar. 12, ATLAS Chile). Fading rapidly. It will be fainter than 18 mag in April. In the Northern Hemisphere, it will be getting higher gradually. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 19 0.81 -25 27.9 1.199 1.298 71 16.3 4:35 (268, 52)
Mar. 23 18 37.76 -22 24.4 1.078 1.387 83 16.9 4:41 (251, 62)
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It approached to Sun down to 0.23 a.u. and brightened up to 2.5 mag in mid September (Sept. 18, Juan Jose Gonzalez). Now it is 17.2 mag (Mar. 11, ATLAS Chile). Fading gradually. It will be fainter than 18 mag in May. 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)
Mar. 16 8 26.46 -46 23.7 2.729 3.280 115 16.3 20:48 ( 0, 79)
Mar. 23 8 18.78 -43 53.5 2.845 3.368 113 16.5 20:13 ( 0, 81)
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It brightened up to 13 mag in early 2023. 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)
Mar. 16 16 34.58 -47 27.1 3.793 4.089 100 16.5 4:35 (341, 77)
Mar. 23 16 31.59 -47 12.5 3.745 4.149 107 16.5 4:30 ( 0, 78)
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It will brighten up to 15 mag from summer to autumn. Brightening slowly. In the Northern Hemisphere, it is not observable now, but it will appear in April. In the Southern Hemisphere, it will be getting higher gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 21 34.64 -18 1.4 2.557 1.841 35 16.6 4:35 (280, 17)
Mar. 23 21 52.96 -16 42.4 2.514 1.834 37 16.5 4:41 (277, 20)
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Now it is 16.9 mag (Feb. 26, Jean-Claude Merlin). Fading slowly. It will be fainter than 18 mag in July. In the Northern Hemisphere, it is not observable now, but it will be observable soon. In the Southern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 5 38.70 -59 22.9 1.721 1.956 87 16.6 19:41 ( 27, 61)
Mar. 23 5 33.73 -51 35.8 1.742 1.934 85 16.6 19:31 ( 44, 63)
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Now it is 17.1 mag (Mar. 11, ATLAS Chile). 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)
Mar. 16 16 42.43 -48 58.5 5.496 5.731 98 16.8 4:35 (339, 75)
Mar. 23 16 36.32 -49 44.4 5.360 5.709 105 16.7 4:35 ( 0, 75)
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Now it is 15.7 mag (Mar. 10, Toshihiko Ikemura, Hirohisa Sato). Fading gradually. It will be fainter than 18 mag in May. It stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 8 38.39 -16 37.3 0.926 1.746 130 16.7 21:01 (180, 72)
Mar. 23 8 41.59 -16 24.9 0.960 1.749 126 16.8 20:37 (180, 71)
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Now it is 17.3 mag (Feb. 28, Ken-ichi Kadota). It will brighten rapidly after this. It will be unobservable in April in the Northern Hemisphere, or in May in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 49.04 -3 30.5 3.082 2.500 46 16.9 19:41 (101, 21)
Mar. 23 2 57.72 -2 41.3 3.056 2.414 42 16.8 19:31 (100, 18)
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Now it is 16.7 mag (Mar. 2, Toshihiko Ikemura, Hirohisa Sato). Brightening slowly. It will be unobservable in May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 47.28 10 30.9 2.816 2.262 47 16.9 19:41 (112, 12)
Mar. 23 2 59.40 11 42.2 2.843 2.229 43 16.8 19:31 (112, 10)
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Very far object. Now it is 17.1 mag (Feb. 28, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it is not observable now.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 17.61 -66 20.7 10.632 10.334 69 16.8 19:41 ( 29, 37)
Mar. 23 2 20.18 -65 44.0 10.622 10.336 70 16.8 19:31 ( 30, 36)
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Now it is 17.2 mag (Mar. 2, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag for a while. It will be unobservable in May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 4 50.01 27 0.5 5.034 4.940 78 16.9 19:41 (146, 19)
Mar. 23 4 54.72 26 34.1 5.128 4.928 72 16.9 19:31 (143, 18)
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Now it is 16.5 mag (Mar. 8, Toshihiko Ikemura, Hirohisa Sato). It will fade out rapidly after this. It will be fainter than 18 mag in April. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it will never be observable after this. Thomas Lehmann reported it was bright as 14.8 mag on Mar. 2.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 2 35.22 26 46.4 2.400 1.922 50 16.9 19:41 (123, -1)
Mar. 23 2 48.78 29 10.1 2.480 1.947 47 17.2 19:31 (124, -3)
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Now it is 16.9 mag (Feb. 25, ATLAS Chile). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 4 53.10 -32 16.2 7.584 7.448 78 17.0 19:41 ( 85, 60)
