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Now it is 7.6 mag (Apr. 20, Marco Goiato). It will pass close to the earth from spring to summer, and it is expected to brighten up to 5-6 mag. But it is somewhat fainter than this ephemeris. In the Southern Hemisphere, it keeps observable in excellent condition after this. In the Northern Hemisphere, it locates low in the south.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 23 28.45 -1 46.0 1.767 1.322 47 6.8 3:37 (277, 7)
May 7 23 24.62 -3 38.6 1.602 1.337 56 6.6 3:27 (282, 11)
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It passed only 0.036 a.u. from the earth on Mar. 21-22, and brightened up to 3.9 mag (Mar. 21, Thomas Lehmann). It keeps brightening even after the perihelion passage. It is very bright as 6.5 mag still now (Apr. 18, Marco Goiato). It keeps observable in excellent condition for a while after this both in the Northern Hemisphere and Southern Hemisphere. It may fade out very rapidly.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 17 18.77 8 23.3 0.237 1.180 132 7.1 2:47 ( 0, 63)
May 7 17 11.37 8 57.8 0.280 1.231 137 7.8 2:12 ( 0, 64)
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Now it is so bright as 10.5 mag (Apr. 28, Danil Sidorko). It will be fading slowly after this. It is observable in excellent condition in the Northern Hemisphere. It is observable in the evening sky also in the Southern Hemisphere until August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 11 2.63 49 54.4 2.282 2.664 100 10.1 20:27 (180, 75)
May 7 10 59.39 46 20.6 2.392 2.713 97 10.3 20:26 (156, 78)
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Now it is 12.2 mag (Apr. 28, Danil Sidorko). It will brighten up to 11 mag from spring to summer. In the Northern Hemisphere, it will be getting lower after this, and will be unobservable in June. It locates somewhat low in the Southern Hemisphere, but it keeps observable until August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 6 52.13 22 41.5 2.013 1.781 62 12.0 20:17 ( 94, 37)
May 7 7 8.66 22 28.1 2.040 1.752 59 11.9 20:26 ( 96, 33)
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Now it is 10.8 mag (Apr. 26, J.P.Navarro Pina). It brightened up to 6 mag from autumn to winter. Now it is fading. It is not observable after this in the Southern Hemisphere. It will be extremely low from May to June also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 4 48.28 47 17.7 3.382 2.739 43 12.0 20:17 (132, 24)
May 7 4 54.56 47 0.4 3.540 2.824 38 12.3 20:26 (134, 20)
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Now it is 14.0 mag (Apr. 15, Seiichi Yoshida). Brightening very rapidly, but it is fainter than this ephemeris. It is expected to be observable at 11 mag in good condition from spring to summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 11 40.57 19 1.7 0.994 1.786 126 12.3 21:05 ( 0, 74)
May 7 11 40.05 17 45.7 1.011 1.754 120 12.1 20:37 ( 0, 73)
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Now it is 12.9 mag (Apr. 28, Danil Sidorko). It keeps 12-13 mag for a long time from 2015 autumn to 2016 summer. In the Northern Hemispehre, it keeps observable in good condition for a long time. It keeps unobservable until July in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 19 9.54 72 0.1 2.674 2.722 81 12.2 3:37 (188, 52)
May 7 18 37.74 72 22.6 2.659 2.738 83 12.2 3:27 (181, 53)
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Now it is 13.4 mag (Apr. 15, Seiichi Yoshida). It keeps 13 mag for a while. 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)
Apr. 30 15 51.48 -23 25.0 1.349 2.317 158 13.3 1:20 ( 0, 32)
May 7 15 46.38 -23 24.8 1.340 2.334 166 13.3 0:47 ( 0, 32)
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It is observable in excellent condition in the Southern Hemisphere. Now it is faint as 17.1 mag (Apr. 27, Jean-Francois Soulier).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 19 55.04 -25 16.7 5.618 5.941 103 13.6 3:37 (334, 25)
May 7 19 55.71 -25 15.5 5.509 5.939 110 13.5 3:27 (338, 26)
