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Recently it was reported 1 mag fainter than this ephemeris. It will be too low to observe soon. It will reach to 1 mag in late January, but it is too close to the sun at that time. It appears at dusk in March, then it slowly fades out. Southern people cannot see it until mid February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 18 29.30 24 25.7 0.981 0.794 47 5.9 122.4 133.2 5:38 (250, 14)
Jan. 11 19 11.19 14 6.9 1.011 0.621 36 5.1 121.8 139.1 5:38 (257, 6)
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Still brightening very rapidly. It is observable until early February in the Northern Hemisphere, until mid January in Southern Hemisphere. in the evening sky. It will approach to the sun down to 0.1 AU in February. But it will collapse and disappear before the perihelion passage.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 0 47.61 12 16.7 0.817 1.306 92 7.9 69.1 260.9 18:31 ( 24, 66)
Jan. 11 0 17.28 11 2.1 0.847 1.159 78 7.5 60.3 260.3 18:36 ( 50, 57)
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It will be observable in the good condition for a long time from winter to next spring. Strongly condensed and easy to see.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 12 2.87 45 53.8 1.443 2.065 115 10.4 10.6 107.5 5:10 (180, 79)
Jan. 11 12 8.44 45 31.5 1.393 2.060 119 10.4 7.3 116.3 4:48 (180, 79)
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Not observable. It will appear at dawn in next 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)
Jan. 4 19 35.58 -21 27.1 2.564 1.600 8 11.6 45.7 83.2 18:31 ( 71,-10)
Jan. 11 19 58.15 -20 42.8 2.583 1.612 7 11.7 45.4 81.1 18:36 ( 73,-11)
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It will be observable in good condition at 11-12 mag in early 2003 and 2003 autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 8 52.29 -5 38.0 2.553 3.366 140 12.3 34.9 276.7 2:01 ( 0, 49)
Jan. 11 8 35.07 -5 2.7 2.450 3.328 148 12.2 39.1 278.9 1:16 ( 0, 50)
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It was much fainter than this ephemeris, 17.4 mag on July 31 by Akimasa Nakamura. No further observations were reported, so the current brightness is uncertain.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 21 23.87 -16 40.5 2.255 1.555 34 13.2 48.2 63.9 18:31 ( 59, 13)
Jan. 11 21 44.69 -14 8.3 2.287 1.562 33 13.2 48.2 62.7 18:36 ( 63, 13)
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It was almost always at 12 mag in 2002. But this observable season will end soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 21 11.68 -14 55.9 6.585 5.782 32 13.8 11.4 70.3 18:31 ( 62, 12)
Jan. 11 21 16.95 -14 28.2 6.640 5.781 26 13.8 11.8 69.9 18:36 ( 67, 7)
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It was reported as about 12.5 mag visually and by photos in late December, much brighter than this ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 22 19.21 -5 22.3 2.093 1.672 51 14.1 38.9 58.4 18:31 ( 57, 31)
Jan. 11 22 34.99 -2 57.0 2.115 1.650 49 14.0 40.2 58.4 18:36 ( 62, 29)
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Getting higher in the morning sky. It is observable in good condition at 14-15 mag until 2003 autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 17 51.32 22 20.3 5.831 5.223 47 14.1 15.2 62.6 5:38 (256, 20)
Jan. 11 17 58.12 23 12.0 5.806 5.230 50 14.1 15.4 59.7 5:38 (258, 25)
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Appearing at dawn, and observed as bright as expected. It is observable at 12.5 mag for long time from April to August in 2003.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 16 5.54 -17 57.0 3.237 2.568 40 14.3 26.9 104.8 5:38 (307, 17)
Jan. 11 16 18.29 -18 43.1 3.164 2.556 44 14.2 26.6 103.9 5:38 (310, 18)
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Before the perihelion passage, it brightened rapidly and reached to 13 mag. Now appearing at dawn. Yuuji Ohshima observed it on Dec. 27, then it was 12.5 mag, much brighter than this ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 16 8.52 -19 14.5 2.041 1.425 39 14.2 17.1 217.3 5:38 (307, 15)
