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It brightened up to 3.7 mag and became a naked eye comet in mid January (Jan. 13, Marek Biely). It is bright as 5.4 mag still now (Feb. 19, Uwe Pilz). It keeps brightening even after the perihelion passage. However, it will be getting fainter gradually after this. In the Northern Hemisphere, it keeps observable in good condition after this until the comet fades out. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 1 39.38 51 31.7 1.158 1.332 76 5.6 19:11 (131, 48)
Feb. 28 1 32.59 54 25.1 1.287 1.362 72 5.9 19:17 (135, 42)
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Now it is bright as 12.7 mag (Jan. 24, Chris Wyatt). It will brighten up to 8-9 mag in 2015 spring. In the Southern Hemisphere, it will be getting higher gradually after this. In the Northern Hemisphere, it keeps extremely low and hard to observe until June. It will be observable in good condition after June while the comet will be fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 19 18.28 -23 28.2 1.981 1.443 43 10.0 5:15 (306, 8)
Feb. 28 19 44.43 -22 47.4 1.936 1.419 44 9.7 5:07 (305, 8)
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It brightened very rapidly in outburst up to 8.8 mag in mid December (Dec. 19, Marco Goiato). Then it faded down to 10.7 mag (Jan. 14, Chris Wyatt). However, it brightened in outburst again on Jan. 16, and brightened up to 7.0 mag (Jan. 17, Maik Meyer). Now it is 11.1 mag and diffuse (Feb. 15, Jakub Cerny). In the Northern Hemisphere, it will be geting higher gradually. In the Southern Hemisphere, it keeps locating extremely low after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 1 25.50 13 28.0 1.576 1.261 53 11.5 19:11 ( 82, 35)
Feb. 28 1 52.96 16 23.0 1.648 1.321 53 12.1 19:17 ( 86, 35)
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The brightness evolution has slowed down before the perihelion passage, and it faded down to 11.6 mag in late October (Oct. 26, Todd Augustyniak). However, an outburst occured around Nov. 10-12, and it brightened by 2 mag. It is bright as 11.7 mag still now (Feb. 16, Jakub Cerny). In the Northern Hemisphere, it will be observable in excellent condition after this while the comet will be fading. It is observable in the morning low sky until early April also in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 18 2.64 21 43.3 2.291 2.162 69 11.6 5:15 (279, 51)
Feb. 28 17 58.99 25 34.2 2.243 2.231 76 11.7 5:07 (277, 58)
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Now it is 16.0 mag (Dec. 22, Ken-ichi Kadota). It will brighten very rapidly, and will brighten up to 11 mag from January to February. In the Southern Hemisphere, it will be observable in the morning sky after February while the comet will be fading. It is hardly observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 20 32.42 -21 39.7 2.067 1.267 26 12.2 5:15 (294, -4)
Feb. 28 20 59.27 -21 25.0 2.075 1.288 28 12.6 5:07 (293, -5)
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It brightened up to 6.9 mag in autumn (Oct. 17, Marco Goiato). Now it is fading. But it is bright as 12.6 mag still now (Feb. 9, Chris Wyatt). In the Southern Hemisphere, it is getting lower and it will be unobservable temporarily in March. But it will be observable in good condition again after April. It will be observable again in mid June also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 0 18.09 -22 19.8 3.591 2.796 31 12.3 19:11 ( 63, -1)
Feb. 28 0 21.34 -21 21.7 3.720 2.876 27 12.5 19:17 ( 68, -6)
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It brightened up to 13.6 mag until the end of 2014, brighter than originally expected (Dec. 19, Chris Wyatt). It is expected to brighten up to 4 mag from autumn to winter in 2015. Now it is not observable. In the Southern Hemisphere, it will be observable in good condition again after late March. In the Northern Hemisphere, it is hardly observable until 2015 December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 22 47.13 -22 37.8 4.865 3.913 14 12.9 19:11 ( 75,-18)
