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Brightening pace became slow and kept around 6.5 mag since early March. In the Northern Hemisphere, it will not be observable soon. In the Southern Hemisphere, it is not observable until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 0 24.45 26 6.7 1.536 0.714 22 6.5 48.9 149.4 4:05 (240, 4)
Apr. 19 0 36.92 21 13.0 1.588 0.723 19 6.6 48.3 149.7 3:54 (245, 1)
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Only observable in the Southern Hemisphere. No observations have been reported since Mar. 8 when it was 5.3 mag. Fading very slowly. It was still 7.7 mag in early April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 2 56.73 -20 8.2 2.120 1.453 37 8.5 36.1 71.7 19:57 ( 76,-15)
Apr. 19 3 12.66 -18 54.9 2.274 1.587 36 8.9 31.8 72.5 20:04 ( 80,-19)
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It turns to fade after this, and will be fainter than 13 mag in June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 11 1.11 24 42.8 1.483 2.284 132 11.3 23.8 190.3 21:39 ( 0, 79)
Apr. 19 10 59.70 22 0.6 1.567 2.320 127 11.4 22.9 183.3 21:11 ( 0, 77)
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It will be observable in good condition at 11-12 mag in 2003 autumn again.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 5 39.57 10 2.7 3.232 2.934 63 12.1 9.7 314.4 19:57 ( 77, 35)
Apr. 19 5 36.80 10 48.2 3.342 2.913 56 12.1 7.8 322.2 20:04 ( 84, 27)
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It is observable at 12.5 mag for long time from April to August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 18 41.37 -24 44.3 2.036 2.453 102 13.0 14.5 103.5 4:05 (340, 28)
Apr. 19 18 48.13 -25 9.1 1.952 2.450 107 12.9 12.7 107.2 3:54 (343, 28)
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It passed the perihelion on Feb. 19 and expected to be fading now. But it may be brighter after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 2 43.32 28 15.4 2.510 1.690 27 13.4 44.1 70.6 19:57 (118, 10)
Apr. 19 3 5.53 29 50.7 2.557 1.718 26 13.8 43.4 72.8 20:04 (121, 8)
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It was observed visually at around 13 mag these days.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 15 42.42 -21 57.8 1.359 2.244 143 13.5 4.2 245.1 2:24 ( 0, 33)
Apr. 19 15 39.80 -22 7.7 1.327 2.257 150 13.4 6.6 260.7 1:54 ( 0, 33)
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Appearing very low sky in the morning. It will be higher than 20 deg in May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 22 25.26 -7 27.2 6.410 5.764 46 13.7 10.3 63.9 4:05 (285, 7)
Apr. 19 22 29.50 -6 55.8 6.326 5.763 52 13.7 9.8 63.2 3:54 (286, 10)
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Not observable. It will appear at dawn in June at 15.5 mag, then it will be fading.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 23 59.03 -2 40.6 2.852 1.969 23 13.8 34.0 68.6 4:05 (267, -9)
Apr. 19 0 13.60 -1 15.3 2.861 2.007 25 13.9 32.9 68.7 3:54 (266, -7)
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It became brighter than expected after the perihelion passage, and it was observed visually around 13 mag in March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 11 13.57 18 4.6 1.240 2.103 139 13.8 2.8 156.7 21:52 ( 0, 73)
Apr. 19 11 14.72 17 40.9 1.314 2.130 132 14.0 5.5 139.4 21:26 ( 0, 73)
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Getting brighter more slowly than expected, and it is still 15 mag. It may become only 10 mag in autumn at best. In the Northern Hemisphere, it will observable only until July, when it may be still 12 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 14 42.64 42 16.6 1.963 2.677 125 14.2 34.4 285.5 1:25 (180, 83)
Apr. 19 14 20.06 43 5.3 1.877 2.592 125 14.0 38.0 277.3 0:36 (180, 82)
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It is observable in good condition at 14-15 mag until autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 19 4.60 41 22.0 5.316 5.363 87 14.2 14.8 13.4 4:05 (245, 69)
Apr. 19 19 6.39 43 2.3 5.288 5.376 89 14.2 14.4 8.9 3:54 (238, 72)
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It will reach to 1 mag in 2004 spring. In the Northern Hemisphere, it is not observable until that time.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 2 22.16 -32 36.6 5.860 5.181 43 14.5 9.6 75.8 19:57 ( 68,-28)
Apr. 19 2 27.46 -32 22.1 5.782 5.114 44 14.4 10.0 79.9 20:04 ( 72,-34)
