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It is observable at 6 mag until early September. But it will be getting lower rapidly.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 13 30.87 17 59.5 1.715 1.430 56 6.4 42.6 211.5 20:22 ( 92, 29)
Aug. 21 13 21.12 13 54.7 1.793 1.356 48 6.3 38.2 208.4 20:11 ( 92, 22)
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It locates visible all night, though it is low in the morning still now. It keeps observable after this in the Northern Hemisphere. It has been fading slower than expected since June, and it was bright as 8.5 mag still in early August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 11 46.09 61 7.7 2.183 1.758 52 8.9 17.4 64.0 20:22 (146, 29)
Aug. 21 12 1.88 62 1.3 2.240 1.845 54 9.1 18.3 64.6 20:11 (147, 29)
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Not observable. It will appear at dawn in late October at 13.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 10 56.62 -8 19.4 2.937 2.125 30 11.1 11.2 107.0 20:22 ( 91,-17)
Aug. 21 11 1.58 -8 43.7 3.092 2.223 25 11.4 10.9 109.6 20:11 ( 93,-19)
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It keeps locating low in the morning sky until the end of August while being fading gradually. It will start to be higher after September, but when it will be fainter than 12 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 8 53.10 52 17.1 2.770 2.080 38 11.4 32.3 111.1 3:46 (215, 14)
Aug. 21 9 14.78 50 53.0 2.819 2.145 39 11.6 30.3 113.4 3:53 (218, 15)
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Fading now. It will be fainter than 13 mag in September. (944) Hidalgo will through the coma of this comet on Aug. 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 2 37.96 10 47.0 1.396 1.874 100 12.5 11.1 72.1 3:46 (318, 60)
Aug. 21 2 42.14 11 7.0 1.368 1.919 106 12.6 7.3 71.6 3:53 (331, 63)
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It turns to be in the evening sky after September, then it keeps good condition in the evening sky. It is extremely diffused, so it will be invisible visually soon. But it keeps observable for a long time with CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 20 22.29 -4 3.5 0.822 1.805 159 12.8 83.3 279.8 22:46 ( 0, 51)
Aug. 21 19 50.35 -2 41.0 0.975 1.901 146 13.7 56.7 279.7 21:47 ( 0, 52)
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The condition is worst in this return. It is not observable around the perihelion passage. It will appear at dawn in autumn, when it will already fade to 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 8 34.87 10 8.9 2.514 1.560 15 12.9 40.7 107.7 3:46 (250,-10)
Aug. 21 8 52.67 8 41.3 2.561 1.623 17 13.2 38.7 108.9 3:53 (254, -7)
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It was in outburst on Aug. 12, as bright as 12 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 0 29.65 12 18.0 5.028 5.724 129 13.2 3.1 280.0 2:59 ( 0, 67)
Aug. 21 0 27.96 12 19.9 4.950 5.724 136 13.2 4.0 270.1 2:30 ( 0, 67)
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It will be visible visually soon. It is observable in good condition as bright as 12 mag in autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 2 34.96 17 36.3 1.677 2.098 99 13.4 21.4 77.6 3:46 (310, 65)
Aug. 21 2 44.87 18 4.7 1.593 2.082 103 13.2 19.8 79.6 3:53 (322, 69)
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The brightening evolution is slower than usual. It will be October when it becomes visible visually. In the Northern Hemisphere, it keeps observable until 2005 spring when it reaches to 8 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 9 17.66 69 5.8 3.994 3.509 54 14.8 18.1 90.3 3:46 (200, 23)
Aug. 21 9 41.98 69 2.8 3.873 3.430 57 14.7 19.1 91.6 3:53 (200, 24)
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It brightened rapidly in July, and reached to 14.5-15.0 mag. In the Northern Hemisphere, it keeps to be locating only around 30 deg high.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 19 46.94 -24 35.3 1.399 2.345 152 14.7 9.7 215.6 22:13 ( 0, 30)
Aug. 21 19 44.64 -25 27.0 1.435 2.337 145 14.7 7.6 205.1 21:44 ( 0, 29)
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It will fade out gradually, and keeps observable brighter than 17 mag until the end of 2004.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 0 9.67 16 8.5 4.059 4.787 131 15.1 18.2 258.8 2:40 ( 0, 71)
Aug. 21 0 0.72 15 40.2 4.023 4.837 139 15.1 19.6 256.6 2:03 ( 0, 71)
