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New comet. It locates in the morning sky until early January. 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)
Dec. 14 15 45.97 45 20.5 1.130 1.249 72 7.9 92.6 108.8 2:53 (236,-38)
Dec. 21 16 44.30 40 34.9 1.041 1.105 66 7.3 107.1 117.8 2:55 (244,-41)
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Brightening very rapidly. It will be bright locating high, so good target in December. It is also observable in January 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)
Dec. 14 2 41.61 15 48.8 0.827 1.709 141 10.6 83.0 265.4 21:06 (180, 39)
Dec. 21 2 1.22 14 49.7 0.799 1.580 124 9.5 83.6 263.5 21:00 (161, 38)
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Brightening was slow in November. It is still 11.5-12.0 mag, a bit fainter than this ephemeris. It will be observable in the good condition for a long time from winter to next spring, but maybe around 11 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 11 32.83 47 6.0 1.614 2.102 105 10.8 19.3 100.9 2:53 (210, -3)
Dec. 21 11 44.87 46 40.7 1.554 2.086 108 10.7 16.7 102.1 2:55 (208, 0)
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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)
Dec. 14 18 26.26 -22 28.8 2.519 1.584 14 11.5 46.0 89.9 20:55 ( 54, -9)
Dec. 21 18 49.51 -22 20.8 2.532 1.586 12 11.5 46.1 87.6 21:00 ( 53,-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)
Dec. 14 9 31.49 -6 10.9 2.981 3.484 112 12.8 21.1 268.6 2:53 (213, 57)
Dec. 21 9 20.56 -6 10.3 2.823 3.444 121 12.7 25.5 271.6 2:55 (195, 60)
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It will appear at dawn at 14 mag in late December. Then it will fade out.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 16 19.92 -14 42.9 2.206 1.300 17 13.1 14.0 205.6 2:53 (300,-14)
Dec. 21 16 16.79 -16 11.5 2.170 1.335 24 13.4 14.5 208.6 2:55 (296, -7)
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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)
Dec. 14 20 18.93 -23 30.1 2.181 1.561 39 13.1 46.9 68.4 20:55 ( 70, 12)
Dec. 21 20 40.95 -21 23.0 2.203 1.554 38 13.2 47.5 66.7 21:00 ( 70, 9)
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It seems to keep 12 mag recently.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 20 56.99 -16 10.6 6.365 5.786 50 13.7 9.9 70.9 20:55 ( 81, 15)
Dec. 21 21 1.67 -15 47.2 6.447 5.785 44 13.8 10.5 70.8 21:00 ( 77, 9)
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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 13.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 11 44.90 10 45.3 1.580 1.855 89 13.8 16.7 102.2 2:53 (236, 24)
Dec. 21 11 51.93 10 25.4 1.552 1.906 94 13.9 13.4 99.2 2:55 (232, 28)
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Although it becomes low for a while in early December, it will be getting higher after mid December. 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)
Dec. 14 17 30.89 20 17.5 5.876 5.206 43 14.1 14.4 70.7 20:55 ( 83,-47)
Dec. 21 17 37.67 20 53.2 5.867 5.211 44 14.1 14.7 68.1 2:55 (275,-45)
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Getting fainter very slowly. It keeps 14-15 mag until 2003 summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 14 55.81 40 31.2 4.284 4.096 72 14.3 7.8 109.2 2:53 (238,-28)
Dec. 21 15 0.04 40 17.3 4.260 4.127 75 14.3 6.6 102.3 2:55 (236,-23)
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It suddenly brightened in late November and reached to 14.5 mag. It will be 13.5 mag or so in February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 21 34.89 -12 7.5 2.021 1.756 60 14.4 34.4 58.3 20:55 ( 90, 21)
Dec. 21 21 49.13 -9 57.8 2.046 1.725 57 14.3 36.0 58.4 21:00 ( 89, 16)
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Appearing at dawn. 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)
Dec. 14 15 27.50 -15 18.4 3.431 2.609 28 14.5 27.3 107.7 2:53 (292, -4)
Dec. 21 15 40.11 -16 14.5 3.370 2.595 32 14.4 27.2 106.7 2:55 (290, 0)
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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)
Dec. 14 10 43.94 9 45.8 1.395 1.880 103 14.8 23.7 97.5 2:53 (224, 34)
Dec. 21 10 54.58 9 28.2 1.330 1.878 107 14.7 21.6 95.0 2:55 (219, 37)
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Although it will be at the peak in 2003 January and be observable in good condition, it may reach to 14.5 mag at best.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 9 28.05 17 45.6 1.078 1.814 123 14.9 18.2 86.2 2:53 (199, 35)
Dec. 21 9 36.20 17 58.4 1.032 1.815 128 14.8 15.3 80.6 2:55 (193, 36)
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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 2003 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 13 27.57 -8 0.5 2.533 2.187 58 15.0 29.7 113.3 2:53 (269, 16)
Dec. 21 13 40.36 -9 21.3 2.458 2.181 62 14.9 29.2 112.9 2:55 (267, 20)
