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Now it is 4.2 mag (Feb. 19, Andrew Pearce). Although it had been brightening as expected until late December, the brightening has got slow down in January. It was expected to be a great comet of -1 mag in spring, however, it may brightens only up to 3 mag at best. It locates extremely low in the Southern Hemisphere. In the Northern Hemisphere, it will appear in the extremely low evening sky in mid March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 22 29.60 -36 59.3 1.173 0.537 27 4.2 20:13 ( 45, 2)
Mar. 2 23 33.62 -25 15.8 1.105 0.391 20 3.3 20:03 ( 61, 1)
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Brightened much faster than expected. Now it is so bright as 5.0 mag (Feb. 21, Willian Souza. It has a long ion tail. However, the brightness evolution has been slow down in February. It will approach to the sun down to 0.73 A.U. on Mar. 24. It is expected to brighten up to 3 mag, but maybe it will be fainter than predicted. It is observable in good condition in the Southern Hemisphere. It is not observable now in the Northern Hemisphere. But it becomes observable again in May, and it keeps observable in good condition after that while fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 23 58.95 -59 48.8 1.094 0.933 52 4.2 20:13 ( 35, 26)
Mar. 2 0 5.05 -50 4.1 1.180 0.857 45 3.6 20:03 ( 43, 20)
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Got brighter than expected after the outburst on Jan. 24. It brightened up to 9.2 mag on Feb. 4 (Michael Mattiazzo). However, it suddenly faded down to 10.5 mag and got diffuse on Feb. 5 (Michael Mattiazzo). It approached to the Sun down to 0.3 A.U. on Feb. 24. In the Northern Hemisphere, it will appear in the morning sky in mid March. However, because the comet is small, it could have been disintegrated. In the Southern Hemisphere, it locates extremely low in early March. But it will be unobservable after that.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 22 0.46 -28 7.9 0.916 0.324 19 7.4 4:12 (307, -2)
Mar. 2 21 28.24 -15 11.1 0.925 0.368 21 8.0 4:20 (287, 3)
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It brightened up to 9.0 mag in 2012 autumn (Nov. 4, Juan Jose Gonzalez). Appearing in the morning sky in the Southern Hemisphere. It keeps observable in good condition while fading slowly after this. However, Michael Mattiazzo reported that it was fainter than 12 mag on Feb. 2, much fainter than predicted. In the Northern Hemisphere, it is hardly observable after 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 20 57.73 -40 2.9 2.623 1.911 35 9.2 4:12 (308, 16)
Mar. 2 21 22.13 -40 59.0 2.605 1.939 39 9.2 4:20 (308, 18)
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Long-lost comet for almost 200 years since 1827. Finally re-discovered by Rob Matson from SWAN images of mid November. Now it is 10.8 mag (Feb. 15, Seiichi Yoshida). In the Northern Hemisphere, it keeps observable in excellent condition while fading after this. In the Southern Hemisphere, it is only observable in low sky from February to March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 18 4.34 19 55.1 1.385 1.411 70 10.7 4:12 (233, 14)
Mar. 2 17 49.67 25 58.7 1.311 1.504 80 11.0 4:20 (220, 17)
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Now it is so bright as 11.5 mag (Feb. 6, Salvador Aguirre). It keeps bright as 12 mag until spring. In the Northern Hemisphere, it keeps observable in good condition until April. It is not observable now in the Southern Hemisphere. It will become observable after April, but it keeps locating low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 2 30.63 38 40.6 1.818 1.830 74 12.4 20:13 (138, -1)
Mar. 2 2 47.58 35 9.7 1.856 1.778 69 12.3 20:03 (135, 1)
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Now it is bright as 11.8 mag (Feb. 7, Alexandre Amorim). It is expected to be observable at 11-13 mag for a long time from 2012 summer to 2013 summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 16 9.14 -21 10.5 2.351 2.552 90 12.4 4:12 (247, 63)
Mar. 2 16 4.25 -18 44.0 2.257 2.599 98 12.4 4:20 (226, 68)
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It brightened up to 11-12 mag in 2012. Now it is 13.3 mag (Feb. 2, Jakub Cerny). It will be observable at 12-13 mag in good condition again in 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 15 22.98 -17 19.4 5.366 5.647 101 13.0 4:12 (221, 68)
