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It is observable at 6 mag until early September. But it will be getting lower rapidly. After that, it will appear at dawn at 5 mag in November and keep observable in good condition in the Southern Hemisphere. In the Norhtern Hemisphere, it will become visible in the morning low sky in latter Novemberk, but become unobservable soon, then keep unobservable until January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 13 6.65 6 36.5 1.931 1.221 33 6.1 32.0 203.9 19:49 ( 92, 8)
Sept.11 13 0.94 3 16.9 1.984 1.162 25 5.9 30.1 202.5 19:38 ( 93, 2)
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It locates visible all night in the northern sky. It keeps observable after this in the Northern Hemisphere. It has been fading slower than expected since June, and it was bright as 9 mag still in mid August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 12 38.13 63 54.2 2.328 2.019 59 9.4 20.5 65.8 19:49 (149, 30)
Sept.11 12 59.09 64 53.1 2.362 2.105 62 9.5 21.8 66.7 19:38 (150, 31)
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New comet. It will be getting brighter on and on after this, then it will reach to 4 mag locating high in the evening sky in December and January. In the Northern Hemisphere, it keeps observable in good condition for a long time while the comet is bright enough visible visually until 2005 October when it becomes faint as 14 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 4 25.82 -23 4.0 2.012 2.386 98 10.3 18.3 109.3 4:07 (338, 29)
Sept.11 4 34.36 -23 48.7 1.882 2.309 101 10.0 17.6 112.5 4:14 (344, 30)
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It will be getting higher after this, but getting fainter, too. However the fading is slow and it keeps 13 mag still in December. It passes across a barred spiral galaxy NGC 3198 on Sept. 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 9 51.59 48 3.9 2.909 2.276 42 11.9 26.4 116.4 4:07 (223, 18)
Sept.11 10 7.25 46 42.9 2.947 2.343 44 12.0 24.6 117.1 4:14 (226, 20)
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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)
Sept. 4 11 10.86 -9 38.9 3.358 2.415 17 12.0 10.2 114.3 19:49 ( 96,-25)
Sept.11 11 15.16 -10 9.1 3.470 2.509 14 12.2 9.9 116.6 4:14 (264,-26)
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Already bright as 12.5 mag visually. It is observable in good condition as bright as 11-12 mag until January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 3 2.37 18 39.2 1.436 2.055 113 12.8 16.0 85.1 4:07 (359, 74)
Sept.11 3 9.67 18 44.4 1.363 2.044 118 12.6 13.6 89.4 3:49 ( 0, 74)
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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)
Sept. 4 0 23.31 12 12.7 4.827 5.724 150 13.1 5.7 259.8 1:31 ( 0, 67)
Sept.11 0 20.48 12 3.9 4.783 5.724 157 13.1 6.4 256.5 1:00 ( 0, 67)
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New comet. It is observable at 12.5 mag in good condition from October to November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 2 39.58 5 46.9 1.633 2.329 121 13.7 21.7 341.7 3:46 ( 0, 61)
Sept.11 2 35.31 8 19.5 1.518 2.291 129 13.5 25.7 333.6 3:15 ( 0, 63)
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Not observed in this return yet. It will appear at dawn at 15 mag in October, then it will be fading gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 9 25.24 5 44.9 2.646 1.750 21 14.0 35.1 111.0 4:07 (262, -2)
Sept.11 9 40.15 4 17.1 2.682 1.813 24 14.3 33.4 111.9 4:14 (266, 1)
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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 visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 19 14.69 -1 10.4 1.337 2.089 125 14.0 24.6 279.6 20:18 ( 0, 54)
Sept.11 19 5.59 -0 46.6 1.533 2.182 116 14.7 15.5 280.4 19:42 ( 0, 54)
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The brightening evolution is slower than usual. In the Northern Hemisphere, it keeps observable until 2005 spring when it reaches to 8 mag. It keeps observable both in the evening and morning until December, however, it keeps locating low at 20-25 deg high.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 10 34.17 68 44.8 3.625 3.269 61 14.4 21.3 95.0 4:07 (202, 25)
Sept.11 11 1.99 68 27.5 3.498 3.187 63 14.2 22.5 97.1 4:14 (202, 25)
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Diffused. It keeps observable in good condition 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)
Sept. 4 2 45.16 11 24.4 1.315 2.011 119 14.3 0.7 284.5 3:52 ( 0, 66)
Sept.11 2 43.89 11 22.0 1.294 2.057 126 14.6 4.7 259.7 3:23 ( 0, 66)
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It is observable at 13.5 mag in good condition in October and November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 2 43.86 15 45.3 1.726 2.377 118 14.9 18.2 358.7 3:51 ( 0, 71)
Sept.11 2 42.84 17 57.9 1.616 2.341 124 14.7 20.1 348.9 3:22 ( 0, 73)
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It was observed at 15-15.5 mag, a bit fainter than this ephemeris in August. 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)