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First return of an object discovered as an asteroid 2007 VA85 in 2007. It brightened very rapidly since mid February, and brightened up to 11.3 mag in spring (Mar. 5, Juan Jose Gonzalez). In the Northern Hemisphere, it locates extremely low in May, but it will be observable in the morning sky after June. However, it may fade out very rapidly and may be fainter than 18 mag. It keeps unobservable until September in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 3 9.08 39 15.7 1.992 1.173 25 13.5 20:17 (136, 5)
May 7 3 5.72 40 47.6 2.055 1.206 24 14.6 20:26 (142, 1)
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Now it is very bright as 13.0 mag (Apr. 17, A. Novichonok, G. Borisov). In the Northern Hemisphere, it is observable at 13-14 mag in excellent condition until June. It locates very low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 23 16.38 29 59.6 1.871 1.392 46 13.7 3:37 (251, 27)
May 7 23 6.61 33 5.1 1.745 1.411 53 13.7 3:27 (250, 33)
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It will brighten up to 11 mag from summer to autumn. It will appear in the morning sky in summer, but it keeps low for some time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 1 5.36 16 48.6 2.727 1.818 20 14.1 3:37 (248, -1)
May 7 1 23.76 18 15.9 2.665 1.772 22 13.9 3:27 (247, 0)
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Now it is bright as 13.0 mag (Apr. 14, C. Rinner, F. Kugel, A. Klotz, J. Nicolas). Although it was faint as 19.0 mag in January (Jan. 10, B. Lutkenhoner), it brightened rapidly in February. It keeps observable until May in the Northern Hemisphere, or until July in the Southern Hemisphere. But it keeps extremely low. The brightness differs in every apparition. It was not observed in the last apparition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 5 6.37 17 31.7 1.885 1.249 37 14.1 20:17 (102, 13)
May 7 5 34.59 17 32.8 1.921 1.280 37 14.4 20:26 (103, 12)
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Now it is 14.7 mag (Apr. 11, Yuji Ohshima). It will be observable at 14 mag in good condition from spring to summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 20 35.35 -13 11.8 2.176 2.430 92 14.5 3:37 (318, 31)
May 7 20 43.81 -12 40.0 2.097 2.430 96 14.5 3:27 (320, 32)
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It will brighten up to 14 mag in summer. But it is not observable now. It will be observable at 16.5 mag in September in the Northern Hemisphere, or in November in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 4 7.65 15 3.1 2.899 2.017 23 14.6 20:17 (109, 0)
May 7 4 24.27 15 53.8 2.916 2.007 21 14.5 20:26 (112, -3)
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Now it is 14.6 mag (Apr. 8, Seiichi Yoshida). It is observable at 14-15 mag in good condition from winter to summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 12 45.72 -14 10.7 1.385 2.336 154 14.6 22:10 ( 0, 41)
May 7 12 39.72 -14 55.8 1.423 2.335 147 14.6 21:37 ( 0, 40)
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Now it is 15.1 mag (Jan. 2, Ken-ichi Kadota). Distant object, but it keeps observable at 14-15 mag for a long time from 2015 to 2016. It becomes unobservable temporarily from January to March in the Southern Hemisphere, or from February to April in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 23 53.60 0 9.8 5.599 4.887 41 14.6 3:37 (272, 3)
May 7 23 59.93 0 35.1 5.526 4.885 46 14.6 3:27 (273, 6)
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Now it is 15.3 mag (Apr. 17, J. Aledo). It is expected to brighten up to 7 mag in 2017 summer. In the Northern Hemisphere, it keeps observable in good condition until the highlight while the comet will be brightening. In the Southern Hemisphere, it is not observable until early 2017.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 7 1.20 59 4.6 5.260 4.938 66 15.5 20:17 (141, 46)
May 7 7 7.90 58 34.9 5.273 4.875 61 15.5 20:26 (140, 42)
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It brightened very rapidly in 2015 spring, and reached up to 13.8 mag (May 11, Sandor Szabo). It is bright as 14.4 mag still now (Apr. 8, Ken-ichi Kadota). 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)
