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Brightened rapidly, and it reached to 5 mag in early June (June 5, Yoshimi Nagai). It will approach to the sun down to 0.4 A.U. in July, and it was expected to reach up to 2-3 mag. However, its brightening has stopped after that. Now it is 5.4 mag (June 15, Juan Jose Gonzalez). In the Northern Hemisphere, it is observable only until late June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 3 5.00 45 37.0 1.143 0.667 35 5.1 5:34 (219, -8)
June 19 4 40.59 48 14.3 1.143 0.542 28 5.0 5:36 (224,-19)
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It brightened up to 7.9 mag in April and May (May 5, Juan Jose Gonzalez). Now it is fading. But it is still bright as 8.6 mag (June 11, Carlos Labordena). It keeps observable for a long time until when it fades out in the Northern Hemisphere. It will be visible visually until autumn, although it will be low in July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 6 50.95 71 9.0 1.997 1.550 49 9.4 18:25 (159,-28)
June 19 7 8.94 67 58.6 2.115 1.591 46 9.7 18:26 (156,-27)
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Brightening rapidly. It is already so bright as 10.3 mag (June 6, Marco Goiato). It keeps observable bright as 9-10 mag for a long time until autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 22 49.81 -7 11.7 0.868 1.443 99 9.9 5:29 (180, 62)
June 19 23 11.00 -6 55.3 0.828 1.433 101 9.7 5:23 (180, 62)
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It reached up to 7.7 mag in last summer (Aug. 13, Chris Wyatt). It is fading now. It has already faded down to 11.5 mag (May 23, Marco Goiato). In the Southern Hemisphere, it keeps observable for a long time after this. In the Northern Hemisphere, it is only observable in the low sky. It will be getting lower gradually, then it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 19 28.18 -42 1.5 3.579 4.468 147 11.6 2:09 ( 0, 83)
June 19 19 15.75 -43 25.9 3.582 4.512 153 11.7 1:29 ( 0, 82)
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It brightened up to 15.5 mag in January (Jan. 31, C. Rinner, F. Kugel). It is not observable now. The condition of this apparition is bad. It will reach up to 11-12 mag from spring to autumn, but it is not observable.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 4 43.11 22 53.7 2.372 1.376 8 11.7 5:34 (249,-11)
June 19 5 8.80 22 40.9 2.358 1.365 9 11.7 5:36 (249,-10)
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It reached up to 9.2 mag in March (Mar. 20, Marco Goiato). Now it is fading, but still bright as 10.5 mag (June 5, Marco Goiato). It keeps observable in a good condition for a long time. It keeps observable until autumn when it fades down to 16 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 14 10.83 -7 11.2 1.081 1.915 131 11.9 20:48 (180, 62)
June 19 14 15.73 -8 0.2 1.165 1.951 126 12.2 20:26 (180, 63)
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Chris Wyatt reported it was visible visually at 11.3 mag on Apr. 25. But no other observations have been reported. The condition of this apparition is very bad. It will never be observable after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 4 42.39 22 45.2 1.780 0.791 8 12.1 5:34 (249,-10)
June 19 5 20.61 22 25.9 1.833 0.832 6 12.3 5:36 (251,-12)
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It passes the perihelion in August. But the condition of this apparition is bad. It is not observable in the Northern Hemisphere. In the Southern Hemisphere, it appears in the evening sky at 9 mag in late August, then it will keep observable while fading rapidly.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 3 29.63 25 13.9 2.049 1.210 25 13.4 5:34 (238, 1)
June 19 3 57.66 26 41.3 1.930 1.101 25 12.3 5:36 (236, 1)
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Now it is 12.6 mag (June 12, Marco Goiato). It will keep 12-13 mag until autumn. But it locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 14.54 -27 10.4 1.772 2.520 127 12.9 3:55 (180, 82)
June 19 21 15.57 -27 51.8 1.721 2.531 133 12.8 3:28 (180, 83)
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It brightened up to 9.5 mag in January (Jan. 13, Juan Jose Gonzalez). Now it is fading rapidly. But it is still bright as 12.3 mag (June 4, Juan Jose Gonzalez). It will be observable in good condition for a long time after this in the Northern Hemisphere. It keeps visible visually until summer. In mid March, the nuclear fragmentation was observed.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 14 34.03 60 41.9 3.377 3.521 89 13.6 21:11 (180, -6)
