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Image:
1999 Oct. 24
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Only southern people can observe it. Northern people can never see it again. Fading our very slowly after the approach to the earth.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 0 40.36 -72 23.2 1.462 1.575 77 10.8 23.4 312.6 19:47 ( 0,-17)
Dec. 11 0 20.91 -70 32.8 1.632 1.659 74 11.2 18.2 327.3 19:01 ( 0,-15)
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Image:
1999 Nov. 28
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The component A has brightened rapidly and observed as 11 mag visually. On the other hand, the component D has been very diffused, about to disappearing.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 20 2.56 -11 25.3 0.718 0.754 49 11.3 60.3 90.4 18:18 ( 52, 26)
Dec. 11 20 33.06 -11 34.8 0.625 0.750 49 11.0 68.3 92.3 18:18 ( 52, 26)
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Not observable around the perihelion passage at all. When it appears at dawn in 2000 June, it will be already 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)
Dec. 4 15 43.73 -17 25.8 2.468 1.529 13 12.1 47.1 107.9 5:21 (288, -4)
Dec. 11 16 5.99 -19 2.2 2.444 1.517 15 12.0 47.5 106.2 5:26 (291, -3)
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Image:
1999 Nov. 6
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Rapidly brightening and it is 11 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 20 29.23 53 10.8 1.642 1.918 90 12.4 7.4 231.8 18:18 (135, 57)
Dec. 11 20 26.03 52 48.4 1.717 1.932 86 12.5 3.2 235.3 18:18 (133, 52)
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Image:
1998 Dec. 5
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Only southern people can observe it. 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)
Dec. 4 17 6.77 -76 16.3 3.918 3.437 54 12.7 26.0 78.7 18:18 ( 17,-34)
Dec. 11 17 54.10 -75 25.2 3.943 3.439 52 12.7 25.6 70.3 18:18 ( 17,-33)
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Image:
1999 Nov. 30
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Appearing at dawn. It is about 13 mag, about 3 mag brighter than expected. It will be 11 mag in January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 12 21.19 -7 23.5 2.260 2.026 63 13.2 10.0 310.5 5:21 (318, 38)
Dec. 11 12 16.69 -6 30.5 2.082 2.011 72 13.0 14.7 306.8 5:26 (327, 43)
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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)
Dec. 4 6 21.05 -77 30.3 10.069 9.932 79 13.0 6.4 242.8 1:33 ( 0,-22)
Dec. 11 6 8.29 -77 46.9 10.126 9.983 78 13.0 6.3 252.4 0:53 ( 0,-23)
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Image:
1999 Oct. 20
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It was observed visually as 13 mag in October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 0 22.89 -5 19.1 0.894 1.555 111 13.1 36.0 21.2 19:32 ( 0, 50)
Dec. 11 0 29.86 -1 26.1 0.935 1.551 107 13.2 37.0 26.9 19:11 ( 0, 54)
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Image:
1999 Nov. 6
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Rapidly fading, but it may be a bit brighter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 22 28.09 -22 24.4 1.597 1.714 79 13.8 39.4 66.8 18:18 ( 11, 32)
Dec. 11 22 46.01 -20 33.0 1.685 1.748 76 14.2 38.8 65.5 18:18 ( 14, 33)
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Image:
1999 Nov. 5
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Because it is far away, it keeps 14 mag until late 2000, while Northern people can observe it under good condition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 21 44.97 17 46.1 4.345 4.366 84 14.1 14.8 124.7 18:18 ( 53, 65)
Dec. 11 21 51.15 16 50.3 4.423 4.350 79 14.1 15.1 119.8 18:18 ( 59, 60)
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Image:
1999 June 12
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Not observable. It will appear at dawn in 2000 January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 16 7.88 -28 36.5 7.082 6.112 9 14.1 11.8 100.5 5:21 (294,-15)
Dec. 11 16 14.01 -28 51.3 7.062 6.110 13 14.1 11.7 100.4 5:26 (298,-11)
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Image:
1999 Nov. 5
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Rapidly brightening. It will reach to 14 mag in December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 2 24.14 37 30.7 0.699 1.618 147 14.5 25.6 168.1 21:32 (180, 88)
Dec. 11 2 28.37 34 31.4 0.702 1.603 143 14.4 27.6 159.9 21:09 ( 0, 89)
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Image:
1999 Nov. 28
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It will be 3 mag in 2000 July. It keeps a good position until 2000 February when it will be 13 mag. It is 14 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 3 14.58 36 17.1 2.656 3.583 156 14.7 29.8 259.5 22:21 (180, 89)
