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It approached to Earth down to 0.3 a.u. in mid February, and brightened up to 5.5 mag (Feb. 13, Juan Jose Gonzalez). Now it is fading. But it is still bright as 6.9 mag (Feb. 23, Osamu Miyazaki). In the Northern Hemisphere, it is observable in excellent condition. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 6 21.16 34 55.8 0.496 1.309 119 7.2 20:04 (180, 90)
Mar. 2 5 20.91 34 59.7 0.725 1.333 100 8.2 19:19 ( 93, 82)
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It approached to Earth down to 0.08 a.u. in mid December, and it brightened up to 3.4 mag (Dec. 14, Seiichi Yoshida). it looked so large as 3 times of Moon. Now it is fading. But it is bright as 8.9 mag still now (Feb. 22, Maik Meyer). In the Northern Hemisphere, it stays observable in excellent condition. In the Southern Hemisphere, it stays low for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 9 36.00 47 50.4 0.497 1.411 141 9.7 23:24 (180, 77)
Mar. 2 9 38.94 45 27.4 0.567 1.467 139 10.5 23:00 (180, 80)
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It brightened up to 7.7 mag in June (June 19, Juan Jose Gonzalez). Now it is fading. But it is still bright as 11.5 mag (Feb. 11, Chris Wyatt). In the Southern Hemisphere, it stays observable in good condition for a long time until the comet will fade out. In the Northern Hemisphere, it is not observable for a long time until autumn when the comet fades out down to 16 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 3 31.53 -64 54.5 3.216 3.117 75 11.7 19:13 ( 12,-12)
Mar. 2 3 43.97 -61 39.2 3.266 3.170 75 11.8 19:19 ( 16,-10)
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Now it is 13.5 mag (Jan. 27, Toshihiko Ikemura, Hirohisa Sato). It will be unobservable temporarily soon. But it will appear in the morning sky again at 13-14 mag in August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 0 37.88 4 22.4 2.746 2.039 36 12.5 19:13 ( 83, 18)
Mar. 2 0 53.06 5 43.3 2.781 2.031 33 12.4 19:19 ( 87, 15)
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It brightened up to 9.0 mag from autumn to winter (Nov. 16, Maik Meyer). Now it is fading. But it is bright as 12.4 mag still now (Feb. 23, Seiichi Yoshida). It is observable in excellent condition in the Northern Hemisphere. It stays low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 4 57.95 25 27.0 1.419 1.894 102 12.5 19:13 ( 32, 79)
Mar. 2 5 12.69 25 4.2 1.534 1.945 98 12.9 19:19 ( 47, 76)
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Now it is 12.2 mag (Feb. 2, Ken Harikae). It will be fading gradually after this. In the Northern Hemisphere, it stays observable for a long time until it fades out. But it stays extremely low. It will never be observable again in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 21 51.72 36 6.6 2.559 2.015 46 12.6 5:13 (236, 15)
Mar. 2 22 15.70 37 51.5 2.624 2.063 46 13.0 5:05 (234, 15)
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It brightened up to 9.5 mag from autumn to winter (Dec. 14, Marco Goiato). Now it is fading. But it is bright as 12.6 mag still now (Feb. 23, Seiichi Yoshida). In the Northern Hemisphere, it stays observable in good condition for a long time until it fades out. It locates low in the Southern Hemispehre.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 8 27.62 46 48.2 1.209 2.040 135 12.7 22:16 (180, 78)
Mar. 2 8 30.16 46 5.6 1.302 2.092 131 13.1 21:51 (180, 79)
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Now it is 12.9 mag (Feb. 3, Chris Wyatt). It is observable in excellent 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)
Feb. 23 11 31.24 31 51.3 1.202 2.132 153 13.3 1:23 ( 0, 87)
Mar. 2 11 25.76 31 58.1 1.200 2.136 154 13.3 0:50 ( 0, 87)
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Now it is 14.6 mag (Jan. 22, Thomas Lehmann). It will brighten up to 10-11 mag in autumn. It will be unobservable temporarily in March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 1 12.72 -20 3.2 4.669 3.990 42 13.4 19:13 ( 58, 9)
Mar. 2 1 16.22 -18 17.4 4.693 3.951 37 13.3 19:19 ( 64, 5)