Mar. 2 15 18.45 -17 11.6 5.259 5.669 109 12.9 4:20 (195, 72)
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It brightened rapidly, and reached up to 12 mag in 2012. Appearing in the mornig sky again. It will be observable at 12-14 mag in good condition again in 2013. However, it locates somewhat low in the Northern Hemisphere in 2013. By the way, Juan Jose Gonzalez reported it is extremely bright as 9.6 mag on Jan. 20.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 18 32.29 -23 42.2 3.300 2.883 56 13.6 4:12 (276, 35)
Mar. 2 18 42.89 -23 57.1 3.222 2.885 61 13.5 4:20 (273, 41)
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It approached to the earth down to 0.3 A.U. and brightened up to 7-8 mag from late December to early January. However, it will go away from the earth and fade out rapidly after this. It has already faded down to 12.2 mag (Feb. 10, Uwe Pilz). It is observable in good condition also in the Southern Hemisphere after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 4 8.52 -15 40.5 1.561 1.750 83 13.6 20:13 (113, 54)
Mar. 2 4 12.55 -16 20.9 1.741 1.827 78 14.1 20:03 (109, 51)
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Now it is 13.3 mag (Nov. 15, Sandor Szabo). It keeps bright at 13-14 mag for a long time until 2014. It keeps observable for a long time in the Northern Hemisphere. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 21 9.18 29 30.8 6.611 5.931 43 13.7 4:12 (250,-25)
Mar. 2 21 11.66 29 32.1 6.600 5.927 43 13.7 4:20 (247,-19)
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Carlos Labordena reported it is extremely bright as 11.4 mag on Feb. 6. However, it is extremely diffuse.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 14 11.99 -23 51.2 5.745 6.229 115 13.8 4:01 (180, 79)
Mar. 2 14 11.27 -23 59.9 5.645 6.228 122 13.7 3:33 (180, 79)
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It kept as bright as 6-7 mag for a long time from 2011 summer to 2012 spring. Now it is fading. But it is bright as 15.2 mag still now (Feb. 2, Jakub Cerny).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 8 37.39 -10 29.3 4.285 5.138 146 13.8 22:23 (180, 66)
Mar. 2 8 31.01 -10 10.7 4.393 5.200 140 13.9 21:49 (180, 65)
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Now it is 13.6 mag (Feb. 17, Todd Augustyniak). It is fainter than originally predicted by 1 mag. It will brighten up to 14 mag until spring. In the Northern Hemisphere, it keeps observable in excellent condition. In the Southern Hemisphere, it keeps locating extremely low for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 9 59.99 33 35.8 1.061 2.005 155 14.2 23:45 (180, 22)
Mar. 2 9 53.01 32 5.5 1.061 1.990 151 14.1 23:11 (180, 23)
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It is expected to keep 13 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. Now it is 14.5 mag (Feb. 9, Yasukazu Ikari). It will be observable also in the Southern Hemisphere from early December to early March, although it locates low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 10 40.82 41 54.6 3.546 4.415 147 14.2 0:31 (180, 13)
Mar. 2 10 29.48 43 42.9 3.543 4.378 143 14.2 23:47 (180, 11)
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Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. Now it is 11.9 mag (May 29, Marco Goiato). It has already turned to be stellar. It is not observable now.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 21 53.99 -23 27.1 3.654 2.713 15 14.3 4:12 (302, -4)
Mar. 2 22 6.52 -22 33.8 3.645 2.724 18 14.4 4:20 (298, 0)
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Now it is 14.7 mag (Feb. 3, Jakub Cerny). It will be fading slowly after this. But it keeps 15 mag in 2013. It is observable in good condition in the Southern Hemisphere. It becomes observable in the extremely low sky from January to February in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 2 58.27 -38 40.9 6.571 6.250 66 14.5 20:13 ( 69, 49)
Mar. 2 3 0.26 -37 16.0 6.652 6.275 63 14.6 20:03 ( 70, 45)
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Now it is bright and visible visually at 12.9 mag (Jan. 3, Chris Wyatt). It keeps 12-14 mag until February. It keeps observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it locates extremely low, and will be unobservable soon.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 1 38.62 17 27.8 3.710 3.247 55 14.7 20:13 (115, 4)
Mar. 2 1 49.14 17 27.5 3.804 3.263 50 14.8 20:03 (114, 3)