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It is observable at 13.5 mag in good condition in October and November. No observation has been reported since 2003 December. It will through the coma of 88P/Howell on Aug. 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 2 38.53 10 2.1 2.091 2.492 101 15.5 16.4 26.2 3:46 (318, 59)
Aug. 21 2 41.48 11 48.6 1.965 2.453 106 15.3 16.5 18.0 3:53 (331, 64)
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It keeps around 16 mag until November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 1 44.52 -0 44.9 2.909 3.487 117 15.6 1.8 169.7 3:46 (348, 54)
Aug. 21 1 44.20 -0 59.4 2.844 3.508 123 15.6 2.9 215.2 3:46 ( 0, 54)
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It locates low in the evening sky until mid September, then it becomes unobservable for a while. But it will be observable again at 15 mag after next February for a long time.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 13 47.28 -1 57.9 3.260 2.966 64 15.8 19.1 124.7 20:22 ( 71, 22)
Aug. 21 13 54.85 -3 14.1 3.331 2.957 59 15.8 20.0 123.1 20:11 ( 72, 19)
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It is expected to be observable at 16 mag in good condition in autumn. But it was faint as 18.5 mag in late July. So it is probably 1.5 mag fainter than this ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 0 0.85 0 17.4 1.926 2.789 141 16.6 3.6 305.6 2:31 ( 0, 55)
Aug. 21 23 58.97 0 29.7 1.856 2.768 148 16.5 5.3 285.5 2:01 ( 0, 56)
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It is observable until November when it becomes fainter than 18 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 1 6.18 2 8.5 2.705 3.392 125 16.8 3.1 200.7 3:36 ( 0, 57)
Aug. 21 1 5.22 1 45.6 2.662 3.426 132 16.8 4.7 219.8 3:07 ( 0, 57)
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It will be 12-13 mag in winter, locating high in the evening sky. It keeps observable until that time in good condition while the comet is getting brighter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 2 57.24 7 13.7 2.421 2.742 97 17.1 13.3 74.8 3:46 (314, 54)
Aug. 21 3 2.96 7 36.7 2.295 2.701 102 16.8 11.9 74.9 3:53 (325, 58)
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It keeps 17 mag until September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 2 49.86 9 17.7 1.158 1.648 98 17.0 24.8 91.1 3:46 (315, 57)
Aug. 21 3 0.83 9 9.0 1.127 1.672 102 17.0 21.7 95.2 3:53 (324, 60)
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It is observable at 16.5 mag in good condition in autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 1 27.85 14 38.8 2.811 3.375 115 17.2 3.4 56.1 3:46 (352, 69)
Aug. 21 1 28.78 14 49.4 2.713 3.361 122 17.1 1.5 42.3 3:31 ( 0, 70)
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Although it was predicted to fade out quickly after the perihelion passage in June, it unexpectedly keeps 16.5-17.0 mag still in late July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 16 18.65 6 50.7 1.331 1.790 98 17.2 26.5 104.6 20:22 ( 43, 54)
Aug. 21 16 31.03 6 1.9 1.401 1.810 95 17.5 27.9 104.9 20:11 ( 44, 53)
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It will be fading slowly until November when it becomes fainter than 18 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 18 26.26 43 36.7 6.093 6.474 107 17.3 4.7 232.0 20:53 (180, 81)
Aug. 21 18 24.20 43 14.4 6.159 6.507 105 17.4 4.4 218.0 20:23 (180, 82)
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It will be brightening gradually after this, and reach to 15 mag in 2005 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 18 49.50 -3 20.1 3.700 4.500 137 17.4 21.7 264.5 21:15 ( 0, 52)
Aug. 21 18 39.82 -3 35.4 3.749 4.461 129 17.4 19.9 263.3 20:38 ( 0, 51)
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It keeps around 18 mag for a long time until 2005 summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 16 32.84 42 32.9 6.834 6.918 90 17.6 10.3 223.6 20:22 (121, 72)
Aug. 21 16 28.75 41 39.8 6.904 6.924 86 17.6 9.7 217.6 20:11 (116, 69)
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It keeps observable in good condition at 17 mag until 2005 spring. It will reach to 16 mag in 2006.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 5 37.63 39 0.7 7.331 6.839 57 17.7 8.7 65.1 3:46 (245, 39)
Aug. 21 5 42.26 39 26.8 7.207 6.808 62 17.7 8.3 62.8 3:53 (247, 45)
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It reaches to 17.5 mag in October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 14 3 5.07 25 24.6 3.771 3.914 90 17.8 8.8 109.9 3:46 (285, 65)
Aug. 21 3 9.00 25 1.0 3.679 3.924 96 17.8 7.8 118.5 3:53 (295, 71)
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