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It has been brightening in rapid pace since mid December, and already reached to 7.5 mag. It will be 0 mag in the southern sky in spring. In the Northern Hemisphere, it is getting lower in the evening sky after this, and will be unobservable in early March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 0 30.96 18 54.7 1.837 1.796 72 7.6 22.2 227.6 18:47 ( 74, 53)
Jan. 31 0 23.86 17 18.0 1.896 1.692 62 7.4 18.0 225.0 18:53 ( 80, 44)
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It is expected to be 2 mag in spring. In the Southern Hemisphere, it keeps observable in good condition until that time. On the other hand, 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)
Jan. 24 23 4.87 -70 37.6 2.413 2.043 56 9.2 10.3 6.2 18:47 ( 18,-23)
Jan. 31 23 7.46 -69 29.2 2.330 1.956 55 8.9 9.7 16.2 18:53 ( 21,-25)
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In the Northern Hemisphere, it is not observable until when it becomes fainter than 18 mag. In the Southern Hemisphere, it appears in the very low sky at dawn in late February, but it will be fainter than 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 19 8.25 -27 39.8 1.555 0.699 18 10.8 57.3 85.6 5:36 (298, -8)
Jan. 31 19 36.30 -26 56.6 1.684 0.825 19 12.1 50.4 81.8 5:33 (297, -9)
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Not obesrvable. In the Northern Hemisphere, it will appear at dawn at 12.5 mag. However, because it had been fading since the discovery although it was coming closer to the Sun, the brightness in May is quite uncertain. Then it keeps low until autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 22 2.97 -21 24.4 2.845 1.983 23 12.5 33.4 42.3 18:47 ( 64, 0)
Jan. 31 22 14.32 -18 28.5 2.821 1.923 19 12.5 34.5 42.4 18:53 ( 69, -2)
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It will be observable at 13 mag in the evening sky until April. It is already as bright as 12.5 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 0 48.13 13 30.6 1.661 1.668 73 12.6 35.7 86.5 18:47 ( 62, 54)
Jan. 31 1 5.58 13 47.8 1.697 1.647 70 12.6 37.1 85.7 18:53 ( 67, 51)
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It is expected to be 12 mag in March. But the recent brightening is slow. In the Northern Hemisphere, it locates 30 deg high, not so high in the south.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 14 33.02 -17 50.5 2.187 2.265 81 13.0 21.6 230.4 5:36 (346, 36)
Jan. 31 14 23.28 -19 30.4 2.020 2.255 90 12.8 27.4 237.3 5:33 (356, 35)
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It start fading in December. It will be too low in the evening sky at 14 mag in March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 0 39.42 8 45.4 3.661 3.438 69 13.1 3.6 276.7 18:47 ( 59, 49)
Jan. 31 0 38.16 8 50.8 3.831 3.478 61 13.3 2.1 301.4 18:53 ( 67, 42)
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No evident activity had been observed since October. Now it is faint.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 22 48.30 -2 15.1 6.453 5.729 39 13.7 11.0 67.5 18:47 ( 72, 21)
Jan. 31 22 53.14 -1 44.7 6.521 5.729 33 13.8 11.4 67.1 18:53 ( 77, 15)
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It will be 6.5 mag in the southern sky from autumn to winter in 2004. It becomes low in January, but then it will become higher soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 19 44.29 15 34.8 4.515 3.766 36 14.0 8.5 79.4 5:36 (257, 9)
Jan. 31 19 48.32 15 48.9 4.431 3.691 36 13.9 8.7 73.3 5:33 (260, 14)
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It will be observable in good condition at 14 mag to April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 14 26.16 -3 58.7 1.541 1.796 87 14.1 33.3 94.7 5:36 (345, 50)
Jan. 31 14 41.36 -4 13.1 1.485 1.798 91 14.0 31.8 92.6 5:33 (348, 50)
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It was observed as 16.1 mag on Dec. 31, 1.5 mag fainter than expected. Although it had been expected to reach to 10 mag in spring, it may be 12.5 or 14 mag at best. It is observable in good condition in the Southern Hemisphere. But in the Northern Hemisphere, it keeps locating lower than 15 deg until June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 17 24.44 -23 15.2 2.212 1.612 41 14.4 46.0 96.0 5:36 (310, 12)
Jan. 31 17 48.07 -23 42.0 2.143 1.575 43 14.1 47.2 93.7 5:33 (311, 12)
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Appearing at dawn and observed as bright as expected. It is fading out gradually after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 17 20.39 -20 43.7 2.575 1.966 42 14.1 32.1 93.6 5:36 (309, 15)
Jan. 31 17 36.06 -20 54.2 2.558 2.004 46 14.2 30.7 92.0 5:33 (311, 16)
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It is observable in good condition at 15 mag until April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 13 19.02 10 38.0 1.637 2.159 108 15.0 12.9 102.0 5:09 ( 0, 66)
