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It only brightened to 6 mag, and became too close to the sun to observe. In the Southern Hemisphere, it will appear at dusk in mid February at 6 mag. In the Northern Hemisphere, in March at 7 mag. Then it will fade out slowly.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 20 18.32 -10 16.3 1.161 0.245 9 4.6 146.9 152.2 3:32 (302,-23)
Feb. 1 20 58.43 -26 31.6 1.129 0.223 9 4.3 157.4 142.2 20:43 ( 46,-10)
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It had been brightening extremely rapidly for about two months since discovery. But now it is brightening in normal pace. It is observable until early February in the Northern Hemisphere in the evening sky. It will approach to the sun down to 0.1 AU in February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 23 26.37 8 41.8 0.912 0.835 52 5.8 51.9 258.0 20:51 ( 99, -2)
Feb. 1 23 1.99 7 13.1 0.937 0.651 39 4.8 56.1 254.1 20:43 ( 92,-10)
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New comet. It is a widely diffused object. It will reach to 9 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. 25 14 41.74 35 12.1 1.130 1.600 98 10.8 83.0 41.4 3:32 (215, 9)
Feb. 1 15 19.81 43 5.1 1.008 1.499 97 10.3 101.9 44.3 3:42 (210, 3)
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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. 25 12 12.01 44 41.2 1.308 2.059 127 10.6 4.4 196.4 3:32 (184, 10)
Feb. 1 12 9.90 44 7.9 1.275 2.064 131 10.5 7.5 224.0 3:27 (180, 11)
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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)
Jan. 25 20 41.87 -18 44.1 2.625 1.643 3 11.9 44.3 77.4 20:51 ( 53,-16)
Feb. 1 21 2.88 -17 32.1 2.648 1.663 1 12.1 43.7 75.8 20:43 ( 54,-17)
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It brightened suddenly up to 12.5 mag visually and by photos in late December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 23 7.92 2 5.7 2.158 1.615 44 12.2 42.4 58.6 20:51 ( 92, -1)
Feb. 1 23 25.08 4 41.6 2.181 1.604 42 12.1 43.4 58.9 20:43 ( 94, -3)
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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. 25 7 56.34 -3 10.4 2.329 3.255 156 12.3 44.3 282.8 23:36 (180, 58)
Feb. 1 7 36.15 -1 56.3 2.314 3.220 152 12.2 44.4 284.7 22:49 (180, 57)
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Before the perihelion passage, it brightened rapidly and reached to 13 mag. After appearing at dawn, it was bright at 12.5 mag and observed visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 15 45.01 -24 27.4 1.741 1.599 65 13.3 27.9 233.8 3:32 (275, 38)
Feb. 1 15 31.58 -26 26.7 1.625 1.664 74 13.5 34.5 239.3 3:42 (271, 49)
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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. 25 22 24.90 -8 50.8 2.362 1.590 30 13.4 47.5 61.1 20:51 ( 77, -4)
Feb. 1 22 44.32 -6 9.1 2.405 1.611 28 13.5 47.0 60.5 20:43 ( 79, -5)
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Not observable. It will be obervable again in April or May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 21 27.81 -13 29.3 6.720 5.778 15 13.9 12.3 69.2 20:51 ( 64,-12)
Feb. 1 21 33.34 -12 58.3 6.745 5.777 9 13.9 12.4 68.8 20:43 ( 62,-15)
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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. 25 16 43.65 -20 4.9 3.009 2.533 52 14.0 25.9 102.0 3:32 (278, 24)
Feb. 1 16 56.18 -20 40.8 2.927 2.522 56 14.0 25.4 101.2 3:42 (276, 29)
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It reached to 14 mag by CCD, a bit brighter than expected. It was also observed visually at around 13.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 11 29.57 10 40.2 1.067 1.898 135 14.0 9.4 47.9 3:14 (180, 44)
Feb. 1 11 32.03 11 29.6 1.033 1.908 141 14.0 8.5 23.8 2:49 (180, 44)
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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)
Jan. 25 18 11.46 25 11.5 5.742 5.245 55 14.1 15.7 53.7 3:32 (252,-19)
Feb. 1 18 17.93 26 19.3 5.705 5.253 58 14.1 15.9 50.6 3:42 (247,-13)
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Although it was expected to be 11 mag, the brightening pace is very slow in this return. It is still 14.5 mag. It will be 13 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. 25 14 40.39 -15 13.9 2.073 2.170 82 14.2 24.4 110.9 3:32 (254, 47)
Feb. 1 14 51.12 -16 12.3 1.996 2.171 86 14.2 22.9 110.6 3:42 (249, 52)
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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. 25 8 44.16 28 2.0 2.098 3.073 170 14.5 48.5 280.3 0:31 (180, 27)
Feb. 1 8 18.23 28 51.6 2.067 3.031 165 14.4 49.8 276.6 23:30 (180, 26)
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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. 25 9 52.46 21 8.2 0.912 1.868 159 14.9 7.3 350.7 1:38 (180, 34)
Feb. 1 9 51.34 21 57.6 0.915 1.887 166 15.1 7.5 335.2 1:09 (180, 33)