Dec. 11 2 57.87 35 31.7 2.624 3.503 148 14.5 29.5 255.7 21:37 (180, 90)
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Image:
1999 Nov. 6
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Rapidly fading. It was already 14 mag in mid November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 22 25.49 3 29.7 2.360 2.528 88 14.8 11.9 161.0 18:18 ( 20, 57)
Dec. 11 22 27.72 2 21.1 2.581 2.618 81 15.1 10.1 146.4 18:18 ( 30, 54)
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Image:
1999 Nov. 8
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It turns to be in the morning sky. It will keep 14 mag until 2000 March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 14 32.16 30 11.4 4.019 3.638 60 14.9 1.6 58.5 5:21 (255, 36)
Dec. 11 14 32.67 30 22.0 3.956 3.656 65 14.9 2.2 11.7 5:26 (259, 42)
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Image:
1999 Nov. 4
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Appearing at dawn. It was observed as 15.4 mag on Oct. 17 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)
Dec. 4 10 56.10 -13 47.7 4.075 4.041 81 15.1 11.5 194.2 5:21 (346, 40)
Dec. 11 10 54.31 -15 4.6 4.025 4.104 87 15.2 11.7 203.1 5:26 (357, 40)
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Image:
1999 July 31
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It will reach to 13.5 mag in June, but will not be observable 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)
Dec. 4 18 45.09 -36 19.2 4.639 3.824 30 15.2 12.9 118.2 18:18 ( 47, -4)
Dec. 11 18 51.92 -37 1.7 4.651 3.791 26 15.1 13.5 116.8 18:18 ( 50, -8)
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Image:
1999 Nov. 8
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Although it was 14.7 mag on Oct. 10 by CCD, it is around 12 mag visually still now. It turns to be in the morning sky.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 14 48.13 57 11.6 2.261 2.349 82 15.1 30.8 24.4 5:21 (221, 40)
Dec. 11 14 59.56 60 34.0 2.274 2.440 87 15.4 32.3 22.6 5:26 (217, 43)
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Image:
1999 July 30
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Appearing at dawn, but it is still very low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 14 8.56 -19 17.3 3.344 2.602 35 15.2 1.2 129.8 5:21 (304, 12)
Dec. 11 14 8.70 -19 21.6 3.318 2.672 42 15.3 0.6 218.7 5:26 (310, 17)
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Image:
1999 Nov. 8
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Takuo Kojima, Chiyoda, recovered it on Nov. 4 as 15.9 mag. It keeps 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)
Dec. 4 12 28.26 4 30.4 2.141 1.974 66 15.5 33.0 124.3 5:21 (306, 46)
Dec. 11 12 40.81 2 19.8 2.070 1.967 70 15.4 32.4 125.3 5:26 (314, 48)
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Image:
1999 Oct. 10
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Appearing at dawn. 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)
Dec. 4 16 12.74 36 3.5 7.620 7.155 58 15.5 7.6 120.9 5:21 (239, 19)
Dec. 11 16 16.48 35 38.6 7.592 7.150 59 15.4 7.2 116.5 5:26 (242, 24)
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It is expected to be bright as 7 mag in late 2000. It keeps extremely low until 2000 January for nothern people, then they cannot observe it until 2000 December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 1 18.69 -42 53.8 4.551 4.825 100 15.6 6.6 284.1 20:27 ( 0, 12)
Dec. 11 1 15.01 -42 38.6 4.569 4.757 95 15.6 5.8 297.6 19:55 ( 0, 12)
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Image:
1999 Nov. 8
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After the perihelion passage, it is still getting brighter gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 5 6.98 14 10.0 1.068 2.045 169 15.8 12.8 287.1 0:19 ( 0, 69)
Dec. 11 5 1.10 14 38.5 1.092 2.071 171 15.9 12.7 290.1 23:41 ( 0, 70)
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Image:
1999 Nov. 5
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Although it locates at good position for a while, 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)
Dec. 4 3 17.52 55 26.7 0.967 1.854 143 16.1 14.3 181.1 22:25 (180, 70)
Dec. 11 3 18.20 53 36.8 0.979 1.861 142 16.2 17.1 172.9 21:59 (180, 72)
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Image:
1999 Oct. 17
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It keeps 16 mag and the good position until 2000 February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 8 40.11 24 30.5 1.711 2.417 125 16.4 3.5 138.5 3:51 ( 0, 80)
Dec. 11 8 40.50 24 13.8 1.659 2.431 132 16.3 2.3 200.0 3:24 ( 0, 79)
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Although it has passed the perihelion in 1998 September, it is unexpectedly bright.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 3 28.16 -27 5.5 4.544 5.207 127 16.4 12.2 302.7 22:36 ( 0, 28)
