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Brightening rapidly. Marco Goiato reported it was 9.6 mag visually on June 30. It will approach to the sun down to 0.12 A.U. on July 14. In the Southern Hemisphere, it becomes unobservable temporarily in mid July, but it will be observable in good condition in the evening sky after the perihelion passage. In the Northern Hemisphere, it is not observable now, but it will appear in the evening sky at 8 mag in late July. Then it keeps observable while fading rapidly in the evening low sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 7 23.05 21 7.8 1.136 0.129 2 2.3 5:36 (255,-15)
July 21 9 0.95 30 29.7 1.003 0.291 16 6.3 18:39 (119,-12)
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Now it is so bright as 11.1 mag (July 5, Marco Goiato). It is expected to be bright as 9 mag from 2012 to 2013. In the Northern Hemisphere, it keeps observable in good condition for a long time until 2012 autumn when the comet brightens up to 10 mag. In the Southern Hemisphere, it is hardly observble before the perihelion passage. But it becomes observable in good condition since 2013 after the perihelion passage.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 14 3.83 39 19.7 2.787 2.828 81 11.2 18:35 (180, 16)
July 21 14 5.71 36 32.1 2.783 2.768 78 11.1 18:39 (173, 18)
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It kept as bright as 6-7 mag for a long time from 2011 summer to 2012 spring. Now it is fading. But it is bright as 10.6 mag still now (June 16, Carlos Labordena). However, it will be unobservable soon also in the Southern Hemisphere. It will appear in the morning sky again at 12.5 mag in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 9 21.53 16 4.9 3.902 3.021 25 11.2 18:35 (114, 6)
July 21 9 25.94 14 43.3 4.019 3.089 20 11.4 18:39 (109, 1)
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Now it is bright as 12.4 mag (June 24, Chris Wyatt). It is expected to be observable at 11-13 mag for a long time from 2012 summer to 2013 summer. It will be observable in excellent condition in the Southern Hemisphere. But it is not observable until 2013 January in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 4 37.90 -58 49.1 2.179 2.377 88 12.0 5:36 (321, 48)
July 21 5 12.34 -62 47.8 2.111 2.339 89 11.8 5:33 (327, 46)
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Brightening rapidly. It has already brightened up to 14.5 mag (June 18, Michael Jager). It has a large faint coma of 1.5 arcmin. It is expected to reach up to 10 mag in August. It keeps observable in the morning sky all through this apparition, although it locates somewhat low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 3 16.25 26 37.9 1.098 1.035 58 12.8 5:36 (211, 21)
July 21 3 57.33 26 55.6 1.099 0.995 55 12.2 5:33 (214, 19)
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It is expected to be a great comet of -1 mag in 2013 spring. Now it is 12.0 mag (July 6, Man-To Hui). Brightening faster than originally expected. In 2012, it keeps observable until summer while brightening gradually. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 15 17.37 -25 10.5 3.333 3.960 121 12.6 19:46 (180, 80)
July 21 15 11.86 -25 3.3 3.356 3.878 113 12.5 19:13 (180, 80)
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It brightened much faster than expected. Now it is so bright as 10.9 mag (June 14, Juan Jose Gonzalez). In the Northern Hemisphere, it keeps observable at 12-13 mag in good condition until early 2013. Although it becomes extremely low in August, it will be getting higher again in the morning sky after September. In the Southern Hemisphere, it is not observable until late 2012.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 9 8.65 61 42.2 2.765 2.140 43 12.7 18:35 (150,-23)
July 21 9 17.64 58 35.9 2.807 2.138 40 12.7 18:39 (146,-24)
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Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. Now it is 11.9 mag (May 29, Marco Goiato). It has already turned to be stellar.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 16 3.44 -25 2.9 1.660 2.458 131 12.9 20:33 (180, 80)