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It will reach to 7 mag in autumn. In the Northern Hemisphere, it will observable only until July, when it reaches to 10 mag. After that, only southern people can observe it until 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. 25 15 48.14 28 27.6 3.562 3.570 82 15.3 7.0 45.6 3:32 (230, 5)
Feb. 1 15 50.43 29 6.6 3.400 3.492 87 15.1 7.2 29.6 3:42 (224, 10)
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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. 25 12 2.13 11 19.4 1.419 2.167 127 15.1 7.1 314.6 3:32 (185, 44)
Feb. 1 11 58.87 11 57.6 1.405 2.220 135 15.2 10.4 304.5 3:16 (180, 43)
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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. 25 1 48.89 -38 20.8 6.154 5.905 70 15.2 5.2 2.7 20:51 ( 70, 50)
Feb. 1 1 49.36 -37 43.8 6.164 5.841 66 15.1 5.5 14.0 20:43 ( 70, 46)
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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)
Jan. 25 15 10.23 41 0.5 4.097 4.293 94 15.2 3.5 355.3 3:32 (216, 1)
Feb. 1 15 9.53 41 27.3 4.063 4.327 98 15.3 4.6 334.2 3:42 (210, 5)
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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. 25 15 27.56 -29 41.1 3.367 3.134 67 15.4 12.5 211.3 3:32 (280, 44)
Feb. 1 15 23.37 -30 56.7 3.270 3.172 75 15.3 14.2 219.8 3:42 (277, 53)
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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 two months after that. It is only observable until 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. 25 3 50.30 16 33.5 2.122 2.683 114 15.4 1.6 356.9 20:51 (157, 35)
Feb. 1 3 50.96 16 47.2 2.173 2.642 107 15.4 3.6 51.0 20:43 (152, 33)
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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. 25 17 0.02 26 16.1 1.250 1.265 67 15.5 22.3 170.5 3:32 (242, -6)
Feb. 1 17 1.27 23 47.0 1.239 1.301 70 15.5 20.7 176.9 3:42 (239, 2)
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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. 25 4 42.79 27 57.3 5.292 5.951 128 15.9 9.9 261.5 20:51 (174, 27)
Feb. 1 4 37.97 27 47.0 5.329 5.885 120 15.8 8.6 260.3 20:43 (167, 26)
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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)
Jan. 25 13 33.05 36 12.0 5.578 6.015 111 16.0 2.8 349.7 3:32 (202, 15)
Feb. 1 13 32.40 36 32.2 5.535 6.045 116 16.0 3.4 329.7 3:42 (194, 17)
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Appearing at dawn. 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)
Jan. 25 15 19.70 -12 26.0 3.275 3.146 73 16.3 17.4 98.6 3:32 (258, 37)
Feb. 1 15 27.76 -12 42.2 3.150 3.114 78 16.1 16.6 97.1 3:42 (253, 43)
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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. 25 1 8.87 14 6.5 4.167 4.056 76 16.5 6.5 258.1 20:51 (120, 15)
Feb. 1 1 6.26 13 59.7 4.284 4.039 69 16.6 4.6 262.2 20:43 (116, 11)
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It is observable at 16.5 mag in this winter and in next winter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 4 3.90 -8 25.2 3.594 4.031 109 16.8 9.6 2.6 20:51 (147, 60)
Feb. 1 4 4.51 -7 16.9 3.671 4.022 103 16.9 10.1 12.2 20:43 (140, 56)
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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. 25 9 29.38 15 32.8 4.601 5.557 164 17.1 9.5 324.2 1:15 (180, 40)
Feb. 1 9 26.58 16 27.1 4.598 5.576 172 17.1 9.8 322.8 0:45 (180, 39)
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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. 25 1 6.89 14 16.2 1.373 1.490 76 17.2 38.7 74.1 20:51 (120, 15)
Feb. 1 1 25.41 15 31.4 1.397 1.470 73 17.1 40.9 74.5 20:43 (120, 14)
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It will be 17 mag in winter and spring in the morning sky. After the last appearance in 1987, it has been missed twice in 1992 and 1997. It may be much fainter than this ephemeris. Because it keeps low in the morning sky, it will not be recovered by automated survey.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 15 10.13 -20 30.3 1.101 1.256 73 17.2 60.6 107.7 3:32 (266, 43)
Feb. 1 15 39.20 -22 28.9 1.077 1.242 73 17.1 60.0 105.2 3:42 (267, 46)
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It did not begin to fade even after the perihelion passage, it kept 16 mag for a while. Now it has already begun to fade out gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 25 4 52.30 34 31.6 2.606 3.327 130 17.2 2.5 182.5 20:51 (176, 20)
Feb. 1 4 52.83 34 14.6 2.703 3.348 123 17.4 3.1 140.2 20:43 (172, 20)
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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. 25 9 3.00 26 55.0 7.230 8.198 168 17.6 11.3 295.2 0:49 (180, 28)
Feb. 1 8 57.63 27 27.5 7.262 8.233 169 17.6 11.2 293.7 0:16 (180, 28)
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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. 25 2 36.18 58 20.7 2.091 2.562 107 17.6 38.6 220.3 20:51 (161, -9)
Feb. 1 2 18.02 54 58.5 2.176 2.521 98 17.7 33.3 213.2 20:43 (154, -9)
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