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Now it is 13.0 mag (Feb. 4, Chris Wyatt). It will be fading after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 5 47.60 -21 53.2 3.098 3.493 105 13.6 19:35 ( 0, 33)
Mar. 2 5 42.14 -21 34.7 3.238 3.537 99 13.7 19:19 ( 5, 33)
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Now it is 13.3 mag (Feb. 9, Chris Wyatt). It stays 13-14 mag until summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 17 32.45 -19 44.8 3.467 3.270 70 13.8 5:13 (325, 27)
Mar. 2 17 32.72 -21 10.0 3.351 3.277 77 13.8 5:05 (330, 28)
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It is not observable now. It will appear in the morning sky in May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 23 33.16 3 31.0 6.671 5.767 22 13.8 19:13 ( 92, 4)
Mar. 2 23 38.34 4 5.6 6.708 5.767 16 13.8 19:19 ( 96, -2)
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Now it is 13.9 mag (Feb. 9, Chris Wyatt). It will be fading after this, and it will be fainter than 18 mag in May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 11 43.44 -6 24.8 0.832 1.775 153 14.3 1:35 ( 0, 48)
Mar. 2 11 39.58 -6 11.0 0.836 1.803 161 14.5 1:04 ( 0, 49)
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Now it is bright as 14.8 mag (Dec. 12, Kunihiro Shima). It stays 14 mag for a long time in 2019. In the Southern Hemisphere, it is observable in excellent condition. In the Northern Hemisphere, it is not observasble until summer in 2020.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 0.03 -58 37.4 2.775 3.264 111 14.4 23:45 ( 0, -4)
Mar. 2 9 37.83 -59 40.3 2.747 3.241 111 14.3 22:56 ( 0, -5)
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Now it is 15.2 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato).It will be fading slowly after this. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it stays extremely low for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 16 4.63 44 27.0 3.633 3.933 100 14.4 5:13 (217, 78)
Mar. 2 16 5.20 45 11.5 3.640 3.983 103 14.5 5:05 (202, 79)
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Now it is 14.5 mag (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). It will be fading slowly after this. It is observable in excellent condition until spring in the Northern Hemispehre. In the Southern Hemisphere, it will be hardly observable after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 4.65 44 22.0 4.066 4.913 145 14.7 23:51 (180, 81)
Mar. 2 9 51.32 44 13.4 4.140 4.951 141 14.7 23:11 (180, 81)
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Now it is 14.2 mag (Feb. 4, ATLAS-MLO, Mauna Loa). It will be fading gradually after this. It is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 9.26 78 8.7 1.710 2.273 111 14.9 0:03 (180, 47)
Mar. 2 9 47.53 75 57.8 1.759 2.307 111 15.0 23:07 (180, 49)
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Now it is 14.5 mag (Aug. 16, P. Camilleri, H. Williams). It stays 15 mag from 2018 to 2019, and it will be observable for a long time in the Southern Hemisphere. In the Northern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 22 9.67 -56 40.2 4.538 3.925 46 14.9 5:13 (319,-35)
Mar. 2 22 23.83 -55 27.1 4.519 3.928 48 14.9 5:05 (318,-34)
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Now it is 14.5 mag (Jan. 27, Toshihiko Ikemura, Hirohisa Sato). It is expected to brighten up to 7-8 mag in 2020. It will be unobservable temporarily in April.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 3 0.54 1 6.3 5.451 5.196 69 15.3 19:13 ( 53, 42)
Mar. 2 3 2.25 1 55.8 5.494 5.133 63 15.3 19:19 ( 61, 38)
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Now it is 14.6 mag (Jan. 21, Sandor Szabo). It stays 15 mag until March. It is observable in excellent condition in the Northern Hemisphere. It is not observable at all in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 3 59.97 66 22.1 3.030 3.300 96 15.6 19:13 (165, 56)
Mar. 2 3 50.15 63 47.5 3.151 3.308 90 15.7 19:19 (156, 55)