Mar. 23 4 55.97 -31 24.8 7.622 7.427 74 17.0 19:31 ( 85, 57)
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Now it is 16.6 mag (Mar. 9, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag for a while. It locates somewhat low in the Northern Hemisphere. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 15 59.89 -29 35.3 2.663 3.165 111 17.1 4:25 (180, 85)
Mar. 23 16 2.17 -29 46.3 2.573 3.162 117 17.1 4:00 (180, 85)
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Now it is 17.0 mag (Mar. 2, ATLAS-HKO, Haleakala). It stays 17 mag for a while. It will be unobservable in April in the Southern Hemisphere, or in June in the Northern Hemisphere. But it will be observable again in July in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 4 44.88 39 19.4 6.810 6.706 79 17.2 19:41 (151, 8)
Mar. 23 4 48.93 39 11.8 6.917 6.710 73 17.2 19:31 (149, 6)
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Now it is 16.6 mag (Mar. 9, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag for a while. In the Northern Hemisphere, it will be getting lower gradually after this, and it will be unobservable in June. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 7 42.60 -8 1.2 3.956 4.524 119 17.2 20:05 (180, 63)
Mar. 23 7 42.77 -7 37.7 3.999 4.487 113 17.2 19:38 (180, 63)
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Now it is 16.9 mag (Mar. 2, 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)
Mar. 16 10 32.05 9 27.1 4.797 5.745 160 17.3 22:54 (180, 46)
Mar. 23 10 27.62 10 39.8 4.809 5.710 152 17.3 22:22 (180, 44)
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It brightened very rapidly up to 14.9 mag in early summer (July 13, Taras Prystavski). Now it is 18.8 mag (Feb. 7, Toshihiko Ikemura, Hirohisa Sato). Fading gradually. It will be fainter than 18 mag in April. 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)
Mar. 16 13 55.15 32 59.2 2.201 2.999 136 17.4 2:21 (180, 22)
Mar. 23 13 37.11 36 21.8 2.245 3.055 137 17.6 1:36 (180, 19)
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Now it is 18.3 mag (Mar. 12, Jean-Claude Merlin). It stays 17 mag for a while. In the Northern Hemisphere, it will be unobservable in April. In the Southern Hemisphere, it stays observable in good condition. It stays 15 mag for a long time from late 2024 to early 2026.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 6 1.58 -51 55.2 5.341 5.456 91 17.5 19:41 ( 34, 68)
Mar. 23 6 2.15 -50 2.9 5.331 5.417 89 17.5 19:31 ( 42, 67)
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Now it is 17.4 mag (Mar. 6, A. Diepvens). Fading slowly. It will be fainter than 18 mag in May. 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)
Mar. 16 6 55.90 22 28.7 1.922 2.413 107 17.5 19:41 (174, 32)
Mar. 23 7 1.94 22 54.6 1.999 2.408 101 17.5 19:31 (171, 32)
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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)
Mar. 16 15 32.95 -10 32.8 2.297 2.944 121 17.7 3:58 (180, 66)
Mar. 23 15 34.47 -9 49.3 2.212 2.936 128 17.6 3:32 (180, 65)
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Now it is 17.4 mag (Mar. 6, 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)
Mar. 16 11 56.50 20 1.5 8.544 9.492 161 17.6 0:23 (180, 35)
Mar. 23 11 51.99 20 29.4 8.575 9.507 158 17.6 23:46 (180, 35)
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Now it is 17.9 mag (Mar. 8, Jean-Claude Merlin). It stays 18 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)
Mar. 16 4 22.28 -64 53.6 4.048 3.995 79 17.6 19:41 ( 28, 50)
Mar. 23 4 18.44 -63 34.9 4.088 4.019 78 17.7 19:31 ( 31, 49)
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It will brighten up to 14 mag from summer to autumn. Now it is 20.7 mag (Feb. 15, Pan-STARRS 1, Haleakala). It will brighten rapidly after this. It stays observable in good condition. Around the high light, it is observable in good condition in the Southern Hemisphere. But it locates extremely low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 13 18.08 -21 23.3 1.585 2.481 147 18.1 1:44 (180, 76)
Mar. 23 13 13.42 -21 39.9 1.505 2.441 154 17.8 1:12 (180, 77)
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It will brighten up to 16 mag in summer. Brightening slowly. It stays extremely low in the Northern Hemisphere. But it will become high in summer. In the Southern Hemisphere, it stays observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Mar. 16 20 49.40 -27 2.5 2.749 2.223 48 17.9 4:35 (283, 31)
Mar. 23 21 5.23 -26 22.4 2.690 2.222 52 17.8 4:41 (280, 34)
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