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Now it is so bright as 6.0 mag (May 14, Chris Wyatt). In the Southern Hemisphere, it keeps observable in good condition until late June. In the Northern Hemisphere, it keeps unobservable until September when the comet will be fainter than 13 mag. It must have been observable at 16 mag in good condition in 2014 autumn, but it was not discovered.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 4 33.10 -29 3.9 0.489 0.794 50 5.9 18:32 ( 70, 22)
May 23 6 18.36 -16 6.2 0.639 0.780 50 6.4 18:28 ( 93, 31)
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It brightened up to 3.7 mag and became a naked eye comet in mid January (Jan. 13, Marek Biely). Now it is fading. But it is bright as 7.7 mag still now (May 15, Maik Meyer). In the Northern Hemisphere, it keeps observable all night until July when the comet will fade down to 10 mag. Then it keeps observable for a long time 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)
May 16 1 21.76 83 22.7 2.196 2.000 65 7.7 5:20 (187,-32)
May 23 0 56.11 86 31.3 2.244 2.073 67 8.0 5:24 (183,-33)
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Now it is bright as 9.8 mag (May 14, Chris Wyatt). In the Southern Hemisphere, it keeps observable in good condition for a long time until the comet fades out. 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)
May 16 0 0.71 -3 52.8 1.719 1.427 56 8.9 5:20 (245, 37)
May 23 0 19.26 -1 57.9 1.712 1.452 57 9.1 5:24 (241, 38)
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Now it is 12.5 mag (Apr. 30, Michael Mattiazzo). It will approach to the sun down to 0.3 a.u. in July, and it is expected to brighten up to 3 mag. In the Southern Hemisphere, it is observable in the extremely low sky until early June. Then it becomes unobservable temporarily, but it will be observable after mid July, 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)
May 16 1 46.61 10 44.9 2.111 1.282 26 10.2 5:20 (252, 7)
May 23 2 7.25 14 12.5 1.957 1.149 26 9.6 5:24 (247, 7)
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It brightened up to 12.8 mag until March (Mar. 21, Michael Mattiazzo). It will brighten up to 10.5 mag in May and June, but it is not observable. In the Northern Hemisphere, it will be observable after autumn while the comet will be fading.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 3 47.85 15 0.7 2.359 1.357 5 10.7 18:32 (100,-12)
May 23 4 9.66 17 42.7 2.359 1.351 4 10.6 18:28 (102,-14)
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Now it is 12.3 mag (May 14, Chris Wyatt). It is expected to brighten up to 5 mag from autumn to winter. It keeps observable in excellent condition until autumn in the Southern Hemisphere. In the Northern Hemisphere, it is hardly observable until December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 23 42.70 -23 26.2 3.148 2.951 69 11.8 5:20 (264, 51)
May 23 23 46.68 -24 18.5 2.947 2.867 75 11.5 5:24 (260, 57)
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It will brighten up to 11 mag in April and May. But the condition is bad in this apparition. In the Southern Hemisphere, it is getting higher gradually in the morning sky. 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)
May 16 1 51.19 0 49.0 2.392 1.599 30 11.6 5:20 (260, 12)
May 23 2 9.76 1 45.5 2.406 1.639 32 11.8 5:24 (258, 14)
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It brightened up to 9.5 mag from March to April (Apr. 7, Juan Jose Gonzalez). Now it is fading and getting diffuse rapidly. It has already faded down to 12.5 mag (May 7, Danil Sidorko). It seems to be a fragment of Comets C/1988 A1 (Liller) and C/1996 Q1 (Tabur). It will be fading after this, but it is observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it is not observable until June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 11 25.37 63 55.7 1.142 1.456 84 12.4 19:51 (180, -8)
May 23 11 36.73 54 31.2 1.228 1.548 86 12.8 19:35 (180, 1)
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Now it is 12.9 mag and visible visually (May 11, Sandor Szabo). 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)