Apr. 30 13 52.95 -29 7.9 3.161 4.136 163 16.0 23:17 ( 0, 26)
May 7 13 49.44 -28 40.4 3.198 4.163 160 16.1 22:46 ( 0, 26)
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Now it is 16.6 mag (Mar. 30, J. Tuten, B. Lutkenhoner, R. C. Bubany, D. P. Dean). It keeps 16-17 mag for a long time until 2016 autumn. In the Southern Hemisphere, it keeps observable for a long time. It will be unobservable after this in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 4 26.77 -31 54.6 2.802 2.363 54 16.2 20:17 ( 66,-22)
May 7 4 36.91 -32 50.2 2.772 2.346 55 16.1 20:26 ( 68,-28)
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Now it is 16.0 mag (Apr. 14, H. Boussier). It will brighten up to 14 mag in 2017. In 2016, it keeps observable at 16 mag in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 11 22.33 15 15.4 3.080 3.748 124 16.1 20:47 ( 0, 70)
May 7 11 21.14 15 0.2 3.149 3.731 118 16.2 20:26 ( 5, 70)
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It brightened up to 3.7 mag and became a naked eye comet in mid January in 2015 (Jan. 13, Marek Biely). Now it is fading. It has already faded down to 16.1 mag (Mar. 26, Toshiyuki Takahashi). In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 18 22.72 26 16.0 5.078 5.506 110 16.1 3:37 (340, 81)
May 7 18 18.85 26 36.6 5.075 5.569 114 16.2 3:19 ( 0, 82)
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Now it is 16.1 mag (Apr. 5, Yasukazu Ikari). It keeps 16 mag until autumn. It keeps observable in good condition for a long time in the Northern Hemisphere. It keeps unobservable in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 4 35.33 73 27.9 5.822 5.412 61 16.2 20:17 (160, 32)
May 7 4 53.36 73 45.2 5.873 5.427 59 16.2 20:26 (161, 31)
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Now it is 16.7 mag (Apr. 15, Hiroshi Abe). It will brighten up to 16 mag from April to May. 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)
Apr. 30 15 37.91 -30 44.9 1.054 2.022 157 16.3 1:07 ( 0, 24)
May 7 15 28.89 -32 50.8 1.044 2.029 162 16.4 0:30 ( 0, 22)
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Now it is 16.8 mag (Apr. 12, K. Hills). The cometary activity is confirmed recently. It is expected to brighten up to 7 mag in 2017 spring. But it locates somewhat low at the high light.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 11 10.76 -1 27.5 4.183 4.881 129 16.5 20:36 ( 0, 53)
May 7 11 8.61 -1 4.1 4.205 4.813 121 16.4 20:26 ( 8, 54)
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Now it is 16.5 mag (Apr. 5, Yasukazu Ikari). It keeps 16-17 mag for a long time from 2016 to 2019. It keeps locating near by the equator.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 8 1.54 3 39.0 10.035 9.949 82 16.5 20:17 ( 61, 40)
May 7 8 3.34 3 51.5 10.132 9.939 76 16.5 20:26 ( 69, 33)
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It brightened rapidly, and reached up to 15.5 mag (Feb. 11, Yasukazu Ikari). It will be fading after this. It has already faded down to 16.5 mag (Apr. 5, Yasukazu Ikari). It keeps observable until August when the comet becomes fainter than 18 mag in the Northern Hemisphere. It will be unobservable soon in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 8 18.40 38 31.0 2.516 2.519 78 16.5 20:17 (108, 59)
May 7 8 25.50 39 42.1 2.610 2.516 73 16.6 20:26 (111, 54)
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Appearing in the morning sky. It will be observable at 13 mag for a long time from 2017 to 2018. In 2016, it keeps observable at 16-17 mag in good condition until autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 20 22.27 -13 52.6 6.477 6.646 95 17.1 3:37 (321, 32)
May 7 20 20.42 -13 30.5 6.312 6.602 102 17.0 3:27 (326, 35)
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Now it is 16.6 mag (Apr. 9, MASTER-IAC Observatory, Tenerife). It keeps observable at 17 mag in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 14 53.26 3 38.0 1.672 2.644 160 17.1 0:22 ( 0, 59)
May 7 14 47.56 3 21.3 1.689 2.659 159 17.1 23:44 ( 0, 58)