Feb. 28 22 51.46 -22 22.2 4.789 3.837 14 12.7 19:17 ( 79,-24)
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Now it is 15.1 mag (Feb. 1, Taras Prystavski). It will brighten up to 10.5 mag in 2015 spring. But the condition of this apparition is bad. It is already unobservable in the Northern Hemisphere. It will be unobservable in mid March also in the Southern Hemisphere. In the Northern Hemisphere, it will be observable after 2015 autumn while the comet will be fading.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 0 5.78 -20 16.3 2.542 1.735 28 13.5 19:11 ( 66, -1)
Feb. 28 0 22.33 -17 36.1 2.521 1.689 26 13.2 19:17 ( 71, -3)
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It brightened up to 10.6 mag from autumn to winter (Nov. 29, Seiichi Yoshida). Now it is 12.8 mag (Jan. 24, Chris Wyatt). It will be fading graudually after this. But it keeps observable for a long time until the comet fades out.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 17 3.61 -14 11.2 1.880 1.897 75 13.5 5:15 (328, 35)
Feb. 28 17 13.72 -14 21.5 1.871 1.964 80 13.7 5:07 (331, 36)
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It will brighten up to 11 mag in spring. But the condition is bad in this apparition. In the Southern Hemisphere, it will become observable in the morning extremely low sky after late April. It will not be observable until late July in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 21 24.30 -13 19.1 2.313 1.366 12 14.1 5:15 (280, -9)
Feb. 28 21 48.96 -12 24.4 2.304 1.362 13 13.7 5:07 (278,-10)
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Now it is 14.5 mag (Jan. 20, Taras Prystavski). In 2015, it keeps 13 mag and will be observable in good condition for a long time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 18 13.61 -13 16.2 3.886 3.481 59 13.9 5:15 (311, 26)
Feb. 28 18 22.79 -13 0.4 3.798 3.474 63 13.8 5:07 (313, 28)
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Outburst occured on Feb. 3, and it is bright as 13.8 mag (Richard Miles). It is getting higher gradually in the morning sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 17 41.53 -30 40.7 6.401 6.067 66 13.9 5:15 (328, 16)
Feb. 28 17 45.44 -30 47.0 6.295 6.065 72 13.9 5:07 (331, 18)
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Now it is 13.4 mag (Feb. 15, Jakub Cerny). It is fainter than originally predicted by 2 mag. In the Northern Hemisphere, it keeps observable at 14 mag in excellent condition from 2014 summer to 2015 spring. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 11 45.34 19 43.7 1.352 2.294 156 14.0 1:45 ( 0, 75)
Feb. 28 11 40.35 20 10.0 1.363 2.323 161 14.1 1:12 ( 0, 75)
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It will approach to the sun down to 0.3 a.u. in 2015 July, and it is expected to be bright. Now it is 15.6 mag (Jan. 13, Yasukazu Ikari). Hard to observe for a while after this. In the Southern Hemisphere, it will be observable after mid July in 2015, and keeps observable while the comet will be fading gradually. It will not be observable after this in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 23 31.70 -13 38.2 3.540 2.624 18 14.4 19:11 ( 77, -4)
Feb. 28 23 39.16 -12 12.9 3.471 2.525 14 14.2 19:17 ( 81, -9)
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It brightened up to 2 mag by unusual major outburst in 2007. It brightened up to 12.6 mag in this apparition (June 25, Taras Prystavski). It faded down to 17-18 mag, but it suddenly brightened in outburst on Jan. 26, and brightened up to 13.2 mag (Jan. 29, Uwe Pilz). Now it is 14.7 mag (Feb. 7, Sandor Szabo). In the Northern Hemisphere, it keeps observable in good condition. In the Southern Hemisphere, it keeps extremely low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 4 21.29 39 46.9 2.805 3.102 98 14.6 19:11 (118, 78)