May 16 12 22.15 5 31.1 1.423 2.194 127 13.2 20:47 (180, 50)
May 23 12 20.97 5 23.4 1.448 2.153 121 13.1 20:18 (180, 50)
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Now it is 14.6 mag (Apr. 25, Yuji Ohshima). In 2015, it keeps 13-14 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)
May 16 19 26.59 -8 55.5 2.836 3.476 121 13.2 3:54 (180, 64)
May 23 19 27.90 -8 40.8 2.769 3.483 127 13.1 3:28 (180, 64)
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Outburst occured on May 6. Now it is bright as 12.1 mag (May 14, Chris Wyatt).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 17 52.00 -31 46.7 5.184 6.043 145 13.4 2:20 (180, 87)
May 23 17 49.18 -31 48.2 5.125 6.041 152 13.4 1:50 (180, 87)
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Now it is 14.3 mag (May 9, Yasukazu Ikari). It is expected to brighten up to 12 mag from July to August. In the Southern Hemisphere, it keeps observable in good condition until summer. In the Northern Hemisphere, it will be getting higher gradually after May, and will be observable in good condition after summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 20 50.08 -32 32.1 1.439 1.998 108 14.3 5:17 (180, 88)
May 23 20 54.19 -29 34.4 1.315 1.949 113 14.0 4:54 (180, 85)
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It brightened very rapidly. Now it is so bright as 13.8 mag and visible visually (May 11, Sandor Szabo). It keeps 14-15 mag for a while after this. In the Northern Hemisphere, it will be getting lower gradually after May, and will be unobservable in mid June. In the Southern Hemisphere, it will be getting lower gradually after June, and will be unobservable in early August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 9 9.15 7 58.6 3.413 3.435 82 14.3 18:32 (160, 45)
May 23 9 15.26 7 29.0 3.503 3.432 77 14.3 18:28 (154, 44)
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Now it is 15.9 mag (May 11, A. Maury, J.-G. Bosch, J.-F. Soulier, T. Noel). It will brighten up to 11 mag from August to October. In the Northern Hemisphere, it will be getting higher gradually after July, then it keeps observable in good condition. In the Southern Hemisphere, it keeps low until November.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 1 12.62 3 22.6 2.324 1.630 36 14.7 5:20 (252, 18)
May 23 1 32.17 5 32.7 2.249 1.581 38 14.4 5:24 (248, 19)
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It brightened up to 8.2 mag in April (Apr. 8, Juan Jose Gonzalez). Now it is fading. It has already faded down to 13.2 mag (May 11, Sandor Szabo). In the Northern Hemisphere, it keeps locating high in the evening sky in May, but it will fade out rapidly after this. It is not observable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 7 27.47 41 11.7 1.452 1.202 54 14.6 18:32 (151, 6)
May 23 7 45.60 38 37.4 1.684 1.328 52 15.4 18:28 (149, 7)
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It brightened up to 6.9 mag in 2014 autumn (Oct. 17, Marco Goiato). Now it is fading. It has already faded down to 15.5 mag (Apr. 30, K. Hills). In the Southern Hemisphere, it keeps observable in good condition until the comet fades out. 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)
May 16 0 53.40 -16 41.1 4.258 3.726 52 14.7 5:20 (267, 34)
May 23 0 54.65 -16 48.3 4.235 3.801 58 14.7 5:24 (263, 40)
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It brightened up to 9.2 mag in March (Mar. 9, Juan Jose Gonzalez). Now it is fading, but it is bright as 11.0 mag still now (May 1, Seiichi Yoshida). In the Northern Hemisphere, it will be getting higher gradually after this. It is not observable after this in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 1 48.60 56 20.1 2.112 1.518 41 14.7 5:20 (215,-21)
May 23 1 54.86 60 56.8 2.152 1.618 45 15.2 5:24 (209,-21)
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Now it is 14.9 mag (Apr. 17, Taras Prystavski). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 21 25.66 -1 30.2 5.467 5.582 91 15.2 5:20 (195, 56)
May 23 21 27.89 -1 13.6 5.340 5.559 97 15.1 5:24 (182, 56)