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It brightened up to 11.1 mag in 2015 autumn (Sept. 21, Seiichi Yoshida). Now it is 15.3 mag (Apr. 6, Thomas Lehmann). 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)
Apr. 30 11 12.46 12 42.8 2.220 2.905 123 17.1 20:37 ( 0, 68)
May 7 11 12.50 12 16.8 2.349 2.953 117 17.3 20:26 ( 10, 67)
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It brightened up to 13-14 mag from 2014 to 2015. Now it is fading. It will be observable at 17 mag in 2016.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 22 59.59 -4 28.9 5.404 4.904 55 17.2 3:37 (284, 12)
May 7 23 4.44 -4 5.3 5.356 4.946 61 17.2 3:27 (286, 14)
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Now it is 17.4 mag (Apr. 14, ATLAS-HKO, Haleakala). It brightened rapidly, and became brighter than originally expected. It keeps 17 mag until 2017. 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)
Apr. 30 15 30.07 75 18.5 7.243 7.303 89 17.2 0:58 (180, 50)
May 7 15 8.19 75 21.7 7.268 7.299 87 17.2 0:09 (180, 50)
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It brightened up to 11-12 mag in 2012. It has already faded down to 16.2 mag (Mar. 28, Toshiyuki Takahashi). It is observable at 17 mag in good condition from winter to spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 10 24.96 -3 1.6 10.836 11.352 118 17.3 20:17 ( 11, 51)
May 7 10 23.47 -2 46.4 10.980 11.390 111 17.3 20:26 ( 25, 49)
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It was observed as bright as 13-14 mag for a long time from 2011 to 2014. Now it is fading. It is observable in excellent condition in the Southern Hemisphere. It locates extremely low in the Northern Hemisphere. No observations have been reported since August, 2015.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 18 2.21 -35 9.9 8.696 9.355 128 17.3 3:30 ( 0, 20)
May 7 17 58.69 -35 31.3 8.642 9.389 135 17.3 2:59 ( 0, 19)
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It was discovered around the aphelion in 2013 December. It keeps observable at 17 mag in good condition from 2016 to 2017. No observations have been reported since 2014 March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 12 12.24 5 52.5 1.916 2.766 140 17.4 21:37 ( 0, 61)
May 7 12 8.46 5 50.1 1.945 2.732 132 17.5 21:06 ( 0, 61)
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Now it is 18.1 mag (Apr. 18, A. Diepvens). In the Northern Hemisphere, it keeps observable in good condition after this while the comet will be fading. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 13 22.45 29 55.4 2.614 3.377 132 17.4 22:46 ( 0, 85)
May 7 13 16.75 29 14.3 2.703 3.418 128 17.6 22:13 ( 0, 84)
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Now it is 17.1 mag (Apr. 8, D. Buczynski). It keeps 17.5 mag from 2016 to 2017. It is observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it locates low in 2016, and it is not observable in 2017.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 17 23.25 28 14.3 5.870 6.432 119 17.5 2:51 ( 0, 83)
May 7 17 20.33 29 27.2 5.826 6.421 122 17.4 2:21 ( 0, 84)
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Now it is 18.3 mag (Mar. 9, C. Jacques, E. Pimentel, J. Barros). It was expected to brighten up to 14 mag from winter to summer. But it is much fainter actually. It will be 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)
Apr. 30 16 37.03 -37 31.3 1.648 2.532 143 17.6 2:05 ( 0, 17)
May 7 16 34.02 -38 22.3 1.647 2.569 149 17.6 1:35 ( 0, 17)
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Now it is 17.3 mag (Apr. 19, C. Jacques, E. Pimentel, J. Barros). It will be observable at 17.5 mag in good condition from April to May in the Southern Hemisphere. It is not observable after this in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 18 39.52 -70 60.0 0.871 1.566 112 17.6 3:37 (357,-16)
May 7 19 23.84 -75 28.1 0.892 1.577 112 17.7 3:27 (356,-21)
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It has not been observed yet in this apparition. It will be observable at 17 mag from spring to autumn. It will be extremely low after summer in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 14 42.58 -15 56.7 1.732 2.738 176 17.8 0:11 ( 0, 39)
May 7 14 36.18 -16 1.7 1.705 2.712 175 17.7 23:33 ( 0, 39)