Feb. 28 4 28.04 39 8.9 2.927 3.132 92 15.0 19:17 (110, 74)
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It brightened up to 11-12 mag in 2012. It has already faded down to 15.5 mag (Jan. 17, Taras Prystavski). It keeps observable at 15 mag in good condition until 2015 summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 11 43.86 -9 30.7 8.155 9.025 150 15.1 1:43 ( 0, 45)
Feb. 28 11 39.66 -9 11.0 8.140 9.062 157 15.1 1:11 ( 0, 46)
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Now it is 17.4 mag (Jan. 18, Catalina Sky Survey). It is expected to brighten rapidly and will be observable in good condition at 13 mag from March to May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 14 49.58 -15 43.4 0.728 1.390 107 15.7 4:48 ( 0, 39)
Feb. 28 15 17.33 -17 6.2 0.664 1.347 107 15.2 4:48 ( 0, 38)
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Now it is 14.5 mag (Dec. 24, Taras Prystavski). It keeps 15 mag for a long time from 2014 to 2015. It is observable in excellent condition in 2014 in the Southern Hemisphere, or in 2015 in the Northern Hemisphere. It becomes unobservable temporarily from March to May.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 0 36.09 -4 11.3 4.649 3.886 35 15.2 19:11 ( 75, 14)
Feb. 28 0 40.99 -2 33.3 4.708 3.884 30 15.3 19:17 ( 80, 9)
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Now it is 15.3 mag (Jan. 17, Taras Prystavski). The brightness evolution is somewhat slow. It keeps 15-16 mag for a long time from 2014 autumn to 2015 autumn. In the Southern Hemisphere, it keeps observable in excellent condition for a long time. In the Northern Hemisphere, it is unobservable until 2015 June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 0 53.62 -46 25.1 2.511 2.004 48 15.3 19:11 ( 40,-10)
Feb. 28 0 52.40 -43 12.0 2.575 2.003 45 15.3 19:17 ( 46,-13)
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Now it is 14.6 mag (Jan. 21, Catalina Sky Survey). It keeps observable in good condition after this in the Northern Hemisphere, but it will be fading gradually. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 2 48.00 22 39.7 1.296 1.407 74 15.3 19:11 ( 79, 56)
Feb. 28 3 13.27 24 36.0 1.350 1.434 73 15.5 19:17 ( 83, 55)
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Now it is 15.5 mag (Jan. 16, Taras Prystavski). It will brighten up to 14 mag from 2015 to 2016. It is observable in good 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)
Feb. 21 2 49.17 -11 32.9 4.786 4.493 66 15.4 19:11 ( 44, 32)
Feb. 28 2 48.08 -10 12.4 4.873 4.472 60 15.4 19:17 ( 52, 28)
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Now it is bright as 13.8 mag (Feb. 15, Jakub Cerny). It keeps 14-15 mag until February, and it will be observable in excellent condition in the Northern Hemisphere. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 6 20.42 21 33.1 1.828 2.507 122 15.5 20:17 ( 0, 77)
Feb. 28 6 23.01 21 4.7 1.911 2.514 116 15.6 19:52 ( 0, 76)
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Brightening very rapidly. Now it is so bright as 14.5 mag and visible visually (Feb. 7, Mike Wolle). It keeps observable at 15 mag in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 8 54.85 10 25.0 2.588 3.534 160 15.5 22:50 ( 0, 65)
Feb. 28 8 51.49 10 22.0 2.612 3.522 152 15.5 22:19 ( 0, 65)
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Now it is 15.6 mag (Jan. 19, Catalina Sky Survey). It will brighten up to 11 mag in 2015 autumn. In this apparition, it is observable until the highlight while the comet is brightening.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 13 14.29 -1 31.9 1.924 2.704 133 15.8 3:13 ( 0, 53)