Dec. 11 3 23.05 -26 15.7 4.643 5.263 124 16.4 11.9 309.3 22:03 ( 0, 29)
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Image:
1999 Nov. 5
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It will be 14 mag at good position in 2000 September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 22 15.13 25 11.1 4.363 4.542 94 16.5 6.2 232.6 18:18 ( 53, 75)
Dec. 11 22 13.02 24 47.3 4.428 4.496 87 16.5 4.5 227.7 18:18 ( 67, 69)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 7 36.64 25 12.1 2.999 3.803 139 16.7 5.2 299.8 2:48 ( 0, 80)
Dec. 11 7 33.86 25 30.9 2.929 3.795 147 16.6 6.8 294.1 2:18 ( 0, 81)
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Image:
1999 Apr. 8
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It was 16.8 mag on Oct. 22, as bright as expected. It keeps 16 mag at good position until 2000 May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 10 35.03 22 35.0 4.270 4.534 99 16.7 8.9 39.8 5:21 (335, 76)
Dec. 11 10 37.57 23 25.7 4.191 4.560 105 16.7 8.8 29.5 5:21 ( 0, 78)
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Image:
1999 Nov. 8
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Although the condition is good, 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)
Dec. 4 3 51.11 10 58.6 4.631 5.584 163 16.8 15.8 283.6 22:58 ( 0, 66)
Dec. 11 3 44.02 11 25.0 4.704 5.621 156 16.9 15.0 284.8 22:24 ( 0, 66)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 8 20.20 49 59.3 1.442 2.200 128 16.9 6.5 342.9 3:31 (180, 75)
Dec. 11 8 17.51 50 39.8 1.426 2.229 134 17.0 7.6 314.7 3:01 (180, 74)
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Image:
1999 Oct. 20
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Appearing at dawn. It was observed as faint as 16.2 mag on Oct. 20 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)
Dec. 4 10 16.97 0 38.6 2.273 2.561 95 17.0 9.0 125.1 5:21 (357, 56)
Dec. 11 10 19.83 0 5.7 2.221 2.604 101 17.1 6.4 131.1 5:03 ( 0, 55)
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Image:
1999 Feb. 6
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Mother asteroid of Geminids. Very few observations have been reported and this object is in the M.P.E.C. CRITICAL-LIST.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 0 40.04 30 2.5 1.514 2.243 126 17.3 20.1 199.0 19:48 ( 0, 85)
Dec. 11 0 37.72 27 59.8 1.621 2.269 119 17.4 16.2 188.1 19:18 ( 0, 83)
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New comet. Although the condition is good until April, it will be only 17.5 mag at best.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 9 58.17 7 6.9 2.614 2.982 102 17.3 11.3 140.6 5:09 ( 0, 62)
Dec. 11 10 1.06 6 7.1 2.530 2.988 108 17.3 9.8 148.5 4:44 ( 0, 61)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 1 52.22 20 30.3 6.071 6.866 141 17.3 5.6 274.6 21:00 ( 0, 76)
Dec. 11 1 49.66 20 33.8 6.113 6.831 133 17.3 4.7 277.0 20:30 ( 0, 76)
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Image:
1999 Oct. 11
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It will soon become too faint and too low to observe.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 20 52.85 29 8.7 2.691 2.695 79 17.5 27.8 95.4 18:18 ( 88, 61)
Dec. 11 21 7.65 28 52.3 2.783 2.738 77 17.6 27.9 94.0 18:18 ( 90, 58)
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Image:
1999 Nov. 5
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Because it is extremely far away, it keeps brighter than 17 mag until late 2000.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 2 23.60 11 47.0 4.888 5.732 146 17.5 13.7 223.2 21:31 ( 0, 67)
Dec. 11 2 19.40 10 39.0 4.949 5.714 137 17.5 12.5 221.3 21:00 ( 0, 66)
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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)
Dec. 4 9 58.41 0 24.0 13.182 13.382 99 17.6 1.4 182.7 5:09 ( 0, 55)
Dec. 11 9 58.27 0 14.9 13.065 13.379 106 17.6 1.3 205.7 4:41 ( 0, 55)
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Image:
1999 Mar. 22
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Fading very slowly. After appearing at dawn, it was observed as 17.7 mag, as bright as expected.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 4 5 21.26 69 18.1 5.172 5.882 132 17.8 17.1 282.8 0:34 (180, 56)
Dec. 11 4 58.87 69 34.8 5.191 5.910 133 17.8 16.9 274.1 23:37 (180, 55)
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Fading very slowly. Akimasa Nakamura, Kuma, observed it on Nov. 4 and it was 17.7 mag, 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)
Dec. 4 2 44.56 10 53.0 3.934 4.815 150 18.1 6.9 266.0 21:52 ( 0, 66)
Dec. 11 2 41.53 10 51.0 4.004 4.824 142 18.1 5.8 269.3 21:22 ( 0, 66)
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