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It had brightened very rapidly since September and reached to 15 mag in late November. On the contrary, it has been at 15.5 mag for four months after that. It is only observable until late May. It is not observable around the perihelion passage.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 5 3.10 21 6.9 2.645 2.229 55 14.9 24.3 81.6 19:57 ( 94, 33)
Apr. 19 5 15.50 21 29.9 2.674 2.189 51 14.8 25.6 83.1 20:04 ( 97, 29)
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Although it had been fading slowly until early March, it got diffused and faded rapidly after that. It is already very hard to catch even with CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 5 42.34 -5 2.2 1.885 1.751 66 14.9 38.2 56.0 19:57 ( 63, 26)
Apr. 19 5 56.29 -2 48.2 2.084 1.871 63 15.7 33.0 58.8 20:04 ( 69, 23)
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It will be observable at 14.5 mag for a long time from spring to autumn in the Southern Hemisphere. In the Northern Hemisphere, it locates very low in the morning until spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 18 38.17 -37 8.6 3.599 3.954 103 15.3 12.5 151.3 4:05 (345, 16)
Apr. 19 18 41.30 -38 27.8 3.480 3.930 109 15.2 12.5 158.6 3:54 (348, 15)
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It will keep 14-15 mag until the end of 2003. Recently it was reported 1 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)
Apr. 12 5 41.52 24 17.8 2.959 2.678 64 15.3 9.6 237.1 19:57 ( 92, 42)
Apr. 19 5 38.07 23 42.8 3.070 2.652 56 15.4 7.4 229.3 20:04 ( 97, 34)
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It will be 14 mag from spring to summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 16 14.69 -11 52.3 1.999 2.815 136 15.5 3.1 7.7 2:56 ( 0, 43)
Apr. 19 16 14.35 -11 29.9 1.915 2.788 143 15.4 3.8 331.0 2:28 ( 0, 43)
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It became a bit fainter after the perihelion passage.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 14 3.90 44 16.2 4.035 4.699 126 15.4 15.4 256.8 0:46 (180, 81)
Apr. 19 13 54.24 43 45.3 4.087 4.738 125 15.5 15.6 250.5 0:09 (180, 81)
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It is expected to be 1 mag in the southern sky in 2004 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 4 28.05 27 5.5 5.816 5.201 48 15.5 3.8 82.7 19:57 (104, 29)
Apr. 19 4 30.23 27 9.5 5.835 5.131 41 15.4 4.6 81.6 20:04 (108, 22)
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It keeps 16 mag until June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 12 56.36 37 38.9 5.624 6.357 133 16.1 8.2 249.5 23:34 (180, 87)
Apr. 19 12 51.94 37 15.4 5.695 6.389 130 16.1 8.2 242.5 23:02 (180, 88)
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As it is a very far object, it keeps 17 mag until 2004 summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 19 4.05 28 11.1 5.763 5.841 89 17.0 13.2 338.1 4:05 (281, 68)
Apr. 19 19 1.05 29 37.0 5.672 5.832 94 16.9 13.8 332.7 3:54 (282, 72)
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It has been observed as bright as 12.5 mag from January to mid February. However, it started fading rapidly in March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 9 58.46 -19 36.2 1.628 2.399 130 17.0 43.5 305.2 20:36 ( 0, 36)
Apr. 19 9 43.51 -16 53.9 1.803 2.475 121 17.6 33.3 309.4 20:04 ( 3, 38)
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Brightness change became a bit slower after the perihelion passage. It will be fainter than 18 mag soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 9 57.94 21 46.8 1.504 2.205 121 17.0 12.8 121.1 20:37 ( 0, 77)
Apr. 19 10 3.83 20 57.9 1.606 2.246 116 17.3 14.5 120.3 20:15 ( 0, 76)
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It will be fainter than 18 mag in May. Very diffused.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 10 56.74 16 2.8 1.908 2.727 136 17.2 5.8 247.9 21:35 ( 0, 71)
Apr. 19 10 54.78 15 44.2 2.022 2.776 129 17.5 4.2 221.1 21:06 ( 0, 71)
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New comet. It will keep 17.5 mag until summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 17 16.87 52 44.0 3.742 4.054 100 17.4 6.5 299.6 3:58 (180, 72)
Apr. 19 17 11.85 53 2.7 3.708 4.046 102 17.4 7.6 286.2 3:26 (180, 72)
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It will be fainter than 18 mag in May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 12 9 9.35 23 22.8 5.360 5.795 111 17.6 3.4 20.4 19:57 ( 10, 78)
Apr. 19 9 10.23 23 43.2 5.489 5.819 104 17.6 3.5 40.6 20:04 ( 42, 75)
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