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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. It will pass by M72, M73 and NGC 7009 between Dec. 15 and 17.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 20 33.06 -11 34.8 0.625 0.750 49 11.0 68.3 92.3 18:18 ( 52, 26)
Dec. 18 21 8.28 -12 3.4 0.535 0.764 50 10.8 80.6 94.2 18:21 ( 50, 27)
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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. 11 0 20.91 -70 32.8 1.632 1.659 74 11.2 18.2 327.3 19:01 ( 0,-15)
Dec. 18 0 11.32 -68 50.1 1.796 1.744 70 11.5 14.7 341.2 18:24 ( 0,-14)
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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. 11 16 5.99 -19 2.2 2.444 1.517 15 12.0 47.5 106.2 5:26 (291, -3)
Dec. 18 16 28.81 -20 28.9 2.422 1.508 16 11.9 47.7 104.2 5:31 (293, -3)
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Image:
1999 Nov. 6
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It is getting diffused in December visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 20 26.03 52 48.4 1.717 1.932 86 12.5 3.2 235.3 18:18 (133, 52)
Dec. 18 20 25.02 52 45.6 1.788 1.950 84 12.7 1.0 352.9 18:21 (132, 47)
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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. 11 17 54.10 -75 25.2 3.943 3.439 52 12.7 25.6 70.3 18:18 ( 17,-33)
Dec. 18 18 35.37 -74 13.5 3.969 3.441 51 12.7 25.0 63.5 18:21 ( 19,-32)
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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. 11 12 16.69 -6 30.5 2.082 2.011 72 13.0 14.7 306.8 5:26 (327, 43)
Dec. 18 12 9.94 -5 18.6 1.898 2.001 81 12.7 21.0 304.6 5:31 (340, 48)
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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. 11 6 8.29 -77 46.9 10.126 9.983 78 13.0 6.3 252.4 0:53 ( 0,-23)
Dec. 18 5 54.86 -77 56.3 10.180 10.034 78 13.1 6.1 262.2 0:12 ( 0,-23)
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Image:
1999 Oct. 20
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It was 12-13 mag visually in October and November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 0 29.86 -1 26.1 0.935 1.551 107 13.2 37.0 26.9 19:11 ( 0, 54)
Dec. 18 0 38.45 2 21.9 0.981 1.550 104 13.3 37.8 31.9 18:52 ( 0, 58)
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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. It was 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)
Dec. 11 21 51.15 16 50.3 4.423 4.350 79 14.1 15.1 119.8 18:18 ( 59, 60)
Dec. 18 21 57.74 16 1.0 4.501 4.336 74 14.1 15.4 115.2 18:21 ( 65, 55)
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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. 11 16 14.01 -28 51.3 7.062 6.110 13 14.1 11.7 100.4 5:26 (298,-11)
Dec. 18 16 20.09 -29 5.8 7.030 6.108 18 14.1 11.5 100.3 5:31 (301, -6)
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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. 11 22 46.01 -20 33.0 1.685 1.748 76 14.2 38.8 65.5 18:18 ( 14, 33)
Dec. 18 23 3.27 -18 38.6 1.776 1.784 74 14.7 38.2 64.5 18:21 ( 18, 34)
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Image:
1999 Nov. 5
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Now at the peak. It is around 13 mag visually, much 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. 11 2 28.37 34 31.4 0.702 1.603 143 14.4 27.6 159.9 21:09 ( 0, 89)
Dec. 18 2 34.82 31 30.7 0.714 1.590 138 14.3 28.9 151.6 20:48 ( 0, 86)
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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. 11 2 57.87 35 31.7 2.624 3.503 148 14.5 29.5 255.7 21:37 (180, 90)
Dec. 18 2 42.03 34 34.8 2.612 3.422 139 14.4 28.3 252.0 20:54 ( 0, 90)
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Image:
1999 Nov. 8
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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. 11 14 32.67 30 22.0 3.956 3.656 65 14.9 2.2 11.7 5:26 (259, 42)
Dec. 18 14 32.61 30 42.1 3.885 3.674 70 14.9 3.6 348.6 5:31 (262, 49)
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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. 11 18 51.92 -37 1.7 4.651 3.791 26 15.1 13.5 116.8 18:18 ( 50, -8)
Dec. 18 18 59.21 -37 44.6 4.652 3.758 22 15.1 14.2 115.9 18:21 ( 52,-12)
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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. 11 22 27.72 2 21.1 2.581 2.618 81 15.1 10.1 146.4 18:18 ( 30, 54)
Dec. 18 22 30.65 1 30.1 2.798 2.707 74 15.5 9.3 132.0 18:21 ( 39, 50)
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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. 11 10 54.31 -15 4.6 4.025 4.104 87 15.2 11.7 203.1 5:26 (357, 40)
Dec. 18 10 51.65 -16 18.2 3.975 4.168 94 15.2 12.1 212.0 5:07 ( 0, 39)
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Image:
1999 July 30
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Appearing at dawn. No observations reported after Aug. 10.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 14 8.70 -19 21.6 3.318 2.672 42 15.3 0.6 218.7 5:26 (310, 17)
Dec. 18 14 8.15 -19 23.8 3.279 2.742 49 15.4 1.9 266.6 5:31 (316, 22)
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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. 11 12 40.81 2 19.8 2.070 1.967 70 15.4 32.4 125.3 5:26 (314, 48)
Dec. 18 12 52.93 0 8.7 2.000 1.963 73 15.3 31.6 126.4 5:31 (322, 48)