Jan. 31 13 24.32 10 22.2 1.576 2.169 113 15.0 9.9 100.7 4:46 ( 0, 65)
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Not yet recovered in this return. At the previous appearance, it brightened after the perihelion passage and reached to 10 mag. If it behaves so again, it may brighten after the perihelion passage on Jan. 9 and reach to 13 mag in March. However, it keeps locating very low 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)
Jan. 24 23 7.75 -10 52.8 1.988 1.399 40 15.4 52.1 74.0 18:47 ( 61, 19)
Jan. 31 23 31.39 -9 8.4 2.020 1.411 39 15.1 52.0 72.9 18:53 ( 64, 18)
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Not observable. It becomes observable again at 15.5 mag after June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 22 0.68 -20 35.1 3.758 2.879 23 15.2 24.9 68.9 18:47 ( 64, 0)
Jan. 31 22 12.17 -19 31.6 3.810 2.899 19 15.3 24.8 68.4 18:53 ( 68, -3)
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Now it is much brighter than expected, around 15.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 6 36.70 8 53.7 2.785 3.685 152 16.0 6.4 286.1 22:23 ( 0, 64)
Jan. 31 6 34.12 9 7.6 2.849 3.704 145 16.1 5.2 294.7 21:53 ( 0, 64)
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It will get fainter on and on after this and be too low in the evening sky at 18 mag in March. It seems to be fading much faster than expected recently.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 2 4.52 0 13.9 1.815 2.002 85 16.2 24.8 146.0 18:47 ( 23, 53)
Jan. 31 2 11.20 -1 54.9 1.972 2.043 79 16.5 22.1 138.1 18:53 ( 32, 48)
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It will be observable around 16 mag until March in the northern sky.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 22 26.10 71 3.3 2.640 2.865 92 16.2 34.0 93.4 18:47 (157, 40)
Jan. 31 23 14.28 70 30.3 2.666 2.867 91 16.2 34.4 100.7 18:53 (156, 41)
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It is expected to be 5 mag in 2005 spring. Until that time, it keeps observable in the Northern Hemisphere, which the comet will be getting brighter gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 5 49.01 78 2.2 5.059 5.597 118 16.5 10.7 258.1 21:35 (180, 47)
Jan. 31 5 26.98 77 39.6 5.041 5.531 115 16.4 10.2 246.5 20:45 (180, 47)
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It will be fading slowly and become fainter than 18 mag in April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 12 10.70 1 3.6 1.813 2.471 121 16.6 4.1 40.3 4:01 ( 0, 56)
Jan. 31 12 11.27 1 30.4 1.765 2.499 128 16.6 4.5 357.3 3:34 ( 0, 56)
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It is observable around 17 mag until spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 8 10.13 18 26.9 3.128 4.111 176 16.6 11.3 312.3 0:01 ( 0, 73)
Jan. 31 8 6.08 19 19.6 3.151 4.123 169 16.6 10.9 313.0 23:25 ( 0, 74)
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It will be observable until March when it will be fainter than 18 mag. It was a bit brighter than this ephemeris recently.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 10 23.10 48 22.7 3.263 4.086 142 16.9 10.2 295.9 2:14 (180, 77)
Jan. 31 10 16.36 48 49.4 3.308 4.149 144 17.0 10.4 287.8 1:39 (180, 76)
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Appearing at dawn. It keeps 17 mag until early summer, and observable in good condition brighter than 18 mag until October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 18 29.80 17 58.1 6.250 5.617 46 17.0 13.8 56.5 5:36 (265, 26)
Jan. 31 18 35.36 18 53.6 6.233 5.643 49 17.0 13.8 53.4 5:33 (267, 30)
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It keeps 17 mag until July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 17 2.41 36 48.2 6.003 5.799 73 17.0 9.1 12.4 5:36 (253, 51)
Jan. 31 17 3.30 37 53.7 5.947 5.807 77 17.0 9.9 6.3 5:33 (252, 56)
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Unusual minor planet with a period of 55 years. It reaches to 17 mag in February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 9 45.79 22 34.3 1.393 2.343 160 17.4 19.6 357.9 1:36 ( 0, 77)
Jan. 31 9 45.02 24 54.6 1.352 2.319 165 17.3 20.5 353.8 1:08 ( 0, 80)
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It will be fainter than 18 mag in early February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 1 38.87 39 48.9 1.567 1.913 94 17.3 52.0 136.4 18:47 (112, 74)
Jan. 31 1 58.90 35 41.7 1.691 1.958 90 17.6 46.0 135.3 18:53 ( 98, 71)
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It is observable in good condition at 17.5 mag until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 24 13 54.39 12 3.3 7.563 7.802 100 17.5 0.5 38.9 5:36 (355, 67)
Jan. 31 13 54.32 12 6.9 7.494 7.839 107 17.5 0.9 317.2 5:16 ( 0, 67)
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