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Image:
2000 Feb. 12
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It will be 3 mag in 2000 July, but it is a few mag fainter actually. Not observable now. In the Northern Hemisphere, it will appear at dawn in late May as 10 mag, then keeps observable until early August. In the Southern Hemisphere, it locates very low between late May and mid June, however, it locates high after late July.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 1 46.46 27 18.0 2.788 1.838 15 11.9 6.9 50.2 5:04 (252,-23)
Apr. 29 1 49.43 27 52.3 2.685 1.738 15 11.5 7.9 47.7 5:09 (248,-18)
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Image:
1998 Dec. 5
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Only southern people can observe it. Recently it was observed as 12 mag. It will appear again in 2000 August as 13 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 22 52.05 -50 36.9 3.823 3.692 74 13.0 6.6 47.9 5:04 (309, 47)
Apr. 29 22 55.18 -50 9.3 3.765 3.715 79 13.0 5.0 46.6 5:09 (309, 51)
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It is expected to be bright as 7 mag in late 2000. Northern people cannot observe it until December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 2 33.07 -31 41.7 4.047 3.406 44 13.4 18.2 82.8 18:52 ( 61, 14)
Apr. 29 2 43.22 -31 27.7 3.949 3.331 46 13.2 19.2 85.2 18:45 ( 60, 12)
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Image:
1999 June 12
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The altitude will be 23 deg at best in the Northern Hemisphere. Now it is not in outburst.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 17 17.07 -32 14.6 5.367 6.070 130 13.5 2.8 256.4 3:16 (180, 87)
Apr. 29 17 15.27 -32 18.6 5.285 6.068 137 13.5 3.8 263.2 2:47 (180, 87)
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Only southern people can observe it. Northern people can never see it again.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 4 53.62 -70 22.5 10.917 10.924 87 13.6 4.7 51.6 18:52 ( 23, 43)
Apr. 29 4 58.95 -70 3.4 10.951 10.972 88 13.6 4.7 58.1 18:45 ( 24, 41)
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Image:
1999 July 31
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It is only observable in the Southern Hemisphere until the end of 2001.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 22 25.52 -59 13.3 3.292 3.330 83 13.8 26.7 131.9 5:04 (323, 50)
Apr. 29 22 44.64 -61 20.2 3.204 3.316 87 13.7 27.8 132.1 5:09 (327, 51)
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Only observable in the Southern Hemisphere. In the Northern Hemisphere, it appears at dawn in 2000 June, when it will be already fainter than 15 mag. It was fainter than 12.0 mag on Feb. 11 by KenIchi Kadota, Ageo.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 22 48.15 -15 56.2 2.224 1.845 55 13.9 31.7 74.5 5:04 (264, 37)
Apr. 29 23 2.54 -14 58.0 2.204 1.882 58 14.1 30.1 74.4 5:09 (260, 40)
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Not observable at all 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. 22 2 7.53 18 1.4 2.334 1.339 6 14.1 53.6 70.3 18:52 ( 99,-20)
Apr. 29 2 32.57 20 1.1 2.340 1.342 5 14.2 53.4 72.2 18:45 (101,-20)
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Image:
1999 Dec. 30
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Because it is far away, it keeps 14 mag until late 2000. It will not be observable until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 0 23.33 13 41.5 5.103 4.200 23 14.3 16.6 86.1 5:04 (253, 1)
Apr. 29 0 31.21 13 48.9 5.064 4.201 27 14.3 16.3 86.5 5:09 (249, 5)
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Image:
2000 Jan. 8
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It will be 13 mag at good position in 2000 September. It was reported as 13.5 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 22 44.43 37 42.2 4.252 3.693 50 14.8 15.1 5.3 5:04 (220, 1)
Apr. 29 22 44.93 39 31.3 4.151 3.656 54 14.7 16.1 0.8 5:09 (214, 4)
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Image:
2000 Jan. 28
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It will be observable as 15 mag with a good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 16 16.19 38 22.2 6.552 7.111 120 15.1 8.6 273.3 2:16 (180, 17)
Apr. 29 16 10.87 38 22.7 6.530 7.112 121 15.1 9.2 267.7 1:43 (180, 17)
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Image:
2000 Feb. 11
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It will keep 20 deg high in the Northern Hemisphere until mid June, but it will fade out rapidly.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 13 37.60 -32 37.5 1.298 2.265 158 15.2 13.8 253.5 23:33 (180, 88)
Apr. 29 13 30.60 -32 57.8 1.335 2.299 157 15.5 12.0 260.5 22:58 (180, 88)
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Image:
2000 Feb. 17
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It will fade out gradually after this, but it can be observed as 17.5 mag in 2001 spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 11 22.94 39 45.3 3.612 4.159 116 15.3 21.0 242.5 21:18 (180, 15)
Apr. 29 11 12.56 38 33.5 3.736 4.192 110 15.4 19.2 236.1 20:40 (180, 17)
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Image:
2000 Jan. 15
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It was reported as 13.5-14.0 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 7 14.86 26 53.9 3.802 3.665 74 16.2 11.9 98.8 18:52 (156, 24)
Apr. 29 7 21.30 26 40.2 3.893 3.659 69 16.2 13.0 99.1 18:45 (152, 23)
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New comet with a period of 5.4 years. It must be 12 mag and moving fast in March, when it was 0.1 AU from the earth. 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. 22 18 4.48 0 5.5 0.285 1.167 118 16.3 24.0 338.3 4:03 (180, 55)
Apr. 29 17 59.10 2 18.6 0.318 1.217 124 17.1 21.2 318.7 3:31 (180, 53)
