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The return of comet in 1661 with 340 year period. Strongly condensed with a stellar nucleus. Long tail over 3 degree is visible. It was reported as 3.0-3.5 mag by naked eye, 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)
Apr. 6 0 43.39 43 31.3 0.538 0.660 37 3.8 100.0 323.4 4:52 (237,-33)
Apr. 13 23 51.93 52 27.0 0.472 0.767 47 4.1 112.4 310.4 4:57 (221,-23)
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New comet. Though locating low now, it is strongly condensed and easy to see. It will be 6.5 mag in late April. In the Northern Hemisphere, it is observable only until mid April being very low in the morning sky. After the perihelion passage, it will be observable in the Southern Hemisphere, but it locates very low in the evening sky. It will locate high after August, but will be fainter than 15 mag 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. 6 23 23.37 23 26.4 1.255 0.610 28 7.8 127.2 59.3 4:52 (247, -8)
Apr. 13 0 28.85 30 8.4 1.189 0.507 24 6.9 146.6 71.6 4:57 (245,-18)
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It suddenly bursted out in late January and reached to 2.5 mag. Then it is fading rapidly, and now it is 9.0 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 19 7.54 6 6.3 1.246 1.559 87 9.7 49.2 342.3 4:52 (209, 45)
Apr. 13 18 59.47 11 29.3 1.260 1.668 94 10.1 49.1 337.1 4:57 (193, 43)
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After it brightened rapidly and reached to 10 mag in February, it did not brightened more and kept 10 mag all over though it became closer to the earth. It may fade out very soon after this. It is observable all through a night in the Northern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 22 29.61 81 17.5 0.638 1.057 76 10.0 133.4 14.7 4:52 (190,-31)
Apr. 13 8 35.23 80 19.9 0.568 1.101 84 9.9 169.7 164.8 19:16 (180,-24)
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New comet. It will move northwards after this. It keeps observable until it fades out in the Northerm Hemisphere. It keeps brighter than 12 mag until May. It will approach to C/2002 C1 ( Ikeya-Zhang ) around May 1.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 19 18.89 28 11.5 1.368 1.588 82 10.2 75.3 6.9 4:52 (202, 23)
Apr. 13 19 23.08 36 53.3 1.373 1.628 84 10.3 74.0 4.6 4:57 (193, 17)
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The condition in this return is bad. It is not observable until June in the Southern Hemisphere, until August in the Northern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 0 37.26 -4 43.8 2.485 1.522 12 12.3 45.6 74.9 4:52 (281, -7)
Apr. 13 0 57.57 -3 21.8 2.513 1.559 13 12.1 44.3 75.0 4:57 (278, -5)
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It will be observable at 13 mag until September. It is fainter than 14 mag by CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 0 16.02 65 1.7 3.958 3.551 59 12.9 17.9 32.3 4:52 (210,-34)
Apr. 13 0 27.19 66 51.0 3.963 3.548 58 12.9 18.9 31.4 4:57 (208,-32)
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Takuo Kojima reported that it was in outburst at 14.4 mag on Mar. 28.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 20 55.07 -19 7.9 6.196 5.847 65 13.7 8.1 71.2 4:52 (261, 46)
Apr. 13 20 58.65 -18 50.2 6.091 5.845 71 13.7 7.3 70.5 4:57 (256, 52)
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It was as faint as 16.5 mag in mid March. It may reach only to 13.5 mag in May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 18 52.17 0 3.2 0.873 1.347 91 14.8 53.5 99.9 4:52 (206, 52)
Apr. 13 19 17.12 -1 7.2 0.823 1.319 92 14.5 55.3 101.4 4:57 (204, 54)
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Fading now. It is observable in good condition until to fade out.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 11 41.30 50 28.6 1.827 2.492 120 14.7 14.5 217.3 22:42 (180, 5)
Apr. 13 11 35.80 49 1.5 1.920 2.542 117 14.9 14.7 205.9 22:09 (180, 6)
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Getting higher in the morning sky. It will be 13 mag in June and July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 20 32.90 16 43.9 3.289 3.019 65 14.9 7.1 322.3 4:52 (224, 25)
Apr. 13 20 30.17 17 25.1 3.143 2.986 71 14.7 9.2 311.6 4:57 (216, 29)
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It bursted out in early February and reached to 13.5 mag. Then it did not become so fainter. It must be brighter than this ephemeris. But the condition is worst. It always locates 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)
Apr. 6 2 46.38 17 1.3 2.097 1.306 28 14.8 56.0 70.7 19:12 (109, -2)
Apr. 13 3 11.89 19 0.6 2.167 1.364 27 15.2 53.4 72.7 19:03 (112, -2)
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It is observable until autumn at 15 mag. It was reported as 14 mag visually, but as 16 mag by CCD, so there is a large difference.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 9 55.62 72 27.9 4.866 5.069 95 15.0 10.5 185.7 20:57 (180,-17)
Apr. 13 9 54.90 71 12.7 4.935 5.083 92 15.0 11.1 179.6 20:29 (180,-16)