July 21 16 3.41 -25 34.1 1.731 2.461 125 13.0 20:05 (180, 81)
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Now it is bright as 12.1 mag (June 14, Juan Jose Gonzalez). It keeps 13-14 mag and observable in good condition until September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 15 48.95 -12 4.1 4.518 5.175 125 13.6 20:18 (180, 67)
July 21 15 41.99 -12 4.7 4.637 5.182 117 13.7 19:43 (180, 67)
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Now it is bright as 12.8 mag (June 15, Sandor Szabo). It keeps bright as 13-14 mag for a long time after this until 2013. It is not observable in the Northern Hemisphere, but it is observable in good condition in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 4 45.98 -52 25.2 5.680 5.640 82 13.7 5:36 (312, 48)
July 21 4 50.18 -52 30.5 5.668 5.653 84 13.7 5:33 (312, 51)
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This comet brightened up to 10 mag in outburst in 1995, however, it became lost after that. The condition of this apparition is bad. It is not observable around the perihelion passage. Maybe it can be recovered after summer when it appears in the morning sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 5 25.11 13 57.3 2.540 1.756 31 13.8 5:36 (244, 11)
July 21 5 42.19 13 54.1 2.554 1.804 34 13.9 5:33 (243, 13)
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Now it is 13.9 mag (Mar. 26, Jakub Cerny). It is expected to be 13 mag and will be observable in good condition in 2013. It keeps observable for a long time 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)
July 14 22 55.13 56 50.1 6.193 6.292 90 13.9 3:27 (180, -2)
July 21 22 46.18 57 8.3 6.102 6.275 95 13.9 2:51 (180, -2)
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Now it is visible visually at 11.7 mag (June 16, Carlos Labordena).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 12 13.80 -10 26.7 6.427 6.254 75 14.0 18:35 (127, 55)
July 21 12 16.67 -10 38.5 6.531 6.253 69 14.0 18:39 (119, 50)
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Now it is so bright as 11.6 mag (June 14, Juan Jose Gonzalez). Although it was extremely faint as 20.5 mag at the recovery in 2010 autumn, it brightened rapidly. It will keep 12-14 mag and observable in good condition for a long time from 2012 to 2013. But it locates somewhat low in the Northern Hemisphere in 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 13 6.20 5 40.6 3.049 3.067 81 14.4 18:35 (158, 47)
July 21 13 11.47 4 27.8 3.127 3.055 76 14.4 18:39 (149, 46)
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It kept as bright as 11-12 mag for a long time from 2011 autumn to 2012 spring. It is not observable now. But it will appear in the morning sky again at 15 mag in autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 7 24.35 17 37.5 3.487 2.475 4 14.4 5:36 (258,-14)
July 21 7 37.91 17 4.3 3.511 2.505 6 14.5 5:33 (257,-11)
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Peculiar asteroid moving along an orthogonal orbit. Bright as 14.6 mag (July 13, La Sagra Sky Survey). It keeps 14.5-15 mag until mid August. It moves northwards rapidly and keeps observable in excellent condition in the Northern Hemisphere. In the Southern Hemisphere, it will be extremely low after August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 23 42.81 11 44.1 0.626 1.368 110 14.7 4:16 (180, 44)
July 21 22 56.62 23 29.0 0.591 1.401 118 14.5 3:03 (180, 32)
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It was expected to brighten up to 14 mag from May to July. But actually, it has not been observed since late January. Michael Mattiazzo reported it was not detected, fainter than 17.0 mag, on June 10. In the Southern Hemisphere, it will be getting higher gradually after this. It will be hardly observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 11 24.62 -27 41.2 1.061 1.256 74 14.6 18:35 ( 92, 55)
July 21 11 57.33 -21 34.6 1.230 1.318 71 15.1 18:39 (101, 53)
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Now it is 16.1 mag (June 22, A. Diepvens). It is expected to brighten up to 13.5 mag from summer to autumn. But actually, it is fainter than this ephemeris recently. It keeps observable for a long time until December. It keeps locating low in the evening after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 12 0.16 25 38.3 1.970 1.713 60 14.8 18:35 (150, 23)