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Image:
1999 June 12
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No observations reported since 1999 June. The altitude will be 38 deg at best after this 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. 22 17 4.48 -17 39.0 9.265 10.004 135 16.3 2.4 289.5 3:04 (180, 73)
Apr. 29 17 3.24 -17 33.3 9.201 10.016 142 16.3 2.9 286.2 2:35 (180, 73)
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Image:
2000 Feb. 12
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It is fading out slowly now, but it will be too low to observe soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 7 4.10 8 48.3 1.860 1.865 74 16.4 34.4 99.7 18:52 (144, 39)
Apr. 29 7 19.99 8 6.2 1.953 1.901 71 16.5 34.0 100.4 18:45 (142, 39)
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It kept brightening even after perihelion passage and reached to 15.5 mag in mid April. But it began to fade out rapidly after that.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 8 35.23 21 58.7 1.468 1.828 93 16.4 32.3 118.6 18:52 (175, 33)
Apr. 29 8 49.47 20 10.4 1.551 1.854 90 16.9 32.5 118.3 18:45 (173, 35)
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Image:
2000 Jan. 28
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Gradually fading. The altitude in the Northerm Hemisphere will not high after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 9 7.97 -19 24.5 4.856 5.283 109 16.7 4.4 319.4 19:04 (180, 74)
Apr. 29 9 6.92 -19 2.4 5.009 5.344 104 16.8 3.3 334.7 18:45 (172, 74)
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Image:
2000 Feb. 11
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It was in fact a bit 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. 22 11 50.51 11 15.0 1.238 2.110 140 16.7 1.2 192.1 21:46 (180, 44)
Apr. 29 11 51.03 11 0.6 1.291 2.117 133 16.8 3.8 139.8 21:20 (180, 44)
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Recovered by LINEAR. It keeps 17 mag for a while, however, it will be lower. It may be 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. 22 11 18.61 -2 3.1 1.751 2.593 138 16.9 3.6 338.3 21:15 (180, 57)
Apr. 29 11 18.57 -1 43.0 1.800 2.584 131 16.9 2.7 26.0 20:47 (180, 57)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 11 20.94 -2 8.7 3.175 3.992 139 16.9 20.6 300.9 21:16 (180, 57)
Apr. 29 11 13.40 -0 59.7 3.333 4.059 130 17.1 17.3 302.0 20:41 (180, 56)
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Image:
2000 Jan. 28
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It keeps 16 mag at good position until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 10 5.19 38 15.8 4.741 5.102 105 17.0 1.1 128.8 20:01 (180, 17)
Apr. 29 10 6.06 38 8.7 4.869 5.133 99 17.0 2.4 123.1 19:35 (180, 17)
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Image:
1999 May 31
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Fading gradually. It keeps 17-18 mag at good position until October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 20 37.23 25 25.6 6.114 5.959 76 17.2 12.0 2.7 5:04 (203, 26)
Apr. 29 20 37.24 26 49.9 6.054 5.983 81 17.2 12.1 357.5 5:09 (195, 27)
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Image:
2000 Feb. 17
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It is fading out not too rapidly now, but it will be too low to observe soon. It is 14 mag still now visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 5 20.14 30 30.0 2.890 2.365 49 17.2 1.0 313.6 18:52 (136, 7)
Apr. 29 5 20.20 30 35.4 3.048 2.410 42 17.5 1.2 43.4 18:45 (132, 4)
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It keeps 17 mag at good position until August. It was bright as 16.4 mag on Apr. 15.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 17 55.25 2 26.7 4.942 5.510 119 17.4 14.4 291.1 3:54 (180, 53)
Apr. 29 17 48.57 3 2.5 4.844 5.508 126 17.3 16.0 288.3 3:20 (180, 52)
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Image:
1999 June 30
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It keeps the good condition until autumn. It will fade out gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 17 31.02 26 5.3 6.117 6.619 115 17.4 8.2 343.6 3:30 (180, 29)
Apr. 29 17 29.58 26 58.4 6.105 6.655 119 17.5 8.0 336.4 3:01 (180, 28)
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Image:
1999 Jan. 22
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A Centaur asteroid. The perihelion passage is in 2004. It will keep the current brightness over 10 years after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 9 36.81 0 58.4 12.897 13.328 113 17.6 0.8 320.8 19:33 (180, 54)
Apr. 29 9 36.70 1 2.2 13.000 13.325 106 17.6 0.5 359.4 19:06 (180, 54)
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Image:
2000 Feb. 9
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It was fading gradually after November, but now it is diffused.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 9 30.35 7 29.0 2.902 3.383 110 17.6 4.9 68.4 19:27 (180, 48)
Apr. 29 9 32.90 7 39.0 3.036 3.422 103 17.8 6.3 80.3 19:02 (180, 47)
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A Centaur asteroid. The perihelion passage is in 2004. It will keep the current brightness over 10 years after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 8 25.67 28 53.0 2.709 2.884 89 18.0 15.0 245.5 18:52 (173, 26)
Apr. 29 8 19.49 28 9.7 2.893 2.924 81 18.1 11.5 237.9 18:45 (166, 25)
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It is not observable around the perihelion passage. In July when it will be lower than 20 deg, it reaches only to 16.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Apr. 22 10 29.18 22 15.6 1.860 2.494 117 18.1 5.1 213.1 20:25 (180, 33)
Apr. 29 10 28.49 21 41.2 1.901 2.454 111 18.0 5.5 179.2 19:57 (180, 33)
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