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Now it is bright as 8.2 mag (Sept. 16, Juan Jose Gonzalez). It is expected to brighten up to 7.5 mag in October. In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it is getting lower gradually, and it will be unobservable for a long time after October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 4 3.96 20 15.6 0.886 1.552 110 8.1 4:24 (180, 35)
Sept.23 4 13.84 26 45.8 0.822 1.530 113 7.9 4:07 (180, 28)
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It brightened up to 7.1 mag from May to June (June 21, Juan Jose Gonzalez). Now it is fading. It has already faded down to 11.0 mag (Sept. 15, Chris Wyatt). In the Southern Hemisphere, it is observable in good condition after this. It will never be observable again in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 15 44.70 -49 0.0 2.091 2.065 74 10.4 19:15 ( 53, 53)
Sept.23 16 1.60 -50 40.7 2.207 2.120 71 10.7 19:21 ( 50, 50)
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It brightened up to 6.2 mag in April (Apr. 7, Juan Jose Gonzalez). Now it is fading. It has already faded down to 12.6 mag (Sept. 16, Carlos Labordena). It stays observable for a long time after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 3 58.60 23 11.2 1.665 2.230 110 11.1 4:19 (180, 32)
Sept.23 3 56.53 22 54.1 1.664 2.313 118 11.2 3:50 (180, 32)
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It brightened up to 10 mag from spring to summer. Now it is fading. It has already faded down to 12.5 mag (Sept. 15, Chris Wyatt). It is 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)
Sept.16 18 37.48 -36 21.1 1.203 1.748 104 12.0 19:15 ( 69, 86)
Sept.23 18 54.72 -35 38.5 1.283 1.775 101 12.2 19:21 ( 83, 83)
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Now it is 13.4 mag (Sept. 2, Toshiyuki Takahashi). It will stay bright as 10 mag for a long time from winter to next spring. In the Southern Hemisphere, it stays observable in good condition until next February. In the Northern Hemispehre, it stays observable for a long time after this until the comet fades out.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 5 31.75 -2 38.1 3.401 3.561 90 12.2 4:34 (214, 53)
Sept.23 5 34.27 -2 19.0 3.259 3.514 96 12.0 4:24 (208, 54)
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Now it is bright as 12.2 mag (Aug. 21, Juan Jose Gonzalez). It stays 12 mag until September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 6 59.84 11 33.0 1.483 1.456 68 12.2 4:34 (228, 29)
Sept.23 7 15.25 11 15.8 1.481 1.502 71 12.3 4:24 (228, 30)
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Now it is 17.5 mag (Aug. 6, Jean-Francois Soulier). It will pass the perihelion on Oct. 27. In the Southern Hemisphere, it stays observable while the comet will be brightening, until early October when the comet will brighten up to 9 mag. In the Northern Hemisphere, it is not observable at all in this apparition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 13 49.93 -59 30.8 1.068 1.156 67 13.6 19:15 ( 38, 36)
Sept.23 13 46.85 -55 16.3 1.048 1.018 59 12.9 19:21 ( 41, 30)
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Outburst occured on Aug. 27. Now it is very bright as 11.3 mag (Sept. 11, Marco Goiato).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 21 8.24 -14 41.5 4.994 5.819 141 13.2 21:26 (180, 70)
Sept.23 21 6.42 -14 45.3 5.068 5.818 134 13.3 20:57 (180, 70)
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Now it is bright as 13.5 mag (Aug. 14, Chris Wyatt). It was expected to brighten up to 12 mag in summer. But actually, it is fainter than expected. 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)
Sept.16 19 6.45 -22 1.7 1.372 1.985 112 13.5 19:25 (180, 77)
Sept.23 19 14.49 -21 5.6 1.437 1.984 107 13.6 19:21 (166, 76)
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Now it is 12.9 mag (Aug. 22, Marco Goiato). It is observable at 13-14 mag in good condition until autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 20 7.51 -5 42.1 1.987 2.727 128 13.7 20:24 (180, 61)
Sept.23 19 51.14 -7 57.1 2.120 2.733 117 13.8 19:41 (180, 63)
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Now it is 15.8 mag (Sept. 2, Ken-ichi Kadota). It will brighten very rapidly, and brighten up to 10 mag from October to December. It is observable in good condition in the Northern Hemisphere. It locates very low for a long time in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 8 4.88 21 11.2 1.781 1.444 54 14.4 4:34 (234, 12)
Sept.23 8 31.96 20 33.2 1.713 1.399 54 13.7 4:24 (236, 10)
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Now it is 14.8 mag (Aug. 21, Gabor Santa). In the Northern Hemisphere, it will brighten up to 14 mag from summer to winter, and it will be observable in excellent condition. It is not observable at all after this in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 22 34.65 70 12.8 2.767 3.199 106 13.8 22:49 (180,-15)
Sept.23 22 1.61 70 49.2 2.765 3.200 106 13.8 21:49 (180,-16)
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It brightened very rapidly from July to August. Now it is very bright as 14.0 mag (Sept. 15, Chris Wyatt). It is observable in excellent condition in the Southern Hemisphere. It stays low for a while in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 0 31.19 -35 43.7 1.907 2.787 144 14.8 0:53 ( 0, 89)