July 21 12 14.25 23 42.5 1.947 1.651 57 14.6 18:39 (145, 23)
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First return of a new periodic comet which brightened up to 14 mag in 2005. It was recovered as bright as predicted. Now it is 15.7 mag (July 1, Jakub Cerny). It is expected to brighten up to 13 mag from summer to autumn, and will be observable in excellent condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 0 40.66 -6 1.4 1.044 1.631 104 15.1 5:12 (180, 61)
July 21 0 53.43 -3 21.1 0.974 1.603 107 14.8 4:57 (180, 58)
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Now it is 15.9 mag (June 2, K. Hills). In the Southern Hemisphere, it will be observable at 15-16 mag in good condition for a long time until 2013 summer. It is not observable at all in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 19 45.86 -79 20.6 3.264 3.903 122 15.0 0:21 ( 0, 46)
July 21 19 16.51 -80 39.8 3.295 3.899 119 15.0 23:16 ( 0, 44)
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Now it is 15.8 mag (June 30, Jakub Cerny). After this, it will be observable in good condition in the Southern Hemisphere while fading gradually. It will locate somewhat low in the Northern Hemisphere. In 2011, some visual observers reported it was very bright as 10-12 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 23 17.64 -19 57.0 2.550 3.276 128 15.3 3:50 (180, 75)
July 21 23 17.63 -21 5.9 2.534 3.326 134 15.3 3:22 (180, 76)
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Now it is 15.8 mag (June 10, K. Hills). It keeps observable in good condition at 14-15 mag for a long time until winter. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 23 42.20 35 57.9 3.169 3.457 97 15.4 4:14 (180, 19)
July 21 23 45.63 36 55.4 3.070 3.431 102 15.3 3:50 (180, 18)
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It has brightened rapidly, and it reached up to 15.0 mag (July 8, Katsumi Yoshimoto). Now it is approaching to the earth down to 0.17 A.U., and moving northwards very quickly. Now it is observable in excellent condition. It keeps observable in good condition after this in the Northern Hemisphere. In the Southern Hemisphere, it keeps excellent condition until July. It keeps observable also after that, but locates somewhat low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 18 51.22 -1 6.1 0.175 1.180 156 15.4 23:21 (180, 55)
July 21 19 1.07 12 57.9 0.194 1.177 143 15.6 23:03 (180, 41)
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It was observed at 12.5 mag on Apr. 1, as bright as expected (Michael Jager). Now it is 14.0 mag (Apr. 26, Michael Jager). In the Northern Hemisphere, it had been locating extremely low in the morning until June, but it will be observable at high location after this. In the Southern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 4 36.19 45 31.9 3.395 2.745 43 15.7 5:36 (214, -4)
July 21 4 48.82 45 53.9 3.414 2.818 46 15.9 5:33 (212, -3)
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Now it is 16.5 mag (June 14, L. Arnold). It is expected to approach to the earth and to be observable at 9-10 mag in good condition in winter. The condition is good in the Northern Hemisphere. It locates low in the Southern Hemisphere, and will be unobservable after summer. But it will become observable in good condition after 2013 January.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 17 20.06 46 56.8 1.847 2.327 105 16.0 21:47 (180, 8)
July 21 16 55.35 47 57.3 1.839 2.248 99 15.8 20:55 (180, 7)
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The condition of this apparition is bad, and it was not observable around the perihelion passage. Now it is 15.7 mag (June 30, Jakub Cerny). It will be fading after this, and will be fainter than 18 mag in late October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 1 53.11 2 34.6 2.294 2.421 84 16.1 5:36 (199, 51)
July 21 1 58.73 2 56.3 2.244 2.460 89 16.2 5:33 (192, 51)
