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Good condition and visible with naked-eye in the Southern Hemisphere. In the Northern Hemisphere, it is not observable until early May. It reaches to 2 mag in early and mid May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 4 28.05 -60 28.4 0.516 1.035 78 3.3 134.5 57.2 20:11 ( 35,-28)
May 1 6 14.04 -44 28.7 0.369 0.997 77 2.4 262.4 35.5 20:19 ( 44,-10)
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Good condition and visible with naked-eye in the Southern Hemisphere. In the Northern Hemisphere, it locates extremely low sky at dawn until early May. It reaches to 1.5-2 mag in mid May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 23 54.81 3 24.8 1.078 0.615 34 4.0 23.7 148.3 3:45 (267, 2)
May 1 0 6.09 0 38.4 0.815 0.639 39 3.5 48.9 125.7 3:35 (270, 2)
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It reached to -2 mag at the perihelion passage. It has been observed at dawn since Apr. 22, and the comet is bright as 3-4 mag. In the Northern Hemisphere, the comet will be higher and higher after this. Although it becomes fainter rapidly, it will be a good target for visual observation in May. Not observable in the Southern Hemisphere. It passes very close by C/2003 T3 ( Tabur ) on Apr. 25.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 1 6.30 23 48.3 0.913 0.316 18 4.8 119.8 342.3 3:45 (241, 0)
May 1 0 59.01 33 27.3 1.092 0.519 28 7.3 60.7 359.9 3:35 (236, 10)
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Appearing at dawn. Now it is 9.5 mag, as bright as expected. In the Northern Hemisphere, it keeps low after this until autumn. Not observable in the Southern Hemisphere. It passes very close by a new comet C/2004 F4 ( Bradfield ) on Apr. 25.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 0 57.64 25 40.1 2.379 1.482 20 9.5 50.6 43.5 3:45 (240, 3)
May 1 1 16.50 29 56.4 2.353 1.481 23 9.6 51.6 44.8 3:35 (237, 5)
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It keeps 10-11 mag until mid May. Good condition in the Southern Hemisphere, but it locates lower than 10 deg in the Northern Hemisphere. It becomes higher after June, but the comet will be fading at that time.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 22 45.89 -11 22.4 1.663 1.373 55 10.8 49.4 69.8 3:45 (289, 7)
May 1 23 7.52 -9 21.7 1.650 1.382 56 10.9 48.0 69.0 3:35 (287, 8)
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The condition is worst in this return. It is not observable around the perihelion passage. It will appear at dawn in autumn, when it will already fade to 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 1 20.95 12 4.5 2.058 1.090 11 11.3 63.4 75.0 3:45 (248,-10)
May 1 1 50.68 13 53.7 2.038 1.064 10 11.1 64.5 76.6 3:35 (244,-11)
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Well condensed and easy to see. It is about 0.5 mag brighter than this ephemeris visually. It will be 6.5 mag in the southern sky from autumn to winter in 2004. 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)
Apr. 24 20 11.55 28 33.7 2.686 2.750 82 11.5 18.6 340.1 3:45 (273, 60)
May 1 20 7.16 30 42.7 2.508 2.669 87 11.3 21.8 332.4 3:35 (272, 65)
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It was diffused around 11.5 mag visually in February and March. But it began to fade in mid April. It will be lower and fainter gradually in the evening sky after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 8 45.12 -15 11.2 1.918 2.347 102 12.8 30.0 300.9 20:11 ( 29, 35)
May 1 8 34.48 -13 33.2 2.085 2.372 93 13.0 22.6 303.9 20:19 ( 42, 31)
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It will be lower and lower while fading after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 5 8.63 16 10.3 2.189 1.622 43 13.0 43.2 93.4 20:11 ( 97, 19)
May 1 5 29.50 15 48.0 2.239 1.640 42 13.1 43.0 94.8 20:19 ( 99, 16)
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Appearing at dawn. But no observations have been reported yet.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 23 55.02 5 35.1 6.537 5.725 33 13.8 11.5 62.0 3:45 (265, 3)
May 1 23 59.68 6 12.5 6.474 5.725 38 13.7 11.1 61.4 3:35 (267, 6)
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Not observable. It will appear at dawn soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 0 52.95 13 9.3 4.950 4.006 18 14.6 4.9 38.4 3:45 (251, -4)
May 1 0 54.30 13 36.1 4.952 4.053 24 14.6 4.6 33.8 3:35 (253, -1)
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At the previous appearance, it brightened after the perihelion passage and reached to 10 mag. If it has behaved so again, it could have reach to 13 mag in February and March. However, it must be much fainter actually than expected. It seems to go while nobody succeeded to observe it in this return.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 3 42.65 10 25.2 2.710 1.831 23 14.6 39.5 77.1 20:11 (104, -2)
May 1 4 0.69 11 22.8 2.782 1.880 21 14.9 38.2 78.4 20:19 (107, -5)