Sept.23 0 25.12 -36 14.5 1.887 2.758 143 14.6 0:19 ( 0, 89)
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Now it is 14.1 mag (Aug. 14, Chris Wyatt). It will be observable at 14 mag for a long time from 2017 to 2018. In the Southern Hemisphere, it will be unobservable in early October. It will be extremely low from November to December in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 16 8.56 20 42.7 4.227 3.978 68 14.6 19:15 (138, 21)
Sept.23 16 7.16 20 16.4 4.297 3.957 63 14.6 19:21 (131, 17)
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Now it is 13-13.5 mag (Aug. 18, Gabor Santa). It will be unobservable in late October in the Northerm Hemisphere, or in late November in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 16 25.75 -25 43.8 2.993 2.914 75 14.8 19:15 ( 95, 56)
Sept.23 16 34.73 -26 8.1 3.080 2.913 71 14.8 19:21 ( 91, 52)
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Now it is 15.0 mag (Aug. 18, Gabor Santa). It is expected to brighten up to 11-12 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition while the comet will be brightening gradually. In the Southern Hemisphere, it is not observable until 2018 October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 14 53.11 51 26.3 4.411 4.069 63 14.9 19:15 (146,-12)
Sept.23 14 53.44 50 29.6 4.384 4.020 62 14.8 19:21 (142,-15)
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Now it is 14.7 mag (Aug. 22, Kunihiro Shima). It is expected to brighten up to 9 mag in summer in 2018. In the Northern Hemisphere, it stays observable until 2018 summer while the comet will be brightening. In the Southern Hemisphere, it is hardly observable in 2017, but it will be observable in good condition in 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 17 3.33 33 45.7 4.177 4.157 81 14.9 19:15 (156, 16)
Sept.23 17 4.44 31 34.2 4.185 4.100 78 14.8 19:21 (148, 15)
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Now it is 15.3 mag (Aug. 22, Kunihiro Shima). It stays observable at 16 mag for a long time from 2017 to 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 2 6.51 25 16.5 3.579 4.336 133 15.1 2:28 (180, 30)
Sept.23 1 57.09 23 52.4 3.484 4.326 142 15.1 1:51 (180, 31)
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Now it is 15.7 mag (Sept. 13, Martin Masek). It will brighten up to 14.5 mag in winter. In the Southern Hemisphere, it stays observable in excellent condition until spring in 2018. In the Northern Hemisphere, it stays unobservable until 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 3 32.48 -80 21.7 2.039 2.390 97 15.3 3:51 ( 0, 45)
Sept.23 3 29.48 -80 47.6 2.025 2.346 95 15.2 3:21 ( 0, 44)
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Now it is 15.4 mag (Aug. 19, Gabor Santa). It stays observable at 16 mag unil the end of 2017.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 3 39.46 2 31.5 5.402 5.949 118 15.4 4:00 (180, 52)
Sept.23 3 39.35 2 6.3 5.343 5.976 125 15.4 3:33 (180, 53)
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Now it is 16.4 mag (Aug. 26, Toshiyuki Takahashi). It was observed at 17 mag in 2016. In 2017, it will be observable at 15.5 mag in good condition from summer to autumn. It is fainter than this ephemeris recently.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 1 38.71 17 19.2 2.003 2.874 143 15.6 2:00 (180, 38)
Sept.23 1 34.77 17 38.8 1.964 2.882 150 15.6 1:29 (180, 37)
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Now it is 15.4 mag (Sept. 2, Ken-ichi Kadota). It brightened rapidly. It is observable at 15 mag in autumn in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 4 54.46 26 53.0 1.494 1.909 97 15.8 4:34 (190, 27)
Sept.23 5 5.58 28 7.6 1.437 1.915 101 15.7 4:24 (189, 26)
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Now it is 15.5 mag (Aug. 9, Yuji Ohshima). It stays 16 mag for a long time until summer in 2018. In the Southern Hemisphere, it stays observable in excellent condition until autumn. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 17 15.78 -28 39.2 2.751 2.882 87 15.8 19:15 (100, 68)
Sept.23 17 24.37 -28 5.1 2.813 2.856 82 15.8 19:21 ( 96, 63)
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First return of a new periodic comet discovered in 2000. Now it is 16.3 mag (Aug. 26, Toshiyuki Takahashi). It will brighten rapidly, and it was expected to be observable at 15.5 mag in good condition from July to September. But actually, it is fainter than this ephemeris.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 1 5.42 -7 49.0 1.684 2.639 156 15.9 1:27 (180, 63)
Sept.23 0 59.92 -7 23.6 1.679 2.655 163 16.0 0:54 (180, 62)
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Now it is 18.5 mag (Aug. 13, Francois Kugel). It brightens rapidly, and brightens up to 11 mag from autumn to winter. It is observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 7 34.12 19 43.3 1.754 1.542 61 16.4 4:34 (229, 18)
Sept.23 7 57.92 19 20.4 1.689 1.510 62 16.0 4:24 (231, 17)
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Now it is 16.0 mag (Aug. 22, Kunihiro Shima). It stays 16 mag from 2016 to 2017. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 17 48.42 63 15.1 6.469 6.531 89 16.6 19:15 (172, -9)