June 19 14 33.72 59 32.0 3.465 3.576 87 13.8 20:43 (180, -4)
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Great outburst up to 11 mag occured on Feb. 2. Another new minor outburst occured on Apr. 16 (Albert Sanchez Caso). It is bright as 11.8 mag still now (June 3, Juan Jose Gonzalez).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 9 31.39 11 57.9 6.651 6.215 60 14.1 18:25 (139, 33)
June 19 9 34.98 11 38.5 6.746 6.216 54 14.1 18:26 (133, 30)
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Bright new comet discovered as a bright stellar object of 12.5 mag on Apr. 16. It was not detected, fainter than 20 mag, on the previous day (Apr. 15, Catalina Sky Survey). It was discovered just after the sudden outburst. It is bright as 12.0 mag still now (June 6, Jose Guilherme S. Aguiar), but it looks diffuse. It has faded down to 14.3 mag by CCD observations (June 3, Ken-ichi Kadota).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 13 15.03 1 49.1 2.562 3.136 115 14.9 19:52 (180, 53)
June 19 13 16.03 1 1.5 2.652 3.140 109 15.3 19:26 (180, 54)
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Now it is visible visually at 14.3 mag (May 21, Alan Hale). It keeps observable for a long time until September when it becomes fainter than 18 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 16 11.31 -26 25.2 0.806 1.804 164 15.1 22:48 (180, 81)
June 19 16 12.44 -25 33.2 0.847 1.829 157 15.3 22:22 (180, 81)
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Now it is 15.6 mag (June 7, Toni Scarmato). It is also visible visually at 14.5 mag (Apr. 10, Juan Jose Gonzalez). It keeps observable at 15 mag for a long time in 2010.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 17 49.75 40 23.4 4.059 4.597 116 15.2 0:30 (180, 15)
June 19 17 45.78 41 8.3 4.057 4.586 115 15.2 23:54 (180, 14)
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Now it is 15.5 mag (May 14, Richard Brown). It keeps bright as 14-15 mag for a long time after this until 2013. It is observable in good condition in the Southern Hemisphere. However, it is not observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 14 46.95 -48 23.3 6.008 6.824 140 15.2 21:24 ( 0, 77)
June 19 14 41.24 -48 20.1 6.032 6.795 135 15.2 20:51 ( 0, 77)
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Now it is 15.6 mag (June 8, Robert McNaught). It is expected to keep so bright as 6-8 mag for a long time from 2011 to 2012, and to be observable in good condition in the Northern Hemisphere. In 2010, it is observable in good condition in the Southern Hemisphere while brightening slowly. It locates low in the Northern Hemisphere, but it keeps observable until the end of 2010.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 23 58.47 -32 17.9 6.126 6.289 94 15.4 5:34 (263, 76)
June 19 23 58.17 -32 37.1 5.963 6.230 100 15.3 5:36 (253, 82)
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Now it is 15.7 mag (June 14, Catalina Sky Survey). It will be observable at 13-14 mag for a long time from 2011 to 2012. In 2010, it is observable at 15-16 mag in good condition from spring to autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 50.17 2 11.8 6.732 7.138 109 15.5 4:30 (180, 53)
June 19 21 46.65 2 10.4 6.587 7.104 116 15.5 3:59 (180, 53)
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It had been unobservable for a while, but it is getting observable in the morning sky now. Now it is 16.1 mag (June 3, Francois Kugel). It keeps observable after this while fading gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 2 56.18 42 20.0 2.816 2.074 35 15.5 5:34 (220, -5)
June 19 3 13.45 44 51.5 2.819 2.115 38 15.6 5:36 (217, -5)
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Brightening rapidly. Now it is 16.6 mag (June 14, C. Rinner, F. Kugel). This apparition is best condition. It will approach to the earth down to 0.12 A.U. in October, and brighten up to 5 mag. It will be visible with naked eyes. In the Northern Hemisphere, it keeps observable all through this apparition until 2011 June when it fades down to 17 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 45.55 6 40.9 1.443 2.012 108 16.3 4:25 (180, 48)
June 19 21 52.71 8 40.7 1.322 1.950 112 15.9 4:05 (180, 46)