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Although it was faint as 16-17 mag in November, it brightened up to 14.7 mag in December (Dec. 12, Toshihiko Ikemura, Hirohisa Sato). It is bright as 15.1 mag still now (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable in excellent condition after this. It stays extremely low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 11 2.88 42 42.5 2.092 2.966 146 15.9 0:55 (180, 82)
Mar. 2 10 56.11 43 8.6 2.135 2.996 144 16.1 0:20 (180, 82)
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First return of a new periodic comet discovered in 2014. The condition of this apparition is excelllent. It was expected to brighten rapidly, and to be observable at 15.5 mag in excellent condition in March. But it has not been recovered yet. Now it is not detected, fainter than 20.0 mag (Dec. 10, Toshihiko Ikemura, Hirohisa Sato).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 19.27 8 53.2 0.821 1.810 178 16.1 0:11 ( 0, 64)
Mar. 2 10 15.00 9 38.2 0.804 1.789 171 16.1 23:35 ( 0, 65)
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It brightened up to 6.8 mag in September (Sept. 17, Seiichi Yoshida). Now it is fading. It has already faded down to 15.3 mag (Jan. 30, Toshihiko Ikemura, Hirohisa Sato). It is observable in excellent condition in the Southern Hemisphere. It locates low after this in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 6 10.83 -19 48.7 1.715 2.268 111 16.1 19:59 ( 0, 35)
Mar. 2 6 15.25 -17 37.0 1.826 2.329 107 16.4 19:36 ( 0, 38)
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It is expected to brighten up to 10 mag in autumn. Now it is 16.7 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable for a long time while the comet is brightening. In the Southern Hemisphere, it it not observable until mid September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 15 3.92 81 5.1 2.550 2.935 102 16.2 4:52 (180, 44)
Mar. 2 15 34.34 84 54.1 2.535 2.864 99 16.1 4:53 (180, 40)
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Now it is 16.8 mag (Jan. 31, Toshihiko Ikemura, Hirohisa Sato). It stays 16-17 mag for a long time until 2020. It is observable in good condition in the Northern Hemisphere. It is not observable at all in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 11 35.41 74 17.9 7.980 8.446 114 16.6 1:27 (180, 51)
Mar. 2 11 28.43 74 20.1 8.010 8.445 112 16.7 0:53 (180, 51)
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Now it is 16.6 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It continues brightening even after the perihelion passage. It stays observable at 16-17 mag in good condition for some more time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 8 7.14 -2 28.2 0.812 1.713 143 16.7 21:55 ( 0, 52)
Mar. 2 8 10.43 -2 15.2 0.859 1.735 139 16.7 21:31 ( 0, 53)
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Now it is 17.4 mag (Jan. 3, Toshihiko Ikemura, Hirohisa Sato). It stays 16 mag for a long time from 2019 to 2020. It is observable in excellent condition in the Southern Hemisphere. It is hardly observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 14 11.51 -47 36.0 3.964 4.301 103 16.8 4:03 ( 0, 7)
Mar. 2 14 6.39 -49 21.6 3.840 4.264 108 16.7 3:30 ( 0, 6)
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It brightened up to 8.7 mag in July (July 18, Marco Goiato). Then it faded down to 12.3 mag in August (Aug. 29, Chris Wyatt). It stays observable in good condition after this while the comet will be fading.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 16 28.24 -13 59.3 3.277 3.361 86 16.8 5:13 (339, 39)
Mar. 2 16 27.65 -12 50.8 3.235 3.441 93 16.9 5:05 (345, 41)
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It brightened up to 14.7 mag in early 2018 (Jan. 25, Catalina Sky Survey). Now it is fading slowly. Now it is 16.7 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it stays observable in good condition for a long time until the comet fades out. It is never observable again in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 4 19.35 70 8.9 6.062 6.296 99 17.1 19:13 (171, 54)
Mar. 2 4 13.55 69 28.9 6.177 6.323 93 17.2 19:19 (165, 53)
