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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. 31 0 23.86 17 18.0 1.896 1.692 62 7.4 18.0 225.0 18:53 ( 80, 44)
Feb. 7 0 18.39 15 55.8 1.948 1.587 54 7.2 14.7 222.4 18:59 ( 85, 36)
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It is expected to be 2 mag in spring. In the Southern Hemisphere, it keeps observable around the same altitude in the evening sky 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. 31 23 7.46 -69 29.2 2.330 1.956 55 8.9 9.7 16.2 18:53 ( 21,-25)
Feb. 7 23 11.92 -68 27.9 2.236 1.869 55 8.7 9.2 26.9 18:59 ( 23,-27)
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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. 31 19 36.30 -26 56.6 1.684 0.825 19 12.1 50.4 81.8 5:33 (297, -9)
Feb. 7 20 0.70 -25 59.4 1.796 0.946 21 13.2 44.8 78.9 5:28 (296, -8)
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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. 31 22 14.32 -18 28.5 2.821 1.923 19 12.5 34.5 42.4 18:53 ( 69, -2)
Feb. 7 22 25.86 -15 26.7 2.793 1.865 15 12.5 35.7 42.3 18:59 ( 75, -5)
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It will be observable at 12-13 mag in the evening sky until April. But it will be getting lower gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 31 1 5.58 13 47.8 1.697 1.647 70 12.6 37.1 85.7 18:53 ( 67, 51)
Feb. 7 1 23.71 14 8.7 1.733 1.629 67 12.5 38.5 85.2 18:59 ( 71, 48)
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It keeps observable at 12-13 mag in the south until April. 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. 31 14 23.28 -19 30.4 2.020 2.255 90 12.8 27.4 237.3 5:33 (356, 35)
Feb. 7 14 9.86 -21 16.8 1.856 2.247 99 12.6 34.8 243.3 5:05 ( 0, 34)
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It will be too low in the evening sky at 14 mag in March. CCD observers reported it more than 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)
Jan. 31 0 38.16 8 50.8 3.831 3.478 61 13.3 2.1 301.4 18:53 ( 67, 42)
Feb. 7 0 37.67 9 0.5 3.994 3.519 54 13.5 1.7 349.2 18:59 ( 74, 36)
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It will be too low to observe soon. After conjunction, it will appear at dawn again in May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 31 22 53.14 -1 44.7 6.521 5.729 33 13.8 11.4 67.1 18:53 ( 77, 15)
Feb. 7 22 58.13 -1 12.7 6.578 5.728 28 13.8 11.8 66.6 18:59 ( 82, 10)
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It will be 6.5 mag in the southern sky from autumn to winter in 2004. It is getting higher in the morning sky. In the Northern Hemisphere, it is observable in good condition until early September when it becomes to 7.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 31 19 48.32 15 48.9 4.431 3.691 36 13.9 8.7 73.3 5:33 (260, 14)
Feb. 7 19 52.32 16 9.6 4.336 3.615 38 13.8 8.8 67.2 5:28 (262, 18)
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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. 31 17 48.07 -23 42.0 2.143 1.575 43 14.1 47.2 93.7 5:33 (311, 12)
Feb. 7 18 12.44 -23 56.0 2.077 1.540 44 13.8 48.4 91.4 5:28 (311, 12)
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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. 31 14 41.36 -4 13.1 1.485 1.798 91 14.0 31.8 92.6 5:33 (348, 50)
Feb. 7 14 55.82 -4 18.4 1.432 1.803 94 14.0 30.0 90.2 5:28 (352, 50)
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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. 31 17 36.06 -20 54.2 2.558 2.004 46 14.2 30.7 92.0 5:33 (311, 16)
Feb. 7 17 51.06 -20 58.5 2.538 2.042 49 14.3 29.3 90.5 5:28 (312, 17)
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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. 31 23 31.39 -9 8.4 2.020 1.411 39 15.1 52.0 72.9 18:53 ( 64, 18)
Feb. 7 23 54.69 -7 18.8 2.056 1.428 38 14.6 51.7 72.1 18:59 ( 68, 18)
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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. 31 13 24.32 10 22.2 1.576 2.169 113 15.0 9.9 100.7 4:46 ( 0, 65)
Feb. 7 13 28.18 10 12.1 1.519 2.180 119 15.0 6.7 99.2 4:23 ( 0, 65)
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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. 31 22 12.17 -19 31.6 3.810 2.899 19 15.3 24.8 68.4 18:53 ( 68, -3)
Feb. 7 22 23.51 -18 27.3 3.857 2.919 15 15.3 24.7 68.1 18:59 ( 72, -7)
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It reached to 15.5 mag in January, much brighter than expected.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 31 6 34.12 9 7.6 2.849 3.704 145 16.1 5.2 294.7 21:53 ( 0, 64)
Feb. 7 6 32.28 9 23.7 2.925 3.723 138 16.3 3.9 308.8 21:24 ( 0, 64)
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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. 31 23 14.28 70 30.3 2.666 2.867 91 16.2 34.4 100.7 18:53 (156, 41)
Feb. 7 23 59.74 69 28.2 2.703 2.871 89 16.3 34.4 107.4 18:59 (155, 43)
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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. 31 5 26.98 77 39.6 5.041 5.531 115 16.4 10.2 246.5 20:45 (180, 47)
Feb. 7 5 8.68 77 5.9 5.031 5.464 111 16.4 9.5 235.4 20:00 (180, 48)
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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. 31 2 11.20 -1 54.9 1.972 2.043 79 16.5 22.1 138.1 18:53 ( 32, 48)
Feb. 7 2 18.26 -3 38.5 2.126 2.086 74 16.8 20.4 130.8 18:59 ( 39, 44)
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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. 31 12 11.27 1 30.4 1.765 2.499 128 16.6 4.5 357.3 3:34 ( 0, 56)
Feb. 7 12 10.52 2 6.5 1.725 2.527 135 16.6 6.5 332.6 3:05 ( 0, 57)
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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. 31 8 6.08 19 19.6 3.151 4.123 169 16.6 10.9 313.0 23:25 ( 0, 74)
Feb. 7 8 2.28 20 10.7 3.190 4.135 161 16.7 10.2 314.4 22:54 ( 0, 75)
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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. 31 18 35.36 18 53.6 6.233 5.643 49 16.8 13.8 53.4 5:33 (267, 30)
Feb. 7 18 40.72 19 53.2 6.211 5.669 52 16.8 13.8 50.1 5:28 (268, 34)
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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. 31 10 16.36 48 49.4 3.308 4.149 144 17.0 10.4 287.8 1:39 (180, 76)
Feb. 7 10 9.22 49 6.6 3.366 4.212 144 17.1 10.3 279.8 1:05 (180, 76)
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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. 31 17 3.30 37 53.7 5.947 5.807 77 17.0 9.9 6.3 5:33 (252, 56)
Feb. 7 17 3.65 39 5.2 5.889 5.815 80 17.0 10.6 0.4 5:28 (251, 60)
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Unusual minor planet with a period of 55 years. It becomes to be at peak in mid February, and fainter than 18 mag in late March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 31 9 45.02 24 54.6 1.352 2.319 165 17.3 20.5 353.8 1:08 ( 0, 80)
Feb. 7 9 43.60 27 17.8 1.325 2.296 167 17.2 20.6 351.2 0:39 ( 0, 82)
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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. 31 1 58.90 35 41.7 1.691 1.958 90 17.6 46.0 135.3 18:53 ( 98, 71)
Feb. 7 2 16.27 32 9.0 1.827 2.006 85 17.8 40.8 133.3 18:59 ( 90, 67)
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