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Now it is 16.0 mag (June 12, Toshiyuki Takahashi). It was observed as 15-16 mag in early 2009. In 2010, it was also observed at 16 mag in good condition from winter to spring. But it will be getting lower in the evening sky after this. It will be too low to observe in August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 13 18.08 -2 17.3 3.132 3.718 117 15.9 19:55 (180, 57)
June 19 13 18.66 -2 37.3 3.229 3.725 111 16.0 19:29 (180, 58)
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It reached up to 15.0 mag in March (Mar. 8, D. Storey). Now it is fading. It has already faded down to 17.3 mag (June 7, Catalina Sky Survey). It will be too low to observe in July at 17 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 11 5.70 11 59.0 2.206 2.298 82 16.6 18:25 (166, 42)
June 19 11 15.43 10 38.1 2.292 2.309 78 16.7 18:26 (160, 42)
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It brightened up to 11 mag in spring and summer in 2009. Appearing in the morninig sky again. Now it is 16.4 mag (May 1, Ken-ichi Kadota). It keeps observable after this until autumn when it becomes fainter than 18 mag while fading gradually. But it locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 20 7.76 -25 21.5 2.169 3.033 141 16.6 2:48 (180, 80)
June 19 20 3.77 -25 40.2 2.140 3.059 149 16.6 2:17 (180, 81)
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Now it is 15.6 mag (June 3, Hidetaka Sato). Now it is fading rapidly, but it is much brighter than this ephemeris. It has a very faint large coma.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 11 43.63 41 6.9 1.735 1.839 79 16.8 18:25 (179, 14)
June 19 11 56.88 36 1.9 1.831 1.900 77 17.1 18:26 (176, 19)
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It brightened up to 13 mag and observed visually from 2007 to 2009. Due to the far distance, it is bright as 15.8 mag still now (June 12, Ken-ichi Kadota). It will be getting lower in the evening sky after this, and it will be too low to observe in August. However, it will be observable in good condition again at 17.5 mag in autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 11 38.91 40 43.2 8.437 8.295 78 16.9 18:25 (178, 14)
June 19 11 37.33 40 14.1 8.569 8.329 72 16.9 18:26 (172, 14)
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Now it is 17.2 mag (May 16, Ken-ichi Kadota). It keeps 17 mag for a while after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 15 20.21 -2 58.9 1.649 2.546 144 16.9 21:57 (180, 58)
June 19 15 18.45 -3 47.4 1.676 2.530 138 17.0 21:28 (180, 59)
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Now it is 17.2 mag (May 19, Hidetaka Sato). It will be observable at 17 mag in good condition in summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 35.10 -7 43.1 2.803 3.388 117 17.0 4:15 (180, 63)
June 19 21 23.69 -6 42.3 2.693 3.390 125 17.0 3:37 (180, 62)
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Now it is 17.8 mag (June 13, Catalina Sky Survey). It will reach up to 17 mag in spring and summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 9.77 -11 42.9 2.778 3.454 124 17.1 3:50 (180, 67)
June 19 21 7.98 -13 30.7 2.714 3.477 132 17.1 3:21 (180, 68)
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It was bright as 15 mag in early May at the discovery. But it is fading rapidly. It has already faded down to 17.2 mag (June 7, P. C. Sherrod). It will be fainter than 18 mag in late June.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 14 21.28 24 5.2 1.692 2.323 115 17.3 20:57 (180, 31)
June 19 14 5.52 24 40.2 1.867 2.380 107 17.6 20:14 (180, 30)
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Now it is 17.2 mag (June 2, Ken-ichi Kadota). It keeps observable at 17.5 mag in good condition for a long time in 2010.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 21 18.86 85 15.0 5.121 4.856 69 17.4 3:59 (180,-30)
June 19 19 47.74 85 52.0 5.110 4.861 70 17.4 2:02 (180,-31)
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Now it is 17.0 mag (June 9, Yasukazu Ikari). It keeps observable at 17-18 mag for a long time until 2011 summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 20 34.12 7 54.9 3.609 4.252 123 17.7 3:15 (180, 47)
June 19 20 24.45 8 58.1 3.503 4.230 130 17.6 2:37 (180, 46)
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Now it is 17.7 mag (June 4, P. Bacci). It will be fainter than 18 mag in July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
June 12 18 46.83 43 7.2 6.584 7.009 110 17.7 1:27 (180, 12)
June 19 18 43.22 43 21.6 6.614 7.059 112 17.7 0:56 (180, 12)
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