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Now it is 16.8 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It is observable at 17 mag in good condition in 2019. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 15 50.88 -16 10.4 3.566 3.779 94 17.2 5:13 (351, 38)
Mar. 2 15 53.85 -16 18.8 3.470 3.786 101 17.1 5:05 (356, 39)
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Now it is 17.2 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). Fading slowly. It stays observable at 17 mag in good condition until summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 11 39.49 7 59.4 9.059 9.999 160 17.2 1:31 ( 0, 63)
Mar. 2 11 38.10 8 19.8 9.039 10.011 167 17.2 1:02 ( 0, 63)
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Now it is 16.9 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). It is expected to be observable at 5-6 mag for a long time from 2022 to 2023. It will be observable in good condition for a long time in the Southern Hemisphere. In the Northern Hemisphere, it is not observable at the highlight from 2022 summer to 2023 summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 18 9.43 53 15.4 12.285 12.203 82 17.3 5:13 (225, 56)
Mar. 2 18 11.16 53 39.7 12.217 12.158 84 17.3 5:05 (223, 58)
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Now it is 17.0 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in May. It locates very low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 7 52.27 21 50.2 1.796 2.648 142 17.3 21:40 ( 0, 77)
Mar. 2 7 51.17 21 25.6 1.878 2.671 134 17.5 21:12 ( 0, 76)
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Now it is 17.0 mag (Feb. 1, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in May. It locates very low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 5 45.44 43 17.7 3.450 3.928 111 17.4 19:34 (180, 82)
Mar. 2 5 47.49 43 3.8 3.557 3.943 105 17.4 19:19 (167, 82)
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Now it is 17.0 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in March. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 54.84 31 12.8 1.914 2.853 157 17.5 0:47 ( 0, 86)
Mar. 2 10 48.13 31 50.8 1.961 2.893 155 17.6 0:12 ( 0, 87)
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Main-belt asteroid. But it shows a straight tail like a comet. Now it is 17.3 mag (Feb. 4, Toshihiko Ikemura, Hirohisa Sato). It stays observable in excellent condition until early summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 27.15 -8 42.2 1.420 2.378 161 17.6 0:19 ( 0, 46)
Mar. 2 10 20.93 -7 4.3 1.395 2.363 163 17.5 23:40 ( 0, 48)
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Now it is 17.6 mag (Jan. 30, Toshihiko Ikemura, Hirohisa Sato). It stays 17 mag from spring to summer. But it is hardly observable. In the Northern Hemisphere, it is observable only until May. In the Southern Hemisphere, it stays locating extremely low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 4 5.38 45 30.5 2.371 2.635 94 17.6 19:13 (131, 72)
Mar. 2 4 15.31 44 42.7 2.405 2.590 89 17.5 19:19 (124, 68)
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Now it is 16.8 mag (Jan. 29, Toshihiko Ikemura, Hirohisa Sato). It will be fading after this, and it will be fainter than 18 mag in March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 4 58.99 26 33.3 1.316 1.810 102 17.5 19:13 ( 34, 80)
Mar. 2 5 11.12 28 16.9 1.394 1.824 98 17.7 19:19 ( 59, 78)
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Now it is 17.7 mag (Feb. 2, Toshihiko Ikemura, Hirohisa Sato). In the Northern Hemisphere, it is observable at 17.5 mag in good condition in February. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 5 43.00 54 0.1 1.004 1.632 109 17.6 19:30 (180, 72)
Mar. 2 5 16.80 44 20.6 1.113 1.615 100 17.8 19:19 (141, 78)
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It was observed at 16 mag from 2017 to 2018. Now it is fading. It is observable at 18 mag in good condition in this spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 16 7.27 5 0.1 7.205 7.352 94 18.0 5:13 (338, 58)
Mar. 2 16 8.06 5 48.2 7.128 7.380 100 17.9 5:05 (347, 60)
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