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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. It was 4.9 mag in late June (June 24, Carlos Labordena). It was faint as about 6 mag on July 2 (Todd Augustyniak). Now it is not observable. In the Southern Hemisphere, it will appear in the morning sky at 9 mag in late Augut. Then it keeps observable while fading rapidly. In the Northern Hemisphere, it is will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 9 11.73 -8 3.3 1.766 0.944 24 7.4 18:48 ( 77, -3)
Aug. 14 9 24.52 -13 59.5 1.850 1.076 28 8.2 5:16 (287, 0)
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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)
Aug. 7 9 35.21 13 49.0 1.316 0.336 7 7.6 18:48 ( 99,-10)
Aug. 14 10 33.23 5 53.3 1.224 0.392 17 7.9 18:53 ( 96, 0)
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Brightened rapidly. Now it is so bright as 8.4 mag (Aug. 7, Marco Goiato). It keeps observable bright as 9-10 mag for a long time until autumn. A thin straight dust trail is visible.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 1 13.36 -10 24.3 0.665 1.465 119 9.3 4:12 (180, 65)
Aug. 14 1 23.73 -11 42.6 0.656 1.484 124 9.4 3:55 (180, 67)
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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 10.2 mag (Aug. 6, Juan Jose Gonzalez). It keeps observable for a long time until when it fades out in the Northern Hemisphere. It will be visible visually until autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 8 4.97 54 47.8 2.648 1.983 40 11.6 5:23 (220,-26)
Aug. 14 8 8.78 53 47.5 2.674 2.048 42 11.8 5:16 (219,-23)
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Brightening rapidly. Now it is 13.2 mag (Aug. 6, Juan Jose Gonzalez). A bit fainter than expected, but it is already visible visually. 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)
Aug. 7 22 31.76 26 15.2 0.634 1.516 132 12.3 1:31 (180, 29)
Aug. 14 22 36.15 29 18.8 0.560 1.457 133 11.7 1:08 (180, 26)
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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)
Aug. 7 7 59.41 14 30.0 2.362 1.418 16 11.9 5:23 (255, -3)
Aug. 14 8 21.06 12 37.7 2.375 1.443 17 12.1 5:16 (256, -2)
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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 11.9 mag (July 7, 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 extremely 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)
Aug. 7 17 46.48 -47 53.6 4.131 4.829 128 12.5 20:43 ( 0, 77)
Aug. 14 17 37.62 -47 53.2 4.271 4.875 121 12.7 20:06 ( 0, 77)
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Now it is 11.7 mag (Aug. 6, Juan Jose Gonzalez). 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)
Aug. 7 20 50.49 -32 57.2 1.636 2.623 163 12.9 23:46 (180, 88)
Aug. 14 20 45.25 -33 17.3 1.671 2.639 158 13.0 23:13 (180, 88)
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It reached up to 9.2 mag in March (Mar. 20, Marco Goiato). Now it is fading. It has already faded down to 12.2 mag (Aug. 6, Juan Jose Gonzalez). 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)
Aug. 7 15 11.89 -14 26.4 1.886 2.222 95 13.9 18:48 (154, 68)
Aug. 14 15 22.02 -15 18.9 2.003 2.262 91 14.1 18:53 (141, 66)
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Now it is unobservable. It will appear in the morning sky again in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 10 5.64 8 41.1 7.191 6.224 16 14.2 18:48 ( 99, -2)
Aug. 14 10 10.47 8 11.2 7.216 6.225 11 14.2 18:53 ( 95, -7)
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Now it is bright as 13.4 mag and visible visually (Aug. 7, Alan Hale). 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)
Aug. 7 23 35.87 -36 14.6 4.982 5.812 141 14.6 2:36 ( 0, 89)
Aug. 14 23 29.44 -36 47.6 4.884 5.751 145 14.5 2:02 ( 0, 88)
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It brightened up to 9.5 mag in January (Jan. 13, Juan Jose Gonzalez). Now it is fading. But it is still bright as 14.5 mag (Aug. 9, Toshiyuki Takahashi). It will be also visible visually still now. It will be fainter than 18 mag at the end of 2010. In the Northern Hemisphere, it keeps observable for a long time, although it will be getting lower gradually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 14 59.25 49 37.5 4.082 3.965 76 15.0 18:48 (172, 5)
Aug. 14 15 5.66 48 9.2 4.169 4.021 74 15.2 18:53 (167, 5)
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Now it is 15.3 mag (July 18, Hiroshi Abe). 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)
Aug. 7 21 8.69 0 24.3 5.895 6.872 163 15.1 0:09 (180, 55)
Aug. 14 21 2.13 -0 4.0 5.861 6.839 163 15.1 23:30 (180, 55)
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Now it is very bright as 14.2 mag (July 8, Toni Scarmato). It keeps observable at 14-15 mag for a long time in 2010.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 17 25.28 41 29.6 4.200 4.532 102 15.2 20:22 (180, 14)
Aug. 14 17 24.93 40 59.7 4.236 4.527 100 15.2 19:54 (180, 14)
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Now it is 15.0 mag (June 2, Hidetaka Sato). 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)
Aug. 7 14 20.88 -47 34.7 6.436 6.596 94 15.2 18:48 ( 46, 69)
Aug. 14 14 20.92 -47 33.7 6.509 6.569 88 15.2 18:53 ( 52, 64)
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Now it is 16.5 mag (July 11, C. Rinner, F. Kugel). It keeps observable while fading gradually, and it will be fainter than 18 mag in November.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 5 32.67 58 54.5 2.818 2.428 57 16.5 5:23 (203,-12)
Aug. 14 5 54.76 60 21.7 2.814 2.475 60 16.7 5:16 (202,-13)
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Now it is 16.7 mag (June 13, 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)
Aug. 7 19 31.59 -0 33.1 2.513 3.439 151 16.9 22:27 (180, 55)
Aug. 14 19 16.43 -0 1.3 2.587 3.451 143 16.9 21:44 (180, 55)
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Not recovered in this return yet. It will be getting brighter and higher after this. It is expected to be observable at 15.5 mag in good condition from autumn to winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 4 46.55 11 55.5 2.441 2.177 63 17.1 5:23 (222, 32)
Aug. 14 4 59.34 12 50.5 2.364 2.166 66 16.9 5:16 (220, 33)
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It was observed at 17 mag in summer and autumn in 2009. It will be observable again at 17 mag in good condition in summer and autumn also in 2010.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 2 57.87 22 28.3 2.436 2.569 85 17.1 5:23 (189, 32)
Aug. 14 3 5.09 22 46.9 2.366 2.586 90 17.1 5:16 (185, 32)
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Now it is 17.4 mag (July 11, C. Rinner, F. Kugel). It keeps 17 mag for a long time from 2009 to 2012. It is observable in good condition in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 2 27.26 21 16.9 8.113 8.227 92 17.2 5:23 (181, 34)
Aug. 14 2 24.96 21 19.6 7.980 8.218 100 17.2 4:57 (180, 34)
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Now it is 17.4 mag (July 20, 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)
Aug. 7 18 57.03 12 56.6 3.298 4.093 136 17.3 21:52 (180, 42)
Aug. 14 18 45.24 12 53.4 3.349 4.077 130 17.3 21:13 (180, 42)
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Now it is 19.3 mag (July 21, W. Hasubick). It will be observable at 17 mag in good condition from autum to winter. But actually, it is much fainter than expected.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 7 2 27.10 32 19.0 2.210 2.421 89 17.6 5:23 (181, 23)
Aug. 14 2 33.77 34 27.8 2.134 2.420 93 17.5 5:05 (180, 21)
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