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Very far object. However, outburst occured on Feb. 20, and it brightened up to 15 mag. It was reported so bright visually as 11.8 mag (Mar. 11, Marco Goiato). However, it has already faded down to 17.4 mag (Apr. 22, K. Hills). 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)
May 16 12 1.25 -20 55.7 8.440 9.140 131 15.2 20:26 (180, 76)
May 23 12 0.86 -20 36.3 8.520 9.139 125 15.3 19:58 (180, 76)
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Now it is 17.1 mag (Apr. 27, Hidetaka Sato). First return of a comet re-discovered after 112-year blank in 2008. It brightened up to 12 mag in 2008. In this apparition, it was expected to brighten up to 15 mag from spring to summer, but it is fainter than predicted. It keeps locating low in the morning sky for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 0 13.63 6 43.5 1.997 1.537 48 15.3 5:20 (239, 27)
May 23 0 33.84 8 1.8 1.970 1.540 50 15.3 5:24 (236, 28)
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Now it is 15.3 mag (Jan. 7, 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)
May 16 1 41.77 14 28.6 4.805 3.922 26 15.3 5:20 (248, 6)
May 23 1 47.11 15 59.0 4.763 3.931 31 15.3 5:24 (243, 10)
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Now it is 15.8 mag (Feb. 22, Taras Prystavski). It will brighten up to 14 mag from 2015 to 2016. In the Southern Hemisphere, it becomes unobservable temporarily from April to May, but it will be observable in good condition again after June. It will be observable in good condition after July also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 3 3.03 1 54.7 5.235 4.286 18 15.4 5:20 (270, -3)
May 23 3 5.25 2 46.8 5.198 4.274 21 15.4 5:24 (265, 2)
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Now it is 17.2 mag (Apr. 24, Taras Prystavski). It is expected to brighten up to 15 mag in summer, and will be observable in excellent condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 22 25.97 -6 46.0 1.612 1.730 78 15.5 5:20 (223, 54)
May 23 22 41.32 -5 13.9 1.559 1.729 81 15.4 5:24 (215, 55)
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It must have brightened up to 11 mag from January to February, but no observations have been reported. Now it is 15.6 mag (Apr. 24, Taras Prystavski). In the Southern Hemisphere, it is observable in the morning sky after this while the comet will be fading. In the Northern Hemisphere, it will be getting higher after July, but the comet will be faitner than 17 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 0 50.74 -12 2.3 2.218 1.745 49 15.5 5:20 (262, 32)
May 23 1 5.93 -11 18.6 2.221 1.798 52 15.7 5:24 (259, 35)
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It brightened up to 11-12 mag in 2012. It has already faded down to 15.5 mag (May 11, Sandor Szabo). It keeps observable at 15 mag in good condition until summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 11 0.84 -4 55.2 9.029 9.474 113 15.5 19:26 (180, 60)
May 23 10 59.15 -4 38.8 9.180 9.512 106 15.6 18:57 (180, 60)
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Now it is 15.1 mag (Apr. 17, 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. It is already unobservable in the Southern Hemisphere. It will be unobservable soon also in the Northern Hemispehre. But it will appear in the morning sky again in late July, then it keeps observable in excellent condition until winter. In the Southern Hemisphere, it will be observable after mid August, but it keeps very low until winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 4 56.72 33 22.3 5.328 4.426 24 15.6 18:32 (124,-10)
May 23 4 59.99 33 25.1 5.302 4.358 19 15.5 18:28 (122,-13)
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Now it is 14.7 mag (Apr. 1, Taras Prystavski). It is observable at 15-16 mag in good condition in 2015.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 18 45.14 -20 16.7 7.006 7.742 133 15.6 3:13 (180, 75)
May 23 18 41.02 -20 40.7 6.952 7.772 141 15.6 2:41 (180, 76)