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The brightness evolution is gradual in this return. So it will reach to 15 mag at best.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 16 3.98 1 16.9 1.097 2.020 147 15.1 7.1 301.2 1:56 ( 0, 56)
May 1 16 0.61 1 37.3 1.103 2.052 152 15.1 8.5 284.4 1:25 ( 0, 57)
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It became brighter than expected after the perihelion passage, and it was observed visually around 13.5 mag in February and March. After this, 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)
Apr. 24 12 48.73 7 52.0 1.444 2.377 151 15.1 12.0 235.5 22:36 ( 0, 63)
May 1 12 44.65 7 0.9 1.504 2.400 145 15.3 10.8 223.6 22:05 ( 0, 62)
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Althouhg it must be fainter than 17 mag, it unexpectedly brightened from February to March and reached to 14.5 mag. It has already begun to fade, and faded to 16 mag in mid April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 11 29.32 10 2.4 2.056 2.853 134 15.7 2.4 299.6 21:18 ( 0, 65)
May 1 11 28.86 10 6.4 2.154 2.883 127 15.9 0.1 105.5 20:50 ( 0, 65)
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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)
Apr. 24 5 3.16 69 58.3 5.074 4.708 63 15.8 7.2 115.1 20:11 (155, 36)
May 1 5 12.53 69 38.8 5.061 4.637 59 15.7 7.8 108.9 20:19 (155, 34)
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New periodic comet. It is observable at 15-16 mag for a long time until 2005 autumn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 13 24.80 12 8.2 2.236 3.165 152 15.8 10.4 269.2 23:12 ( 0, 67)
May 1 13 20.06 12 2.5 2.255 3.150 147 15.7 9.6 261.0 22:40 ( 0, 67)
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In the Northern Hemisphere, it keeps fading at about 35 deg high until August 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)
Apr. 24 19 37.87 -18 42.3 2.094 2.489 100 15.8 7.5 78.4 3:45 (331, 31)
May 1 19 40.81 -18 33.3 2.045 2.531 107 15.9 4.7 77.3 3:35 (335, 32)
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It was 18.5 mag in early April, about 1 mag fainter than this ephemeris. It will reach to 15 mag in summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 19 48.96 -14 33.0 2.243 2.576 97 16.9 14.9 86.3 3:45 (326, 34)
May 1 19 55.76 -14 27.6 2.138 2.557 102 16.8 13.3 87.7 3:35 (329, 35)
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It will be fading slowly until November 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)
Apr. 24 19 14.67 34 1.1 5.830 5.974 93 16.9 11.7 1.7 3:45 (268, 73)
May 1 19 14.55 35 21.9 5.803 6.004 96 16.9 11.4 356.1 3:35 (264, 77)
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New comet. Now it is at peak at 17 mag. It will be low in May, and will fade out while locating low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 1 37.46 83 58.6 1.305 1.366 71 16.9 71.3 116.2 3:45 (186, 32)
May 1 3 52.83 78 7.5 1.405 1.319 63 16.9 59.8 151.9 20:19 (166, 31)
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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)
Apr. 24 16 4.74 53 59.5 5.538 5.936 108 17.0 16.7 297.9 1:57 (180, 71)
May 1 15 52.61 54 47.6 5.558 5.949 108 17.0 16.5 291.3 1:17 (180, 70)
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It will be observable at 17.5 mag in good condition until August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 18 32.43 11 7.9 2.815 3.298 109 17.0 5.4 46.6 3:45 (338, 65)
May 1 18 33.83 11 31.8 2.755 3.308 114 17.0 3.6 32.4 3:35 (347, 66)
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It was at peak in mid April. It will be lower while fading after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 11 57.94 44 51.0 1.409 2.051 115 17.4 25.4 347.8 21:46 (180, 80)
May 1 11 55.22 47 25.0 1.484 2.037 108 17.4 19.5 352.1 21:16 (180, 77)
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It was observed around 17.5 mag recently. It will be fainter than 18 mag in late May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 13 31.21 7 28.2 6.116 7.057 157 17.5 9.2 264.5 23:19 ( 0, 62)
May 1 13 27.00 7 20.6 6.196 7.103 152 17.6 8.8 261.5 22:47 ( 0, 62)
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It will be observable around 17.5 mag until June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 18 15.25 -8 34.3 4.038 4.612 119 17.7 7.2 224.4 3:45 (352, 46)
May 1 18 12.49 -9 11.7 3.969 4.638 126 17.7 8.7 230.0 3:35 ( 0, 46)
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Fading slowly. It will be observable in good condition until May when it will be 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)
Apr. 24 9 29.20 43 30.1 4.697 4.894 95 17.8 7.7 165.0 20:11 (134, 77)
May 1 9 30.85 42 37.4 4.854 4.956 89 17.9 8.2 157.4 20:19 (121, 72)
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It was brighter than this ephemeris recently, around 17.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 24 11 37.81 12 30.1 3.250 4.025 135 18.2 5.4 267.8 21:26 ( 0, 67)
May 1 11 35.57 12 25.8 3.310 4.009 127 18.2 4.1 255.3 20:56 ( 0, 67)
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