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Image:
1999 Nov. 8
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It was extremely diffused on Nov. 8 by KenIchi Kadota, Ageo. No observations reported after that.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 14 59.56 60 34.0 2.274 2.440 87 15.4 32.3 22.6 5:26 (217, 43)
Dec. 18 15 11.96 64 8.0 2.293 2.529 92 15.6 33.5 21.0 5:31 (212, 44)
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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. 11 16 16.48 35 38.6 7.592 7.150 59 15.4 7.2 116.5 5:26 (242, 24)
Dec. 18 16 20.08 35 18.8 7.559 7.145 61 15.4 6.6 111.8 5:31 (245, 29)
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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. 11 1 15.01 -42 38.6 4.569 4.757 95 15.6 5.8 297.6 19:55 ( 0, 12)
Dec. 18 1 12.19 -42 16.4 4.588 4.689 89 15.5 5.2 313.7 19:25 ( 0, 13)
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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. 11 5 1.10 14 38.5 1.092 2.071 171 15.9 12.7 290.1 23:41 ( 0, 70)
Dec. 18 4 55.62 15 10.8 1.129 2.098 166 16.1 11.6 294.7 23:08 ( 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. 11 3 18.20 53 36.8 0.979 1.861 142 16.2 17.1 172.9 21:59 (180, 72)
Dec. 18 3 20.84 51 31.9 1.000 1.871 141 16.2 19.2 165.4 21:34 (180, 74)
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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. 11 8 40.50 24 13.8 1.659 2.431 132 16.3 2.3 200.0 3:24 ( 0, 79)
Dec. 18 8 39.31 23 59.8 1.614 2.446 139 16.3 4.2 244.3 2:55 ( 0, 79)
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Although it has passed the perihelion in 1998 September, it is unexpectedly bright still now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 3 23.05 -26 15.7 4.643 5.263 124 16.4 11.9 309.3 22:03 ( 0, 29)
Dec. 18 3 18.57 -25 19.9 4.753 5.318 120 16.5 11.6 316.1 21:31 ( 0, 30)
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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. 11 22 13.02 24 47.3 4.428 4.496 87 16.5 4.5 227.7 18:18 ( 67, 69)
Dec. 18 22 11.71 24 29.1 4.493 4.450 81 16.4 2.8 219.9 18:21 ( 75, 63)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 7 33.86 25 30.9 2.929 3.795 147 16.6 6.8 294.1 2:18 ( 0, 81)
Dec. 18 7 30.24 25 50.8 2.872 3.787 155 16.6 8.2 290.5 1:46 ( 0, 81)
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Image:
1999 Apr. 8
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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. 11 10 37.57 23 25.7 4.191 4.560 105 16.7 8.8 29.5 5:21 ( 0, 78)
Dec. 18 10 39.42 24 21.8 4.116 4.586 112 16.7 8.9 19.1 4:55 ( 0, 79)
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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. 11 3 44.02 11 25.0 4.704 5.621 156 16.9 15.0 284.8 22:24 ( 0, 66)
Dec. 18 3 37.39 11 52.2 4.796 5.658 148 16.9 13.9 286.5 21:50 ( 0, 67)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 8 17.51 50 39.8 1.426 2.229 134 17.0 7.6 314.7 3:01 (180, 74)
Dec. 18 8 12.33 51 12.6 1.417 2.260 139 17.1 9.4 294.9 2:28 (180, 74)
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Image:
1999 Oct. 20
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It was 16.0 mag on Dec. 7 by Akimasa Nakamura, Kuma, 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. 11 10 19.83 0 5.7 2.221 2.604 101 17.1 6.4 131.1 5:03 ( 0, 55)
Dec. 18 10 21.47 -0 20.1 2.171 2.646 108 17.2 3.8 144.9 4:37 ( 0, 55)
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Although the condition is good until April, it will be only 17 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. 11 10 1.06 6 7.1 2.530 2.988 108 17.3 9.8 148.5 4:44 ( 0, 61)
Dec. 18 10 2.94 5 10.6 2.451 2.996 114 17.2 8.3 159.6 4:18 ( 0, 60)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Dec. 11 1 49.66 20 33.8 6.113 6.831 133 17.3 4.7 277.0 20:30 ( 0, 76)
Dec. 18 1 47.56 20 38.5 6.167 6.795 126 17.3 3.8 281.7 20:00 ( 0, 76)
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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. 11 0 37.72 27 59.8 1.621 2.269 119 17.4 16.2 188.1 19:18 ( 0, 83)
Dec. 18 0 37.50 26 17.6 1.733 2.293 112 17.6 13.3 174.3 18:51 ( 0, 81)
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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. 11 2 19.40 10 39.0 4.949 5.714 137 17.5 12.5 221.3 21:00 ( 0, 66)
Dec. 18 2 15.77 9 35.3 5.023 5.697 129 17.6 11.2 218.7 20:28 ( 0, 65)
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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. 11 9 58.27 0 14.9 13.065 13.379 106 17.6 1.3 205.7 4:41 ( 0, 55)
Dec. 18 9 57.88 0 7.3 12.953 13.376 113 17.6 1.5 227.2 4:14 ( 0, 55)
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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. 11 21 7.65 28 52.3 2.783 2.738 77 17.6 27.9 94.0 18:18 ( 90, 58)
Dec. 18 21 22.45 28 40.8 2.878 2.782 74 17.7 27.8 92.5 18:21 ( 91, 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. 11 4 58.87 69 34.8 5.191 5.910 133 17.8 16.9 274.1 23:37 (180, 55)
Dec. 18 4 36.53 69 33.6 5.226 5.939 132 17.8 16.5 265.4 22:47 (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. 11 2 41.53 10 51.0 4.004 4.824 142 18.1 5.8 269.3 21:22 ( 0, 66)
Dec. 18 2 39.09 10 52.1 4.086 4.832 135 18.2 4.5 274.8 20:52 ( 0, 66)
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