Sept.23 17 50.87 62 42.2 6.486 6.545 88 16.6 19:21 (169,-10)
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It stays 16 mag for a long time from 2017 to 2018. It is observable in excellent condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 9 6.97 18 34.7 6.090 5.352 39 16.7 4:34 (245, 2)
Sept.23 9 9.66 19 2.5 5.998 5.347 45 16.7 4:24 (243, 5)
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Now it is 16.8 mag (Sept. 13, Martin Masek). Return of a new periodic comet which brightened up to 13 mag in 2004. It will be observable in excellent condition in autumn. It was expected to brighten up to 14 mag, if the comet is as bright as when it was discovered. But actually, it is much fainter than expected.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 2 42.34 1 46.4 0.886 1.734 132 16.8 3:03 (180, 53)
Sept.23 2 45.35 2 36.0 0.841 1.726 138 16.7 2:39 (180, 52)
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It will be observable at 16.5 mag in good condition in winter.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 8 22.48 13 44.1 3.205 2.651 48 17.0 4:34 (242, 14)
Sept.23 8 33.75 12 13.0 3.143 2.655 52 16.9 4:24 (242, 16)
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Now it is 17.1 mag (Sept. 2, Toshiyuki Takahashi). It is expected to brighten up to 13-14 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable until summer in 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 18 38.43 62 25.3 5.299 5.476 94 17.0 19:15 (178, -7)
Sept.23 18 32.92 60 39.0 5.266 5.430 94 17.0 19:21 (173, -6)
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Hilda-type minor planet, but the cometary activity was detected on July 3. Now it is bright as 16.2 mag (Aug. 22, Kunihiro Shima).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 20 51.73 -1 45.5 2.630 3.455 139 17.0 21:10 (180, 57)
Sept.23 20 50.81 -2 30.8 2.712 3.472 132 17.1 20:41 (180, 57)
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Now it is 17.9 mag (June 2, MASTER-OAFA Observatory). It will brighten up to 14 mag from autumn to winter in 2018, and it will be observable in excellent condition in the Northern Hemisphere. In 2017, it is observable at 17 mag in excellent condition in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 23 45.63 -46 20.5 3.213 4.001 136 17.0 0:07 ( 0, 79)
Sept.23 23 37.22 -46 12.6 3.200 3.959 133 17.0 23:26 ( 0, 79)
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Now it is 15.8 mag (Sept. 2, Ken-ichi Kadota). It is observable in excellent condition in the Southern Hemisphere. It will be getting higher gradually in the morning sky also in the Northern Hemisphere. It will fade out rapidly after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 21 7.46 -19 28.7 1.724 2.580 140 17.0 21:25 (180, 74)
Sept.23 21 5.88 -17 41.6 1.804 2.601 133 17.2 20:56 (180, 72)
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It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. It is observable in good conditioin in the Northern Hemisphere. It is not observable for a long time in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 6 42.64 67 44.6 9.101 9.000 81 17.1 4:34 (194,-17)
Sept.23 6 47.96 68 23.7 9.008 8.986 85 17.0 4:24 (193,-17)
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Now it is 18.0 mag (Aug. 22, Kunihiro Shima). In the Northern Hemisphere, it will be observable at 17 mag in excellent condition from autumn to winter. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 5 23.99 31 2.0 2.855 3.041 90 17.2 4:34 (196, 22)
Sept.23 5 30.15 31 33.3 2.774 3.051 96 17.2 4:24 (194, 22)
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It was observed at 17 mag in 2016. It stays 17 mag also in 2017. It is observable in good condition in the Northern Hemisphere. It locates very low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 6 47.05 33 0.0 3.055 2.930 73 17.4 4:34 (212, 13)
Sept.23 6 55.71 33 10.9 2.987 2.952 78 17.3 4:24 (211, 14)
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Now it is 19.3 mag (Aug. 23, Michael Jager). It is observable in good condition. But actually, it is much fainter than this ephemeris.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 18 47.15 14 0.2 0.593 1.307 106 17.3 19:15 (177, 41)
Sept.23 19 9.45 15 6.8 0.643 1.339 106 17.6 19:21 (174, 40)
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It brightened up to 11 mag from spring to summer in 2016. Now it is 17.4 mag (July 14, Ken-ichi Kadota). It stays observable for a long time after this, but it will be fainter than 18 mag in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 19 30.15 -21 4.7 3.054 3.634 117 17.6 19:48 (180, 76)
Sept.23 19 30.98 -21 7.4 3.182 3.667 111 17.8 19:22 (180, 76)
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Peculiar asteroid moving along a comet-like orbit. It is observable at 18 mag in good condition from August to September. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Sept.16 22 23.45 17 44.6 2.840 3.764 153 17.8 22:41 (180, 37)
Sept.23 22 20.15 17 29.0 2.864 3.765 149 17.8 22:10 (180, 37)
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