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Now it is 17.9 mag (Mar. 19, iTelescope Observatory, Siding Spring). It keeps 17-18 mag for a long time from 2016 to 2017. In 2016, it is observable in excellent condition in the Southern Hemisphere, but it locates extremely low in the Northern Hemispehre.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 11 58.32 -41 26.9 3.020 3.827 137 17.7 21:23 ( 0, 14)
May 7 11 57.51 -39 43.9 3.012 3.793 135 17.7 20:55 ( 0, 15)
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Very far object. Outburst occured on Feb. 20, 2015, and it brightened up to 15 mag. But it is faint as 18.4 mag now (Apr. 13, K. Hills). 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)
Apr. 30 13 17.16 -24 47.9 8.222 9.176 160 17.7 22:42 ( 0, 30)
May 7 13 15.46 -24 28.3 8.253 9.179 155 17.7 22:12 ( 0, 30)
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Now it is 17.4 mag (Apr. 15, H. Nohara). It becomes brighter than at the discovery in 2015. It is observable at 17.5 mag in good condition from spring to summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 15 3.99 1 31.5 5.461 6.425 161 17.8 0:32 ( 0, 56)
May 7 14 59.81 2 32.2 5.484 6.445 160 17.8 0:01 ( 0, 57)
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First return of a peculiar asteroid 1998 HO121. It brightened up to 16.5 mag in early 2015 (Jan. 4, M. Jaeger, E. Prosperi, S. Prosperi, W. Vollmann). It is observable at 17.5 mag again in 2016 spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 13 39.07 -2 9.2 2.754 3.726 162 17.8 23:03 ( 0, 53)
May 7 13 36.08 -1 41.8 2.815 3.754 155 17.9 22:33 ( 0, 53)
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It is expected to brighten up to 16 mag and observable in good condition in autumn. However, it is so faint as 19.7 mag now (Apr. 16, A. Maury, J.-B. de Vanssay, J.-G. Bosch, J.-F. Soulier).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 22 26.08 -17 9.5 3.441 3.204 68 17.9 3:37 (299, 10)
May 7 22 33.78 -16 26.5 3.328 3.179 72 17.8 3:27 (300, 12)
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Now it is 18.0 mag (Apr. 12, A. Maury, J.-B. de Vanssay, J.-G. Bosch, J.-F. Soulier). It keeps observable at 17.5 mag in good condition from spring to autumn in the Southern Hemisphere. It is not observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 18 18.97 -61 54.1 4.524 5.077 118 17.8 3:37 (359, -7)
May 7 18 19.10 -62 31.5 4.452 5.066 122 17.8 3:20 ( 0, -7)
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Although it was bright as 17 mag at the discovery in 2006, it faded out before the perihelion passage in 2008, and it became lost. Now it is fainter than 22 mag (June 15, 2015, Erwin Schwab, Marco Micheli).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 15 56.77 6 1.3 3.610 4.511 150 17.8 1:25 ( 0, 61)
May 7 15 53.13 6 18.6 3.582 4.504 152 17.8 0:54 ( 0, 61)
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It has not been observed yet in this apparition. It will brighten up to 16.5 mag in summer and will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 18 21.89 -16 12.8 2.309 2.994 124 18.0 3:37 (356, 39)
May 7 18 22.12 -15 37.5 2.211 2.971 130 17.8 3:22 ( 0, 39)
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It keeps 16 mag for a long time from 2017 to 2018. Now it is 17.5 mag (Apr. 6, W. Hasubick). In the Southern Hemisphere, it keeps observable in good condition until early summer. It will be unobservable in May in the Northern Hemispehre.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 8 55.91 -23 19.4 6.492 6.768 101 17.9 20:17 ( 30, 25)
May 7 8 55.32 -22 8.8 6.558 6.738 95 17.9 20:26 ( 38, 22)
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First return of a new periodic comet which brightened up to 16.5 mag in 2008. The condition of this apparition is very good. It is expected to brighten up to 15.5 mag in autumn and will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Apr. 30 23 3.04 -26 54.5 2.982 2.718 65 18.0 3:37 (301, -3)
May 7 23 13.43 -25 57.9 2.884 2.694 69 17.9 3:27 (301, -1)
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