Feb. 28 13 13.53 -1 5.9 1.818 2.663 141 15.5 2:45 ( 0, 54)
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Now it is 14.5 mag (Nov. 19, Taras Prystavski). It will be observable at 15-16 mag in good condition again in 2015.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 18 57.51 -16 43.4 8.014 7.393 48 15.6 5:15 (305, 16)
Feb. 28 18 58.85 -16 56.6 7.946 7.421 54 15.6 5:07 (308, 19)
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Now it is 15.3 mag (Jan. 24, Taras Prystavski). In the Northern Hemisphere, it keeps 15-16 mag and observable in excellent condition for a long time until early summer in 2015. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 13 34.01 34 24.2 3.000 3.703 129 15.6 3:33 ( 0, 89)
Feb. 28 13 31.34 34 38.8 2.977 3.724 133 15.6 3:03 ( 0, 90)
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Now it is 16.6 mag (Jan. 29, Catalina Sky Survey). It will pass the perihelion on Mar. 15. In the Northern Hemispehre, it keeps observable in good condition until late February. In the Southern Hemisphere, it keeps observable until mid February, but it locates low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 0 58.45 3 32.7 0.866 0.690 43 15.9 19:11 ( 78, 23)
Feb. 28 0 46.89 0 25.0 0.832 0.530 32 15.7 19:17 ( 82, 12)
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Now it is 15.7 mag (Jan. 17, Taras Prystavski). It keeps observable in good condition after this, but it will be fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 12 19.66 7 7.9 1.329 2.236 149 15.9 2:19 ( 0, 62)
Feb. 28 12 16.61 7 58.3 1.317 2.260 156 16.0 1:48 ( 0, 63)
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Now it is 15.7 mag (Jan. 16, Taras Prystavski). It will pass close to the earth from spring to summer in 2016, and it is expected to be observable at 6-7 mag in good condition. In the Northern Hemispehre, it keeps observable in good condition until 2015 spring when the comet will brighten up to 15.5 mag. In the Southern Hemisphere, it keeps low for a long time until 2016 spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 4 56.08 35 14.4 4.885 5.221 104 16.1 19:11 ( 95, 86)
Feb. 28 4 52.07 34 55.4 4.944 5.156 96 16.1 19:17 ( 94, 78)
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Now it is 15.8 mag (Jan. 11, Y. Sugiyama). It keeps observable at 15-16 mag for a long time from 2015 to 2016. In the Northern Hemisphere, it is observable in excellent condition. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 2 56.82 30 26.9 5.564 5.464 79 16.1 19:11 ( 91, 61)
Feb. 28 2 58.57 30 59.0 5.658 5.447 72 16.1 19:17 ( 96, 54)
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Now it is 17.5 mag (Jan. 11, F. Garcia). It will brighten up to 13 mag in 2016. In the Northern Hemisphere, it will be observable in excellent condition in this winter. It locates somewhat low in the Southern Hemisphere. It is fainter than this ephemeris recently.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 5 41.22 27 43.5 2.484 3.023 113 16.3 19:38 ( 0, 83)
Feb. 28 5 42.64 27 35.8 2.551 2.997 107 16.3 19:17 ( 10, 82)
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Now it is 14.7 mag (Jan. 20, Taras Prystavski). It keeps observable for a long time after this while the comet will be fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 9 22.16 3 45.8 1.929 2.896 165 16.3 23:17 ( 0, 59)
Feb. 28 9 17.21 4 34.1 1.993 2.938 158 16.5 22:45 ( 0, 60)
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It brightened up to 6.5 mag in September (Sept. 21, Marco Goiato). Now it is fading. It has already faded down to 15.6 mag (Jan. 20, Taras Prystavski). It keeps observable in good condition after this, while the comet will be fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 15 36.93 10 23.8 2.181 2.565 101 16.4 5:15 (348, 65)
Feb. 28 15 26.95 12 58.2 2.149 2.656 109 16.5 4:58 ( 0, 68)
