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It brightened rapidly after early April and reached to 4.5-5.0 mag in mid April. It is still 4 mag and strongly condensed after the perihelion passage. After now, it locates just on the horizon at dusk until early May in the Northern Hemisphere. In the Southern Hemisphere, it will be observable in May and June, but it only locates very low in the evening sky. It approaches to Mercury on May 4 down to 3 arcmin.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 3 8.45 29 59.8 1.233 0.451 20 4.0 135.8 109.1 20:13 (125, 2)
May 4 4 6.57 23 37.2 1.318 0.522 20 5.7 111.6 122.0 20:21 (117, 2)
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The return of comet in 1661 with 340 year period. It has been 0.5 mag brighter than this ephemeris since the perihelion passage.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 20 21.10 61 14.8 0.406 1.001 77 4.8 135.8 263.9 3:42 (210, 55)
May 4 18 25.13 55 44.2 0.410 1.119 94 5.3 135.7 238.7 3:32 (184, 69)
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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. However, they say it suddenly faded rapidly in late April. It is moving fast towards south and will be low in the evening sky in mid June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 9 26.55 40 39.3 0.614 1.213 93 10.5 148.7 175.2 20:13 (113, 76)
May 4 9 33.07 25 40.6 0.722 1.279 93 11.1 109.6 174.1 20:21 ( 71, 67)
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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 ) in early May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 19 26.00 53 6.9 1.458 1.720 86 10.7 63.8 358.8 3:42 (214, 67)
May 4 19 23.23 60 8.5 1.531 1.772 85 10.9 56.7 354.9 3:32 (198, 63)
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It suddenly bursted out in late January and reached to 2.5 mag. Then it had been fading rapidly down to 9.5 mag. But the fading became slower in April. It must be 1 mag or more 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. 27 18 36.94 21 20.0 1.318 1.880 107 11.0 46.7 325.3 3:42 (327, 74)
May 4 18 22.65 25 31.2 1.365 1.983 112 11.4 44.3 318.7 3:32 (354, 80)
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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. 27 1 36.35 -0 48.6 2.570 1.639 17 12.0 41.6 75.7 3:42 (257,-20)
May 4 1 54.85 0 20.9 2.598 1.682 19 12.3 40.2 76.2 3:32 (255,-19)
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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. 27 0 53.79 70 48.6 3.964 3.544 58 12.9 20.7 30.8 3:42 (201, 29)
May 4 1 10.28 72 55.1 3.963 3.544 58 12.9 21.6 31.4 3:32 (199, 30)
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New comet. Although it will be observable all after this in the Northern Hemisphere, it will be fainter gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 19 22.41 34 13.7 1.315 1.700 93 13.4 83.0 344.1 3:42 (268, 73)
May 4 19 6.27 43 29.4 1.306 1.727 95 13.5 83.8 338.8 3:32 (225, 78)
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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. 27 21 4.55 -18 19.3 5.872 5.841 83 13.6 5.5 68.8 3:42 (313, 21)
May 4 21 6.81 -18 6.4 5.760 5.840 89 13.5 4.5 67.4 3:32 (316, 24)
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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. 27 20 9.00 -4 8.7 0.740 1.279 92 14.0 58.6 104.9 3:42 (316, 41)
May 4 20 35.73 -6 1.4 0.707 1.266 93 13.8 59.8 106.7 3:32 (315, 38)
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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. 27 20 20.38 18 55.1 2.839 2.924 84 14.4 14.9 296.4 3:42 (288, 55)
May 4 20 12.76 19 41.5 2.685 2.896 91 14.3 18.7 290.6 3:32 (294, 60)
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It will be observable at 15 mag until August when it becomes low in the evening sky. It is brighter than this ephemeris recently, 14.5 mag even by CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 11 0.01 19 56.8 2.609 3.245 121 15.0 4.0 219.8 20:38 ( 0, 75)
May 4 10 59.25 19 31.9 2.672 3.224 114 15.0 4.1 187.3 20:21 ( 10, 74)
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It will be 15 mag in spring and summer. 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)