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Now it is 15.5 mag (June 8, Catalina Sky Survey). It tends to brighten after the perihelion passage. It keeps observable at 16-17 mag from 2012 to 2013. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 16 4.89 -17 19.9 2.357 3.117 130 16.8 20:34 (180, 72)
July 21 16 4.84 -17 44.8 2.431 3.117 124 16.8 20:07 (180, 73)
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It brightened up to 10 mag from autumn to winter in 2011. Now it is appearing in the morning sky again in the Southern Hemisphere. It has already faded down to 16.6 mag (June 30, Jakub Cerny). It keeps observable in good condition while fading graudlaly after this. It will be hardly observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 4 46.74 -19 9.2 4.465 4.017 57 16.8 5:36 (267, 39)
July 21 4 51.04 -20 35.5 4.449 4.076 62 16.9 5:33 (266, 44)
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Now it is 16.6 mag (June 12, Catalina Sky Survey). It keeps observable at 17 mag for a long time from 2011 to 2013. In 2012, it keeps observable in good condition until early September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 14 21.25 7 48.7 5.406 5.636 97 17.2 18:50 (180, 47)
July 21 14 17.33 7 29.6 5.532 5.640 90 17.2 18:39 (173, 47)
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Now it is 18.1 mag (June 24, K. Hills). It keeps 17 mag for a long time from 2009 to 2013.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 23 28.61 14 27.9 7.944 8.380 112 17.2 4:01 (180, 40)
July 21 23 25.07 14 23.6 7.850 8.393 119 17.2 3:30 (180, 41)
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Hidetaka Sato observed it at 18.4 mag on July 15. It will approach to the earth down to 0.4 A.U., and it is expected to be observable in good condition as bright as 15 mag in September and October. Now it locates very high in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 0 15.97 -24 59.3 0.947 1.665 115 17.6 4:47 (180, 80)
July 21 0 25.64 -23 14.8 0.867 1.627 119 17.3 4:30 (180, 78)
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Now it is 17.2 mag (June 5, A. Diepvens). It will brighten up to 15 mag from autum to winter. In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere, except for 2013 spring, but the comet locates extremely low only.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 16 32.18 78 10.9 2.970 2.911 76 17.5 20:57 (180,-23)
July 21 15 45.62 78 1.1 2.953 2.865 75 17.4 19:43 (180,-23)
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Now it is 17.1 mag (June 4, A. Diepvens). It is expected to brighten up to 10 mag from winter to spring in 2013. In the Northern Hemisphere, it keeps observable in good condition until 2013 April. It is not observable now in the Southern Hemisphere. It will become observable after 2013 April, but it keeps locating low.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 0 43.78 77 33.8 4.156 3.953 71 17.6 5:15 (180,-23)
July 21 0 56.23 79 4.6 4.060 3.885 72 17.4 5:00 (180,-24)
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Now it is 17.4 mag (June 12, L. Elenin). Now it is brightest. It will be fainter than 18 mag very soon.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 18 45.60 33 38.9 2.382 3.062 123 17.7 23:12 (180, 22)
July 21 18 23.70 31 30.8 2.397 3.070 122 17.8 22:23 (180, 24)
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Now it is 17.9 mag (May 30, K. Hills). It will brighten up to 15.5 mag in 2013 spring. In the Southern Hemisphere, it keeps observable in good condition while the comet will be brightening gradually. In the Northern Hemisphere, it is not observable until 2013 spring.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 19 26.24 -77 18.4 3.751 4.406 124 17.8 0:03 ( 0, 48)
July 21 18 34.08 -77 7.9 3.738 4.367 122 17.8 22:33 ( 0, 48)
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Now it is 18.1 mag (June 18, Hidetaka Sato). It is observable at 18 mag in good condition from June to July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
July 14 16 44.55 -8 48.2 1.304 2.163 137 17.9 21:14 (180, 64)
July 21 16 44.01 -10 0.9 1.339 2.149 131 18.0 20:46 (180, 65)
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