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It brightened up to 9 mag from autumn to winter in 2014. Now it is fading rapidly. It has already faded down to 15.0 mag (May 9, Yasukazu Ikari). In the Northern Hemisphere, it will be observable in excellent condition after this while the comet will be fading. In the Southern Hemisphere, it is hardly observable after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 14 12.28 56 37.8 2.629 3.017 102 15.7 22:34 (180, -2)
May 23 13 48.57 55 44.0 2.762 3.089 99 16.0 21:44 (180, -1)
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Now it is bright as 13.9 mag and visible visually (May 14, Chris Wyatt). In this apparition, it turns to approach to the sun down to 1.17 a.u., and it was expected to brighten up to 13 mag from March to May. But actually, it brightened up to 14-15 mag at best. It will be fading after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 20 55.04 -10 26.5 0.488 1.206 101 15.8 5:20 (181, 65)
May 23 21 11.31 -9 9.2 0.496 1.229 103 15.9 5:11 (180, 64)
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It approached to the earth, and brightened up to 12.0 mag from April to May (Apr. 24, Taras Prystavski). However, it will be fading after this, and will be fainter than 18 mag in late July. It is observable in excellent condition in the Southern Hemisphere. It will be observable in excellent condition after May also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 21 42.20 -5 37.3 0.738 1.238 88 15.8 5:20 (204, 59)
May 23 21 52.98 1 11.3 0.750 1.265 90 15.9 5:24 (192, 53)
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It brightened up to 13 mag in winter. Now it is fading. It has already faded down to 16.0 mag (May 5, Yasukazu Ikari). It keeps observable in good condition for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 11 18.43 15 9.1 2.182 2.695 109 15.9 19:44 (180, 40)
May 23 11 22.28 14 6.1 2.300 2.731 104 16.0 19:20 (180, 41)
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It has not been observed yet in this apparition. But it must have already brightened up to 16 mag. It will be observable at 13 mag in good condition from summer to autumn. It was fainter than 17.5 mag on Apr. 24 (Taras Prystavski).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 22 47.24 -11 50.0 1.870 1.898 75 16.2 5:20 (235, 55)
May 23 23 3.18 -10 35.0 1.785 1.870 78 15.9 5:24 (229, 57)
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It brightened up to 13 mag in 2014. Now it is 15.5 mag (Jan. 3, Ken-ichi Kadota). It will be fading slowly after this. It is observable at 16 mag in excellent condition from summer to winter in 2015.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 0 44.86 -2 12.9 4.246 3.611 45 16.2 5:20 (252, 27)
May 23 0 52.03 -1 30.6 4.188 3.626 50 16.2 5:24 (247, 31)
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Now it is 15.8 mag (May 11, Catalina Sky Survey). In the Northern Hemisphere, it keeps 15-16 mag and observable in excellent condition until early summer. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 12 42.54 28 14.3 3.435 4.010 118 16.2 21:07 (180, 27)
May 23 12 40.97 26 53.7 3.536 4.040 112 16.3 20:38 (180, 28)
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It brightened up to 10.6 mag from autumn to winter (Nov. 29, Seiichi Yoshida). Now it is fading. It has already faded down to 15.4 mag (Apr. 20, Taras Prystavski). 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)
May 16 17 23.30 -15 0.2 1.816 2.753 152 16.4 1:52 (180, 70)
May 23 17 16.70 -15 9.8 1.852 2.825 160 16.7 1:17 (180, 70)
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Now it is 17.8 mag (Apr. 25, Yasukazu Ikari). It will brighten rapidly, and will be observable at 16.5 mag in good condition from May to July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 16 31.66 -16 52.3 0.836 1.831 164 16.7 1:00 (180, 72)
May 23 16 29.64 -15 11.5 0.808 1.815 170 16.6 0:30 (180, 70)
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First return of a periodic comet discovered in 1994. Now it is 17.5 mag (Mar. 23, iTelescope Observatory, Siding Spring). It will brighten up to 15 mag from summer to autumn, and will be 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)