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First return of a new periodic comet discovered in 1994. It brightened rapidly and reached up to 10.6 mag (Dec. 13, Katsumi Yoshimoto). Now it is fading, but it is bright as 11.5 mag still now (Feb. 10, Uwe Pilz). It has a large diffuse coma. It keeps locating high for a while, but it will be fading after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 3 29.44 -5 16.7 1.615 1.669 75 14.9 20:13 (116, 40)
Mar. 2 3 48.57 -4 33.4 1.715 1.726 73 15.4 20:03 (117, 40)
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Now it is 15.0 mag (Feb. 2, Uwe Pilz). Already visible visually. It is expected to be a great comet in 2013 autumn when the comet approaches to the sun down to only 0.01 A.U. It keeps visible with naked eyes from November to January, and can be extremely bright as Venus or more at the highlight. The condition is excellent in the Northern Hemisphere. It keeps observable almost all through the period of brightening, at the highlight, and of fading. The condition is not good in the Southern Hemisphere. It is not observable at all the latter part of the highlight, and it keeps low all through the period.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 6 55.68 31 39.9 4.020 4.684 127 15.2 20:42 (180, 23)
Mar. 2 6 50.22 31 31.5 4.041 4.605 119 15.2 20:09 (180, 24)
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Now it is 16.3 mag (Feb. 10, Hiroshi Abe). It keeps bright as 13-14 mag for a long time from 2013 to 2014.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 14 50.53 -11 1.5 3.101 3.573 110 15.4 4:12 (196, 65)
Mar. 2 14 51.91 -11 7.8 2.992 3.558 117 15.3 4:13 (180, 66)
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Now it is visible visually at 13.7 mag (Dec. 23, Juan Jose Gonzalez). It keeps 15 mag until March. In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere, except for 2013 spring, but the comet locates extremely low only.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 3 56.73 38 36.2 2.132 2.362 90 15.4 20:13 (151, 9)
Mar. 2 4 4.29 35 12.1 2.263 2.386 84 15.5 20:03 (148, 11)
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Now it is 15.6 mag (Jan. 23, W. Hasubick). It will brighten up to 12 mag from summer to autumn in 2013. In the Northern Hemisphere, it is observable only until spring when the comet brightens up to 15 mag. In the Southern Hemisphere, it keeps unobservable until August. Then it keeps observable while fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 0 44.95 48 39.1 2.972 2.727 66 15.7 20:13 (134,-23)
Mar. 2 1 2.06 47 32.4 2.975 2.657 61 15.6 20:03 (133,-22)
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Now it is 15.8 mag, brighter than expected (Feb. 4, Hidetaka Sato). It reaches up to 15 mag from spring to summer. It is observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 16 45.97 -49 29.5 3.500 3.452 79 15.8 4:12 (310, 60)
Mar. 2 16 40.44 -49 31.9 3.357 3.437 86 15.7 4:20 (316, 66)
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Now it is 17.5 mag (Jan. 17, Hidetaka Sato). It keeps observable at 16 mag in the morning sky from February to April.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 18 31.37 -14 51.7 1.818 1.527 57 16.0 4:12 (267, 31)
Mar. 2 18 52.76 -14 20.8 1.787 1.531 58 15.9 4:20 (264, 34)
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It brightened much faster than expected, and reached up to 10.0 mag in summer (Aug. 9, Juan Jose Gonzalez). Now it is fading, but it is bright as 13.3 ma still now (Feb. 2, Hidetaka Sato). It keeps observable in good condition for a while after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 6 46.71 6 6.0 2.557 3.238 125 16.0 20:32 (180, 49)
Mar. 2 6 40.79 5 17.1 2.712 3.293 117 16.3 20:03 (179, 50)
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Now it is 16.1 mag (Jan. 16, Jakub Cerny). In the Southern Hemisphere, it will be observable at 15-16 mag in good condition for a long time until summer. It is not observable at all in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 1 40.35 -63 5.7 4.566 4.218 63 16.0 20:13 ( 34, 39)
Mar. 2 1 55.42 -61 20.6 4.585 4.242 63 16.1 20:03 ( 36, 39)
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Now it is 16.4 mag (Jan. 6, J. F. Hernandez). It is expected to brighten up to 5-6 mag in 2014 autumn. In 2013, it keeps observable in good condition until autumn when it brigthens up to 13-14 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 17 32.68 10 48.5 6.679 6.502 75 16.3 4:12 (234, 26)