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It will be observable at 15 mag until August when it becomes low in the evening sky. It is already brighter than 15.0 mag even by CCD, and observed visually these days.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 11 8.19 20 26.7 2.464 3.309 141 15.0 8.1 272.3 22:09 (180, 35)
Apr. 13 11 4.54 20 24.8 2.504 3.288 134 15.0 6.5 262.4 21:38 (180, 35)
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It will be 11 mag in 2003 February. Although it was reported as 13.5 mag visually, it was reported as 15.5 mag by CCD, a bit 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)
Apr. 6 10 16.63 -7 24.2 4.396 5.200 139 15.2 17.6 296.2 21:17 (180, 62)
Apr. 13 10 9.52 -6 30.1 4.428 5.149 131 15.1 16.3 297.9 20:43 (180, 61)
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It will be 15 mag in spring and summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 17 8.85 4 4.7 4.847 5.372 116 15.2 11.9 351.6 4:13 (180, 51)
Apr. 13 17 7.72 5 28.0 4.752 5.359 122 15.2 12.4 345.5 3:44 (180, 50)
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It will be 10.5 mag in 2003 spring. It was a bit fainter than this ephemeris, around 16 mag recently.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 5 59.63 26 55.1 3.004 2.892 73 15.4 14.8 93.5 19:12 (149, 21)
Apr. 13 6 7.75 26 48.2 3.070 2.866 68 15.4 16.3 93.8 19:03 (147, 20)
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Fading rapidly after February. It will be fainter than 16 mag in May when it becomes low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 4 47.16 16 20.5 2.316 1.954 56 15.4 36.2 75.0 19:12 (128, 20)
Apr. 13 5 3.95 17 20.3 2.431 2.010 53 15.7 34.8 76.9 19:03 (129, 19)
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The condition in this return is bad. We can observe it only until August before perihelion passage when it becomes to 13 mag 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)
Apr. 6 11 52.35 7 48.9 1.770 2.725 158 15.7 13.9 294.4 22:53 (180, 47)
Apr. 13 11 46.65 8 25.7 1.768 2.684 150 15.5 12.3 292.5 22:20 (180, 47)
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It will reach to 13 mag at the end of this year. In the northern hemisphere, it keeps low in the south after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 16 3.30 -37 42.2 2.530 3.241 127 15.8 6.2 195.9 3:07 ( 0, 87)
Apr. 13 16 1.64 -38 23.0 2.405 3.185 134 15.7 6.8 214.8 2:38 ( 0, 87)
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Asteroid with a cometary orbit of 6.8 year period. Fading now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 10 18.60 27 19.2 0.850 1.669 128 15.7 22.5 140.0 21:20 (180, 28)
Apr. 13 10 26.51 25 17.5 0.923 1.707 124 16.0 23.6 137.6 21:01 (180, 30)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 10 35.52 27 50.0 1.743 2.519 131 15.9 14.0 217.8 21:36 (180, 27)
Apr. 13 10 31.75 26 28.2 1.786 2.501 125 15.9 13.6 205.1 21:05 (180, 29)
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It keeps brighter than 17 mag until August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 15 59.37 -16 43.7 3.075 3.845 134 16.1 3.7 277.3 3:04 (180, 72)
Apr. 13 15 57.16 -16 39.6 3.012 3.853 142 16.1 5.4 277.5 2:34 (180, 72)
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Fading. It will be about 18 mag in June when it becomes low in the evening.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 12 23.97 -13 19.0 4.517 5.502 168 16.7 15.9 274.9 23:24 (180, 68)
Apr. 13 12 16.53 -13 8.6 4.585 5.551 162 16.8 15.2 275.9 22:49 (180, 68)
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Fading very slowly. It was brighter than the ephemeris recently, reported around 16 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 9 19.78 15 53.0 6.219 6.794 121 16.7 9.0 301.9 20:21 (180, 39)
Apr. 13 9 16.37 16 24.4 6.361 6.825 113 16.8 7.7 303.4 19:50 (180, 39)
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It bursted out and reached to 15 mag in early January. It is getting fainter rather rapidly these days.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 8 42.11 24 33.4 1.602 2.164 110 16.9 15.6 105.2 19:44 (180, 30)
Apr. 13 8 50.23 24 1.8 1.697 2.189 105 17.2 17.4 106.4 19:25 (180, 31)
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It keeps 17 mag locating at the same altitude until October in the Northerm Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 18 37.69 -16 47.0 11.169 11.332 96 17.1 1.2 53.0 4:52 (214, 69)
Apr. 13 18 38.00 -16 42.2 11.068 11.346 103 17.1 0.7 26.1 4:57 (193, 71)
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New periodic comet. Now it is at the peak, and it will fade out soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 12 25.36 -18 51.7 0.883 1.867 165 17.4 15.8 239.3 23:26 (180, 74)
Apr. 13 12 19.06 -19 41.8 0.903 1.879 160 17.5 13.3 241.7 22:52 (180, 75)
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Already passed the peak and fading now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 6 8 54.20 20 23.0 2.888 3.423 114 17.5 3.0 104.8 19:56 (180, 35)
Apr. 13 8 56.10 20 15.6 2.983 3.426 107 17.6 4.9 105.9 19:30 (180, 35)
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