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New comet. It will keep 15 mag until February. But it was a bit fainter than this ephemeris in November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 16 23.29 46 51.9 1.132 1.241 71 15.2 44.3 155.9 2:53 (236,-44)
Dec. 21 16 34.00 42 25.4 1.169 1.221 68 15.3 38.7 157.4 2:55 (241,-40)
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New comet. 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)
Dec. 14 10 25.41 20 47.9 2.863 3.344 110 15.5 18.6 295.1 2:53 (213, 27)
Dec. 21 10 15.81 21 48.1 2.688 3.297 120 15.3 23.5 293.4 2:55 (203, 30)
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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)
Dec. 14 2 0.28 -41 10.2 6.036 6.285 100 15.4 6.6 288.7 20:55 ( 39, 82)
Dec. 21 1 56.70 -40 52.4 6.055 6.222 95 15.3 6.1 299.0 21:00 ( 60, 76)
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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)
Dec. 14 15 31.58 -22 39.2 3.786 2.932 25 15.4 9.8 165.9 2:53 (298, 0)
Dec. 21 15 32.59 -23 46.4 3.744 2.963 32 15.4 9.8 170.9 2:55 (295, 6)
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It is already 16 mag, brighter than expected. 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)
Dec. 14 4 13.74 16 44.1 1.972 2.925 162 15.6 14.1 262.7 22:41 (180, 38)
Dec. 21 4 7.22 16 32.7 1.970 2.885 153 15.5 12.8 263.6 22:07 (180, 38)
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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)
Dec. 14 13 23.06 35 7.6 5.903 5.841 81 16.0 6.0 91.7 2:53 (233, -9)
Dec. 21 13 26.21 35 8.6 5.847 5.869 86 16.0 5.1 84.6 2:55 (230, -5)
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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)
Dec. 14 5 21.55 28 38.2 5.360 6.341 174 16.2 13.0 269.3 23:48 (180, 26)
Dec. 21 5 14.56 28 35.9 5.307 6.277 169 16.1 13.2 267.9 23:14 (180, 26)
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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)
Dec. 14 15 24.00 27 32.1 4.457 4.030 58 16.3 9.4 101.7 2:53 (254,-27)
Dec. 21 15 28.77 27 22.2 4.322 3.955 61 16.1 8.9 95.8 2:55 (251,-22)
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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)
Dec. 14 19 30.04 73 38.9 3.653 3.930 99 16.3 20.5 93.7 20:55 (160,-37)
Dec. 21 20 3.70 73 24.2 3.722 3.998 99 16.4 20.5 96.8 21:00 (160,-37)
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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)
Dec. 14 1 47.72 16 40.1 3.489 4.179 128 16.3 22.1 255.0 20:55 (168, 37)
Dec. 21 1 38.02 16 1.8 3.583 4.157 119 16.4 19.3 254.4 21:00 (155, 35)
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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)
Dec. 14 14 26.73 -9 37.0 3.975 3.344 44 17.0 20.1 105.3 2:53 (278, 5)
Dec. 21 14 35.86 -10 12.7 3.868 3.311 49 16.9 19.8 104.4 2:55 (276, 9)
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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)
Dec. 14 9 38.34 10 55.3 4.908 5.447 118 17.1 5.0 1.3 2:53 (205, 41)
Dec. 21 9 38.11 11 32.5 4.829 5.464 125 17.1 5.7 349.1 2:55 (195, 42)
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Asteroid with a cometary orbit. It will be fading after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 14 23 41.65 22 26.1 2.181 2.579 102 17.2 19.4 267.4 20:55 (139, 20)
Dec. 21 23 33.21 22 23.1 2.339 2.601 94 17.4 14.2 270.3 21:00 (131, 14)
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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)
Dec. 14 5 11.67 35 45.9 2.241 3.208 167 17.4 9.4 269.3 23:39 (180, 19)
Dec. 21 5 6.42 35 42.2 2.270 3.227 163 17.5 8.8 264.2 23:06 (180, 19)
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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)
Dec. 14 7 26.84 64 9.6 2.050 2.827 134 17.5 47.2 303.6 2:00 (180, -9)
Dec. 21 6 37.46 66 39.7 1.986 2.781 136 17.4 50.3 289.8 0:44 (180,-12)
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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)
Dec. 14 9 30.12 23 21.4 7.395 7.987 123 17.5 8.1 306.8 2:53 (198, 29)
Dec. 21 9 26.58 23 56.1 7.331 8.022 131 17.5 9.0 304.3 2:55 (189, 31)
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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)
Dec. 14 23 43.25 8 41.3 1.223 1.670 97 17.9 20.5 77.8 20:55 (131, 32)
Dec. 21 23 53.55 9 16.6 1.249 1.634 93 17.7 24.2 76.2 21:00 (126, 28)
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New comet. 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)
Dec. 14 2 15.56 -6 21.9 1.927 2.622 125 17.8 13.7 340.1 20:55 (174, 61)
Dec. 21 2 14.02 -4 48.6 1.985 2.610 119 17.9 13.8 352.0 21:00 (158, 58)
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It kept around 11.5 mag until early November. It still keeps 15 mag 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)
Dec. 14 13 23.43 2 34.5 1.910 1.722 63 17.9 26.7 103.5 2:53 (259, 11)
Dec. 21 13 35.00 1 55.2 1.898 1.782 68 17.9 24.2 102.0 2:55 (257, 15)
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