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Now it is 15.4 mag (Jan 17, Mt. Lemmon Survey). It keeps 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)
Feb. 21 7 55.84 13 36.8 3.261 4.117 145 16.4 21:52 ( 0, 69)
Feb. 28 7 54.00 13 45.7 3.328 4.123 138 16.5 21:22 ( 0, 69)
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Now it is 15.8 mag (Jan. 2, Ken-ichi Kadota). It will be observable at 16-17 mag in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 17 1.53 -11 9.4 2.049 2.061 76 16.8 5:15 (327, 38)
Feb. 28 17 12.93 -11 1.9 2.008 2.093 80 16.8 5:07 (329, 39)
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Now it is 16.4 mag (Jan. 20, Taras Prystavski). It keeps 17-18 mag for a long time from 2014 to 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 12 40.06 -24 4.5 4.651 5.345 130 16.8 2:39 ( 0, 31)
Feb. 28 12 31.11 -24 2.7 4.569 5.348 138 16.8 2:03 ( 0, 31)
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It brightened up to 15.4 mag in autumn (Nov. 19, Taras Prystavski). But it was extremely diffuse. It was reported so faint as 20 mag after December. It keeps observable in excellent condition in the Southern Hemisphere. But it locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 8 35.02 -39 14.1 1.664 2.371 124 16.9 22:30 ( 0, 16)
Feb. 28 8 29.08 -39 7.1 1.734 2.425 123 17.0 21:57 ( 0, 16)
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Now it is 16.8 mag (Jan. 23, Catalina Sky Survey). It keeps 13 mag for a long time from 2015 to 2016, and will be observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is observable only until mid 2015 March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 3 40.05 23 22.5 4.591 4.634 86 17.0 19:11 ( 67, 66)
Feb. 28 3 39.94 24 1.3 4.659 4.583 79 17.0 19:17 ( 77, 60)
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Now it is 18.0 mag (Jan. 23, K. Hills). It keeps observable at 17 mag from winter to spring. It is observable in excellent condition in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 11 24.67 -24 7.0 2.280 3.113 141 17.2 1:24 ( 0, 31)
Feb. 28 11 15.58 -25 47.6 2.245 3.109 144 17.2 0:48 ( 0, 29)
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Now it is 17.7 mag (Jan. 20, Taras Prystavski). It was observed at 17 mag in 2014 summer. In the Northern Hemisphere, it is observable at 17.5 mag in excellent condition also in 2015. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 20 7.91 34 59.8 4.432 3.946 54 17.2 5:15 (247, 32)
Feb. 28 20 19.39 35 58.4 4.436 3.960 55 17.2 5:07 (247, 34)
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Now it is 17.5 mag (Dec. 1, Alexander Baransky). It keeps observable at 17-18 mag for a long time from 2013 to 2016. It keeps locating high in the Northern Hemisphere. It keeps locating very low in the Southern Hemipshere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 17 26.87 52 9.7 6.546 6.584 87 17.3 5:15 (223, 61)
Feb. 28 17 26.00 53 30.5 6.515 6.593 90 17.3 5:07 (218, 63)
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Now it is 19.2 mag (Feb. 21, Jean-Francois Soulier). It is expected to brighten up to 15 mag in summer, and will be observable in excellent condition. But it is fainter than this ephemeris.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 18 53.05 -20 44.0 2.403 1.914 49 17.5 5:15 (309, 14)
Feb. 28 19 11.71 -20 11.0 2.327 1.888 52 17.3 5:07 (308, 15)
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Now it is 17.8 mag (Jan. 6, B. Lutkenhoner). It was observed around 17-18 mag in early 2014. It will be observable around 17-18 mag again from 2014 autumn to 2015 spring, in excellent condition 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. 21 10 21.71 56 57.4 4.460 5.194 133 17.4 0:22 (180, 68)
Feb. 28 10 15.37 56 33.0 4.495 5.204 131 17.4 23:43 (180, 69)