Jan. 11 16 2.69 -20 52.2 1.953 1.479 47 14.7 19.6 222.7 5:38 (315, 19)
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It brightened very rapidly since September and already reached to 14 mag. But it is only observable until next spring. 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)
Jan. 4 3 56.71 16 19.8 2.003 2.805 137 14.3 8.5 267.7 21:01 ( 0, 71)
Jan. 11 3 53.20 16 19.7 2.036 2.765 129 14.3 5.9 273.1 20:30 ( 0, 71)
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It brightened about 1 mag after perihelion passage and reached to 12 mag. Now already getting fainter, but still bright as 14 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 12 1.23 10 16.3 1.493 2.010 106 14.4 6.3 82.2 5:09 ( 0, 65)
Jan. 11 12 3.32 10 27.5 1.464 2.063 113 14.5 3.5 47.3 4:43 ( 0, 65)
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New comet. It will reach to 11 mag in March and April. In the Northern Hemisphere, it is observable until late April. In the Southern Hemisphere, it locates low in January, then it will not be observable for a while, and it becomes observable again after May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 13 37.34 19 40.2 1.661 1.913 88 14.9 42.5 46.2 5:38 (312, 69)
Jan. 11 13 53.95 23 34.8 1.476 1.816 93 14.4 52.2 43.1 5:38 (310, 73)
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It will be observable in good condition at 14 mag in winter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 11 12.65 9 22.1 1.210 1.880 117 14.5 16.6 86.0 4:20 ( 0, 64)
Jan. 11 11 19.78 9 36.1 1.157 1.884 123 14.4 13.9 78.1 4:00 ( 0, 65)
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Although it was expected to be 11 mag, the brightening pace is very slow in this return. It is still 15 mag. It will be 13.5 mag at best in spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 14 5.34 -11 53.6 2.306 2.173 69 14.7 27.7 112.1 5:38 (330, 38)
Jan. 11 14 17.41 -13 4.4 2.229 2.171 73 14.7 26.7 111.6 5:38 (335, 38)
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Now it is at peak. It keeps observable in good condition until April 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)
Jan. 4 9 47.69 18 52.1 0.960 1.827 140 14.8 9.7 57.7 2:55 ( 0, 74)
Jan. 11 9 50.86 19 32.1 0.935 1.837 146 14.8 7.8 37.1 2:31 ( 0, 74)
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It will keep 14-15 mag until the end of 2003.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 9 48.35 24 15.3 2.380 3.204 140 14.9 34.8 289.3 2:57 ( 0, 79)
Jan. 11 9 29.92 25 36.1 2.258 3.159 151 14.8 40.4 286.7 2:11 ( 0, 81)
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It became faint after the perihelion passage. It was reported as fainter than 15 mag recently, so 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)
Jan. 4 15 6.54 40 13.4 4.201 4.192 82 15.1 4.2 78.7 5:38 (249, 59)
Jan. 11 15 8.66 40 22.7 4.167 4.225 86 15.1 3.3 56.7 5:38 (248, 64)
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It will reach to 1 mag in 2004 spring. In the Northern Hemisphere, it locates low in the evening sky until February, then it will not be observable until 2004 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 1 51.50 -40 1.7 6.099 6.096 85 15.3 5.3 323.4 18:57 ( 0, 15)
Jan. 11 1 49.94 -39 30.5 6.120 6.033 80 15.2 5.1 336.8 18:36 ( 2, 16)
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The brightening pace is slow and it has been around 15.5 mag since late October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 16 48.75 34 58.3 1.226 1.210 65 15.4 30.2 160.6 5:38 (250, 38)
Jan. 11 16 53.77 31 48.6 1.243 1.219 65 15.4 27.0 162.9 5:38 (256, 42)
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Appearing at dawn. It keeps 15 mag until spring, but it will be low for the northern observers.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 15 33.05 -26 3.8 3.623 3.028 46 15.4 10.0 184.7 5:38 (318, 15)
Jan. 11 15 32.21 -27 14.6 3.546 3.062 53 15.4 10.5 193.4 5:38 (324, 18)