May 16 22 9.37 -32 7.3 2.607 2.826 91 16.8 5:20 (265, 74)
May 23 22 18.82 -32 3.7 2.498 2.797 96 16.7 5:24 (259, 78)
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Now it is 17.7 mag (Feb. 17, K. Hills). 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)
May 16 17 12.66 -28 8.5 2.225 3.168 154 16.7 1:41 (180, 83)
May 23 17 8.48 -27 47.9 2.194 3.173 162 16.7 1:09 (180, 83)
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Now it is 16.3 mag (May 12, J. Lozano). It keeps observable after this while the comet will be getting brighter graudually. It will brighten up to 11 mag from autumn to winter. But it locates low at that time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 14 16.10 7 47.9 1.325 2.246 147 16.8 22:40 (180, 47)
May 23 14 9.51 7 53.0 1.320 2.202 141 16.8 22:06 (180, 47)
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Getting observable again in the morning sky. It is fading, but it is observable at 17 mag in good condition until late autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 23 46.25 13 10.9 6.168 5.627 53 16.8 5:20 (228, 27)
May 23 23 47.60 13 6.5 6.113 5.672 59 16.8 5:24 (222, 31)
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It brightened rapidly in outburst in mid October in 2013, then it keeps bright as 8-10 mag for a long time until 2014 summer. Now it is fading. It has already faded down to 15.8 mag (Feb. 9, Taras Prystavski). In the Southern Hemisphere, it keeps observable in good condition for a long time after this until the comet fades out. It is not observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 1 12.44 -31 54.4 5.697 5.272 60 16.8 5:20 (286, 37)
May 23 1 18.16 -32 4.9 5.685 5.334 64 16.9 5:24 (284, 42)
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First return of a periodic comet discovered in 2008. Now it is 19 mag (Apr. 5, WISE). It will approach to the earth from spring to summer, and brighten rapidly. It will brighten up to 16 mag, and will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 21 31.11 -6 46.3 0.842 1.335 91 17.2 5:20 (199, 60)
May 23 22 1.59 -6 17.6 0.794 1.299 91 16.9 5:24 (199, 60)
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Now it is 16.3 mag (Apr. 19, Catalina Sky Survey). It keeps 17 mag for a long time from 2014 to 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 10 54.31 -17 25.4 4.905 5.413 115 17.0 19:19 (180, 72)
May 23 10 49.61 -16 45.4 5.027 5.422 107 17.0 18:47 (180, 72)
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Now it is 17.5 mag (Apr. 27, Hidetaka Sato). It will be observable at 15 mag in good condition in autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 23 47.27 -0 38.7 2.738 2.360 57 17.1 5:20 (240, 37)
May 23 23 59.42 0 28.2 2.649 2.338 61 17.0 5:24 (234, 39)
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Now it is 16.4 mag (Apr. 22, M. Jaeger, W. Vollmann, E. Prosperi, S. Prosperi). It keeps 17 mag until July. 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)
May 16 16 35.71 -23 54.4 1.580 2.566 163 17.1 1:04 (180, 79)
May 23 16 30.52 -23 53.3 1.566 2.572 171 17.1 0:31 (180, 79)
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Now it is 16.5 mag (May 1, R. A. Mastaler, A. F. Tubbiolo). It keeps 17 mag until summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 20 53.84 16 43.5 1.699 2.016 92 17.2 5:20 (181, 38)
May 23 20 32.98 20 40.9 1.590 2.041 101 17.1 4:33 (180, 34)
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Now it is 17.4 mag (May 8, M. Morales). It will brighten up to 14 mag and will be observable in good condition in 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 12 30.68 3 32.9 2.851 3.593 130 17.2 20:55 (180, 52)
May 23 12 29.29 3 37.9 2.896 3.559 123 17.2 20:26 (180, 51)
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It brightened up to 15.3 mag in winter (Jan. 17, Taras Prystavski). Now it is fading. It is observable in good condition in the Southern Hemisphere. It will be observable in good condition after June also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 0 57.72 -21 42.8 2.628 2.209 54 17.3 5:20 (273, 35)