Sept. 4 19 44.18 -26 47.0 1.533 2.325 131 14.8 5.1 152.5 20:48 ( 0, 28)
Sept.11 19 46.17 -27 15.0 1.593 2.320 124 14.9 6.3 123.2 20:23 ( 0, 28)
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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)
Sept. 4 23 41.57 14 22.9 4.004 4.938 155 15.2 21.3 252.5 0:49 ( 0, 69)
Sept.11 23 31.80 13 35.4 4.023 4.988 161 15.3 21.5 250.6 0:12 ( 0, 69)
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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)
Sept. 4 1 40.80 -1 39.9 2.737 3.549 137 15.6 6.5 239.0 2:48 ( 0, 53)
Sept.11 1 37.79 -2 4.4 2.698 3.570 144 15.6 8.2 243.6 2:17 ( 0, 53)
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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)
Sept. 4 3 12.25 8 14.6 2.051 2.621 113 16.3 8.4 73.8 4:07 (354, 63)
Sept.11 3 15.59 8 30.0 1.935 2.582 119 16.0 6.3 71.3 3:55 ( 0, 64)
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It keeps observable at 16 mag in good condition 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)
Sept. 4 23 52.48 0 40.7 1.747 2.728 163 16.2 8.6 271.4 1:00 ( 0, 56)
Sept.11 23 48.16 0 40.5 1.711 2.709 170 16.2 9.8 268.6 0:28 ( 0, 56)
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It tends to become brightest after the perihelion passage. In this return, it will reach to 14 mag in 2005 February at the opposition. No observations have been reported since it appeared at dawn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 8 13.07 21 37.1 3.324 2.648 41 16.5 25.2 93.2 4:07 (258, 22)
Sept.11 8 25.57 21 26.3 3.263 2.649 45 16.5 24.8 93.7 4:14 (261, 26)
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It was observed about 1 mag brighter than expected. It will reach to 14.5 mag from January to March in the evening sky.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 1 24.94 -18 58.8 1.391 2.267 141 16.8 15.0 178.7 2:32 ( 0, 36)
Sept.11 1 24.42 -20 47.3 1.315 2.217 145 16.6 16.1 188.9 2:04 ( 0, 34)
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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)
Sept. 4 1 27.97 14 53.2 2.536 3.333 135 16.9 2.8 257.5 2:35 ( 0, 70)
Sept.11 1 26.22 14 45.8 2.461 3.319 142 16.8 4.7 251.5 2:06 ( 0, 70)
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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)
Sept. 4 1 0.75 0 46.1 2.604 3.494 147 16.9 8.0 233.3 2:08 ( 0, 56)
Sept.11 0 57.44 0 11.4 2.592 3.528 154 16.9 9.3 236.5 1:37 ( 0, 55)
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Appearing at dawn. It will reach to 9 mag in 2006 spring. In this season, it keeps observable until 2005 March when it becomes 15.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 5 59.23 -3 12.0 6.141 5.942 73 17.4 7.1 159.2 4:07 (303, 33)
Sept.11 6 0.18 -4 0.3 5.976 5.882 79 17.3 7.3 168.0 4:14 (311, 38)
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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 August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 16 57.37 4 18.8 1.546 1.855 90 17.3 30.0 104.2 19:49 ( 45, 51)
Sept.11 17 11.18 3 27.6 1.622 1.880 88 17.5 30.8 103.5 19:38 ( 45, 49)
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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)
Sept. 4 18 23.33 -4 9.4 3.889 4.383 112 17.4 15.6 260.7 19:49 ( 9, 50)
Sept.11 18 16.64 -4 27.1 3.974 4.344 104 17.4 13.4 259.2 19:38 ( 17, 49)
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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)
Sept. 4 18 22.01 42 19.3 6.302 6.573 101 17.5 4.4 189.2 19:49 (150, 81)
Sept.11 18 21.90 41 48.3 6.378 6.607 98 17.5 4.5 175.7 19:38 (134, 80)
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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)
Sept. 4 5 50.56 40 22.2 6.946 6.744 74 17.6 7.4 56.4 4:07 (248, 56)
Sept.11 5 54.16 40 51.5 6.811 6.713 80 17.5 6.9 52.1 4:14 (247, 62)
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It will be fainter than 18 mag in November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 3 17.58 8 22.4 1.076 1.730 112 17.5 14.8 108.3 4:07 (351, 63)
Sept.11 3 23.24 7 45.6 1.050 1.759 117 17.6 11.5 120.5 4:02 ( 0, 63)
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Not yet observed in this return. It will brighten very rapidly after this. It is expected to be visible visually at 11 mag from November to January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Sept. 4 6 19.32 17 53.5 1.916 1.787 67 18.0 38.8 87.7 4:07 (278, 43)
Sept.11 6 38.55 18 1.0 1.828 1.750 69 17.6 39.6 89.0 4:14 (280, 46)
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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)
Sept. 4 3 14.53 23 57.6 3.502 3.947 109 17.7 6.6 144.2 4:07 (344, 79)
Sept.11 3 16.07 23 17.3 3.419 3.960 115 17.6 6.6 160.3 3:55 ( 0, 78)
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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)
Sept. 4 16 22.90 39 51.7 7.047 6.939 79 17.7 8.5 205.3 19:49 (110, 62)
Sept.11 16 21.03 38 58.5 7.119 6.946 76 17.7 7.9 198.8 19:38 (109, 58)
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