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It will reach to 7 mag in 2003 autumn. In the Northern Hemisphere, it will observable only until 2003 July, when it reaches to 10 mag. After that, only southern people can observe it until 2003 December, when it fades to 9 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 15 37.68 27 24.0 4.032 3.802 69 15.8 8.0 81.1 5:38 (267, 50)
Jan. 11 15 41.64 27 36.7 3.879 3.725 73 15.7 7.5 71.4 5:38 (271, 55)
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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)
Jan. 4 5 0.77 28 24.9 5.253 6.146 153 16.0 12.6 265.2 22:05 ( 0, 83)
Jan. 11 4 54.28 28 16.7 5.251 6.081 144 15.9 11.9 264.0 21:31 ( 0, 83)
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It keeps 16 mag until 2003 June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 13 30.86 35 23.7 5.733 5.926 96 16.0 3.4 61.2 5:38 (264, 78)
Jan. 11 13 32.26 35 37.0 5.678 5.956 101 16.0 2.8 41.3 5:38 (263, 83)
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It will be observable at 16-17 mag until the end of 2003.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 1 22.70 14 59.1 3.804 4.114 101 16.4 13.6 254.3 18:31 ( 2, 70)
Jan. 11 1 16.97 14 36.0 3.924 4.094 92 16.5 11.0 254.8 18:36 ( 27, 68)
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Appearing at dawn. It will be 14 mag from spring to summer. No observations have been reported since 2002 June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 14 53.90 -11 15.7 3.641 3.244 58 16.6 19.1 102.3 5:38 (317, 33)
Jan. 11 15 2.72 -11 42.6 3.522 3.211 63 16.5 18.7 101.2 5:38 (322, 35)
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It keeps 16 mag since August unexpectedly.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 21 7.77 72 33.7 3.882 4.133 97 16.6 20.1 102.2 18:31 (159, 41)
Jan. 11 21 37.45 72 0.5 3.974 4.200 96 16.7 19.7 104.2 18:36 (158, 41)
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After the outburst in late September, it has been fading more slowly than expected, and it kept 15 mag still in mid December. However, now it is extremely diffused.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 13 54.83 1 2.0 1.861 1.901 77 16.7 18.9 97.7 5:38 (325, 51)
Jan. 11 14 2.96 0 48.6 1.836 1.961 82 17.0 16.1 94.5 5:38 (333, 53)
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It keeps 17 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. 4 9 35.98 12 59.3 4.700 5.500 141 17.1 7.5 333.9 2:44 ( 0, 68)
Jan. 11 9 34.17 13 48.0 4.653 5.518 148 17.1 8.3 329.5 2:15 ( 0, 69)
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Asteroid with a cometary orbit. It will be 15.7 mag at opposition in early September in 2003.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 4 34.57 67 4.8 1.948 2.691 130 17.4 50.7 256.0 21:35 (180, 58)
Jan. 11 3 42.00 64 52.7 1.972 2.648 123 17.4 47.9 241.1 20:17 (180, 60)
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The ephemeris says it is 17 mag at dusk in February. But it will not appear as predicted. It must have reached to 18 mag at meridian transit in the evening in 2002 autumn, but not recovered. It implies the comet is really 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)
Jan. 4 0 18.75 10 55.1 1.301 1.568 85 17.5 30.7 74.4 18:31 ( 36, 62)
Jan. 11 0 33.50 11 56.4 1.325 1.539 82 17.4 33.6 74.0 18:36 ( 45, 60)
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It is getting fainter gradually. It keeps brighter than 18 mag until March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 9 18.14 25 8.4 7.243 8.092 147 17.5 10.4 300.2 2:26 ( 0, 80)
Jan. 11 9 13.35 25 44.8 7.221 8.127 155 17.5 10.9 298.5 1:54 ( 0, 81)
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Asteroid with a cometary orbit. Fading now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 23 22.92 22 38.5 2.656 2.650 78 17.7 7.0 287.7 18:31 ( 73, 61)
Jan. 11 23 20.24 22 57.0 2.809 2.677 72 17.8 5.1 308.2 18:36 ( 82, 54)
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Now it is much brighter than expected, as bright as 16 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 4 4 57.74 35 21.1 2.369 3.265 151 17.8 6.4 251.7 22:02 (180, 90)
Jan. 11 4 54.78 35 5.8 2.437 3.285 144 17.9 4.8 241.2 21:32 (180, 90)
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