Apr. 27 17 3.59 8 16.6 4.594 5.333 133 15.1 13.2 334.9 2:45 ( 0, 63)
May 4 17 0.67 9 39.6 4.533 5.320 137 15.0 13.5 330.2 2:15 ( 0, 65)
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It will be 11 mag in 2003 February. Although it was reported as 13.5 mag visually, it is fainter than this ephemeris recently, fainter than 16 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. 27 9 57.46 -4 47.5 4.531 5.048 115 15.1 13.2 301.6 20:13 ( 14, 49)
May 4 9 52.60 -4 0.8 4.597 4.997 107 15.0 11.5 303.8 20:21 ( 29, 47)
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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. 27 9 58.01 68 31.2 5.081 5.111 86 15.1 12.1 169.5 20:13 (174, 56)
May 4 10 1.34 67 6.7 5.156 5.126 82 15.2 12.6 165.4 20:21 (168, 56)
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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. 27 11 37.71 9 14.2 1.796 2.601 134 15.3 7.5 286.5 21:16 ( 0, 64)
May 4 11 34.90 9 24.4 1.823 2.559 126 15.2 4.7 279.3 20:46 ( 0, 64)
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It will be 10.5 mag in 2003 spring. It was 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. 27 6 26.05 26 29.6 3.191 2.814 59 15.3 18.8 94.9 20:13 ( 99, 37)
May 4 6 36.07 26 17.1 3.245 2.788 54 15.2 19.9 95.6 20:21 (102, 32)
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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. 27 15 54.31 -39 32.9 2.185 3.074 146 15.4 9.3 242.7 1:36 ( 0, 15)
May 4 15 48.71 -39 59.2 2.091 3.018 151 15.2 10.7 252.4 1:03 ( 0, 15)
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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. 27 11 30.21 45 40.4 2.124 2.640 109 15.4 15.3 186.4 21:09 (180, 79)
May 4 11 29.81 43 52.2 2.234 2.689 105 15.6 15.7 178.3 20:41 (180, 81)
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It is brighter than this ephemeris recently, 15.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 10 28.82 23 23.4 1.894 2.468 113 15.9 13.9 179.8 20:13 ( 7, 78)
May 4 10 29.53 21 44.0 1.956 2.453 107 15.9 14.7 169.2 20:21 ( 36, 74)
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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. 27 15 50.50 -16 27.1 2.922 3.869 157 16.1 8.2 277.3 1:32 ( 0, 39)
May 4 15 46.31 -16 19.4 2.895 3.878 164 16.1 9.1 277.2 1:01 ( 0, 39)
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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. 27 10 43.91 21 13.8 1.088 1.787 117 16.4 25.1 133.4 20:23 ( 0, 76)
May 4 10 53.17 19 14.1 1.178 1.830 113 16.7 25.5 131.6 20:21 ( 14, 74)
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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. 27 9 11.33 17 16.2 6.665 6.887 98 16.9 5.1 309.0 20:13 ( 52, 64)
May 4 9 9.67 17 37.1 6.822 6.918 91 17.0 4.0 314.3 20:21 ( 65, 58)
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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. 27 12 3.18 -12 45.5 4.774 5.649 147 16.9 12.8 277.4 21:41 ( 0, 42)
May 4 11 57.45 -12 34.4 4.891 5.697 139 17.0 11.4 277.7 21:08 ( 0, 42)
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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. 27 18 37.73 -16 33.5 10.877 11.373 117 17.1 1.0 302.8 3:42 (349, 38)
May 4 18 37.17 -16 29.8 10.790 11.386 124 17.1 1.5 289.1 3:32 (354, 38)
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Not yet observed in this return. It is getting brighter in the morning sky. It will reach to 15.5 mag in July and August. It bursted out and became 6 mag brighter than this ephemeris in the previous return in 1996.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 19 10.52 -18 37.0 1.344 1.932 109 17.4 22.8 77.2 3:42 (340, 34)
May 4 19 21.09 -18 0.4 1.259 1.906 113 17.2 21.4 75.5 3:32 (342, 35)
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It will be fainter than 18 mag and low in the evening sky at the end of this month.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 27 9 2.52 19 48.9 3.182 3.432 95 17.7 8.4 106.8 20:13 ( 59, 65)
May 4 9 6.88 19 30.1 3.284 3.436 90 17.8 10.0 107.1 20:21 ( 68, 59)
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