Mar. 2 17 33.37 11 26.7 6.517 6.441 81 16.2 4:20 (226, 31)
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Now it is 14.8 mag (Jan. 9, A. Novichonok). It keeps 15-16 mag until February. It keeps observable in good condition for a long time until the comet fades out in the Northern Hemisphere. It is not observable until 2013 summer in the Southern Hemisphere. By the way, Juan Jose Gonzalez reported it extremely bright as 10.4 mag visually on Nov. 6.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 0 53.11 48 18.2 3.952 3.676 66 16.3 20:13 (135,-21)
Mar. 2 0 59.47 46 50.5 4.069 3.694 61 16.4 20:03 (132,-22)
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New bright comet discovered at 15 mag in late December. Now it is 15.8 mag (Feb. 4, Hidetaka Sato). It must have been bright as 13-14 mag and observable in good condition from spring to autumn in the Southern Hemisphere. But it was not discovered. It will be fainter than 18 mag in April, and keeps observable in good condition. It will be observable also in the Northern Hemisphere after this in the evening sky while fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 5 17.70 -30 2.5 2.500 2.787 96 16.4 20:13 (105, 75)
Mar. 2 5 21.63 -26 33.3 2.609 2.846 93 16.6 20:03 (111, 70)
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Now it is 16.4 mag (Jan. 18, Yasukazu Ikari). It will be observable at 17 mag for a long time from 2013 to 2014.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 12 18.89 5 0.9 3.020 3.917 151 16.6 2:08 (180, 50)
Mar. 2 12 16.10 5 16.4 2.968 3.909 158 16.6 1:38 (180, 50)
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Now it is 17.4 mag (Jan. 5, K. Hills). It keeps observable in good condition at 17 mag from January to June. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 9 0.19 20 45.8 1.127 2.074 156 16.9 22:46 (180, 34)
Mar. 2 8 56.81 21 25.1 1.142 2.056 148 16.9 22:15 (180, 34)
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It is expected to brighten up to 11 mag and become observable in excellent condition in 2014 spring. Now it is 17.9 mag (Jan. 3, Toshiyuki Takahashi). In the Northern Hemisphere, it keeps observable in good condition until early summer. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 8 54.74 39 22.1 3.675 4.516 144 17.4 22:40 (180, 16)
Mar. 2 8 49.21 39 55.0 3.671 4.452 137 17.3 22:07 (180, 15)
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Now it is 17.8 mag (Jan. 11, P. Dupouy, et al.). It brightened up to 16.5 mag in 2012. It will be observable in good condition again at 17.5 mag in 2013 spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 14 0.41 4 12.4 5.336 5.975 126 17.4 3:49 (180, 51)
Mar. 2 13 54.54 4 49.2 5.257 5.992 134 17.4 3:16 (180, 50)
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Not observed yet in this apparition. But it must have already brightened up to 18 mag. It will brighten up to 14 mag and will be observable in excellent condition in summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 14 55.99 -2 12.4 1.715 2.272 111 17.8 4:12 (195, 56)
Mar. 2 15 2.90 -1 56.0 1.605 2.232 116 17.5 4:20 (182, 57)
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It was identified with an old comet discovered in 1931 by Tombaugh. It was unusually bright as 12.5 mag in 1931. Now it is 16.9 mag (Jan. 19, Y. Sugiyama). It keeps 17.5 mag until March, and keeps 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 6 42.89 36 45.0 1.754 2.442 123 17.6 20:29 (180, 18)
Mar. 2 6 45.97 36 47.5 1.825 2.442 117 17.7 20:05 (180, 18)
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Now it is 17.7 mag (Jan. 11, V. Gerke, S. Plaksa, A. Novichonok). It reached up to 17 mag in last winter between 2011 and 2012. It will be observable in good condition again at 17.5 mag in this winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 9 13.68 17 46.6 3.249 4.197 161 17.8 22:59 (180, 37)
Mar. 2 9 10.10 17 58.9 3.298 4.206 153 17.8 22:28 (180, 37)
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Peculiar asteroid moving along a cometary orbit. Now it is 17.3 mag (Dec. 6, E. Cozzi). It keeps observable at 18 mag for a long time from 2008 to 2014. It locates extremely low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 23 6 55.62 42 41.5 6.626 7.226 124 17.9 20:42 (180, 12)
Mar. 2 6 51.92 42 52.6 6.737 7.239 116 18.0 20:11 (180, 12)
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