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Now it is 17.6 mag (Jan. 22, A. Maury, J.-F. Soulier, J.-G. Bosch, T. Noel). It keeps observable at 17 mag from spring to summer. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 16 44.00 -28 32.3 3.182 3.140 78 17.5 5:15 (339, 23)
Feb. 28 16 51.61 -28 43.7 3.086 3.140 83 17.4 5:07 (342, 24)
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First return of a peculiar asteroid 1998 HO121. It keeps observable at 17-18 mag from 2015 to 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 6 52.26 8 56.5 2.423 3.152 130 17.5 20:48 ( 0, 64)
Feb. 28 6 52.55 9 30.8 2.480 3.136 123 17.6 20:21 ( 0, 65)
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Now it is 17.6 mag (Jan. 21, Catalina Sky Survey). Now it is around the aphelion. In the Northern Hemisphere, it is observable at 18 mag in good condition from winter to spring. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 8 42.79 29 11.1 3.690 4.585 151 17.6 22:38 ( 0, 84)
Feb. 28 8 38.76 29 19.1 3.734 4.575 144 17.6 22:07 ( 0, 84)
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Now it is 16.2 mag (Jan. 20, Taras Prystavski). It is observable at 17 mag until spring. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 15 13.82 -15 28.8 1.068 1.595 101 17.7 5:12 ( 0, 40)
Feb. 28 15 28.27 -17 39.9 1.031 1.601 104 17.6 4:59 ( 0, 37)
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Now it is 17.2 mag (Jan. 10, Toshiyuki Takahashi). It was observed at 17 mag from 2013 to early 2014. It will be observable at 17.5 mag in good condition again from autumn to winter in 2014.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 8 0.84 14 8.7 2.581 3.452 147 17.6 21:56 ( 0, 69)
Feb. 28 7 58.39 14 21.5 2.655 3.468 139 17.7 21:27 ( 0, 69)
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Now it is 18.8 mag (Dec. 20, K. Hills). It keeps 18 mag for a very long time from 2013 to 2018. It locates high in the Southern Hemisphere. But it locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 12 20.05 -23 51.8 8.447 9.159 133 17.8 2:19 ( 0, 31)
Feb. 28 12 18.57 -23 49.5 8.375 9.157 140 17.7 1:50 ( 0, 31)
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Now it is 17.0 mag (Dec. 30, Space Surveillance Telescope, Atom Site). It keeps 18 mag from 2014 to 2015. In 2015, it keeps observable in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 10 46.13 -10 43.4 5.055 5.978 157 17.8 0:45 ( 0, 44)
Feb. 28 10 42.93 -10 51.9 5.045 5.989 160 17.8 0:15 ( 0, 44)
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It brightened up to 13.3 mag in November (Nov. 19, Taras Prystavski). Now it is fading rapidly. It has already faded down to 16.2 mag (Jan. 25, J. L. Martin). It 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. 21 5 32.81 38 49.4 1.493 2.075 111 17.8 19:30 (180, 86)
Feb. 28 5 43.15 38 32.9 1.595 2.110 107 18.1 19:17 (165, 86)
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It was observed at 18 mag from spring to summer in 2014. In the Northern Hemisphere, it will be observable at 18 mag in good conditionn from winter to spring in 2015 again. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 15 30.57 59 44.4 3.971 4.333 104 17.9 5:15 (184, 65)
Feb. 28 15 22.81 62 26.9 3.954 4.339 106 17.9 4:53 (180, 63)
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It will brighten up to 14 mag in 2016 spring. Now it is 17.1 mag (Jan. 22, Mt. Lemmon Survey). In 2015, it is observable in good condition until spring in the Northern Hemisphere. In the Southern Hemisphere, it is not observable in 2015. But it will be observable in good condition at the high light in 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Feb. 21 7 20.82 40 20.7 3.476 4.198 131 17.9 21:17 (180, 85)
Feb. 28 7 17.97 40 1.8 3.496 4.141 124 17.9 20:46 (180, 85)
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