May 23 0 56.29 -20 38.0 2.567 2.245 60 17.4 5:24 (267, 41)
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Now it is 17.4 mag (Apr. 14, A. Klotz, F. Kugel, J. Nicolas, C. Rinner). 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)
May 16 15 53.26 65 41.7 6.546 6.714 95 17.3 0:22 (180,-11)
May 23 15 38.18 65 53.8 6.587 6.727 93 17.4 23:33 (180,-11)
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Brightened rapidly, and it kept brightening even after the perihelion passage. It brightened up to 15.8 mag and visible visually in March (Mar. 18, Sandor Szabo). But it is fading now. It has already faded down to 17.6 mag (May 9, Yasukazu Ikari). It is observable 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)
May 16 9 6.62 42 50.9 2.329 2.256 73 17.4 18:32 (169, 11)
May 23 9 22.51 41 4.9 2.429 2.298 70 17.6 18:28 (167, 13)
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Now it is 17.9 mag (Mar. 21, W. Hasubick). 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)
May 16 21 59.65 48 2.2 4.382 4.165 71 17.4 5:20 (191, 6)
May 23 22 5.33 49 4.6 4.364 4.188 73 17.4 5:24 (187, 5)
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It Brightened up to 15.2 mag and visible visually in March (Mar. 18, Sandor Szabo). Now it is fading. It has already faded down to 16.6 mag (Apr. 27, Mitsunori Tsumura). It keeps observable in good condition for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 11 49.55 10 23.3 1.928 2.569 118 17.5 20:15 (180, 45)
May 23 11 52.51 9 45.5 2.034 2.600 112 17.7 19:50 (180, 45)
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It brightened up to 15.5 mag from autumn to winter (Nov. 25, Taras Prystavski). Now it is fading. It has already faded down to 17.7 mag (Apr. 28, A. Diepvens). It keeps observable in good condition for a while.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 17 52.80 -8 7.1 1.632 2.518 143 17.6 2:21 (180, 63)
May 23 17 48.28 -8 8.0 1.630 2.560 150 17.7 1:49 (180, 63)
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First return of a new periodic comet which brightened up to 12 mag in 2009. It seems to brighten up to 17 mag in summer. It is observable in good condition in the Southern Hemisphere. In the Northern Hemisphere, it keeps locating extremely low after June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 9 28.04 -6 35.7 1.375 1.733 91 17.8 18:32 (161, 60)
May 23 9 39.10 -6 22.1 1.393 1.694 88 17.7 18:28 (155, 59)
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It brightened rapidly, and brightened up to 15.7 mag (Jan. 31, Hidetaka Sato). But it is fading now. It has already faded down to 17.3 mag (Apr. 15, A. Maury, J.-G. Bosch, J.-F. Soulier, T. Noel).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 16 12.54 -35 21.9 0.950 1.934 160 17.7 0:41 ( 0, 90)
May 23 16 7.10 -35 50.0 0.989 1.983 164 18.1 0:08 ( 0, 89)
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Now it is 17.7 mag (May 10, A. Maury, J.-F. Soulier). It has brightened in outburst up to 14 mag twice, in 2006 January and 2011 May. It passes the perihelion in 2015. It keeps observable at 17 mag for a long time after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
May 16 23 12.37 -3 57.0 6.136 5.818 67 17.9 5:20 (234, 45)
May 23 23 15.92 -3 36.0 6.035 5.819 72 17.9 5:24 (226, 49)
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Now it is 17.7 mag (Apr. 30, Catalina Sky Survey). 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)
May 16 9 56.17 45 25.5 5.400 5.340 81 17.9 18:32 (178, 10)
May 23 9 59.09 44 10.9 5.504 5.355 76 18.0 18:28 (174, 11)
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It had been observed at 15 mag for a long time from 2013 to 2014. Now it is fading. It will be observable at 18 mag in good condition 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)
May 16 19 36.13 -29 36.3 4.526 5.151 123 17.9 4:04 (180, 85)
May 23 19 35.08 -29 50.0 4.461 5.172 130 17.9 3:35 (180, 85)
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