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Image:
2000 Jan. 15
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It brightened after the perihelion passage and reached to 10 mag. Now is the peak.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 9 39.37 16 31.4 1.039 2.010 166 10.6 111.8 296.5 1:12 (180, 39)
Feb. 5 8 48.42 21 55.0 1.043 2.024 172 10.6 111.3 292.2 23:43 (180, 33)
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Image:
2000 Jan. 8
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The component A was 10 mag in early January. Then it faded out rapidly and reached to 12 mag in late January. The component D was not observed since January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 3 38.77 -9 18.3 0.377 1.115 100 11.6 126.9 78.2 20:47 (134, 56)
Feb. 5 4 30.01 -6 22.8 0.444 1.192 106 12.4 97.4 76.1 20:39 (148, 57)
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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)
Jan. 29 18 51.82 -24 48.9 2.338 1.523 26 11.9 46.2 90.8 3:37 (296, 6)
Feb. 5 19 15.39 -24 45.9 2.330 1.537 28 12.0 45.5 88.5 3:47 (295, 8)
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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)
Jan. 29 21 4.12 -64 24.9 4.090 3.485 46 12.8 20.5 46.2 20:47 ( 22, 19)
Feb. 5 21 19.17 -62 46.8 4.099 3.496 46 12.9 19.6 45.6 20:39 ( 23, 17)
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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)
Jan. 29 4 47.49 -76 31.9 10.475 10.334 79 13.2 5.4 320.1 20:47 ( 3, 48)
Feb. 5 4 41.37 -76 1.3 10.518 10.384 79 13.3 5.3 328.9 20:39 ( 5, 48)
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Image:
2000 Jan. 8
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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 keeps the same brightness recently.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 1 41.55 28 14.0 2.826 2.922 85 13.9 11.7 233.3 20:47 (133, 8)
Feb. 5 1 37.30 27 29.1 2.877 2.836 77 13.8 8.9 229.4 20:39 (129, 5)
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Image:
1999 June 12
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Appearing at dawn, however, it is 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)
Jan. 29 16 53.46 -30 24.8 6.634 6.096 53 14.0 9.1 100.8 3:37 (287, 31)
Feb. 5 16 58.13 -30 36.5 6.539 6.094 59 14.0 8.4 101.2 3:47 (284, 37)
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Image:
2000 Jan. 1
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It is 12 or 13 mag visually, but it is faint as 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)
Jan. 29 13 52.83 -12 56.9 1.601 1.988 97 14.0 24.2 139.9 3:37 (234, 58)
Feb. 5 13 59.73 -15 5.9 1.542 2.000 102 14.0 22.5 144.7 3:47 (225, 64)
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Image:
1999 Dec. 30
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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 is diffused.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 22 43.33 13 9.6 4.928 4.262 43 14.3 17.2 96.2 20:47 ( 96,-15)
Feb. 5 22 51.57 12 58.7 4.984 4.253 38 14.3 17.4 94.1 20:39 ( 94,-17)
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Image:
2000 Jan. 8
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Fading now. It is 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)
Jan. 29 3 47.42 18 1.5 0.940 1.579 110 14.3 33.3 111.4 20:47 (154, 33)
Feb. 5 4 2.91 16 43.0 0.997 1.589 106 14.5 33.9 107.6 20:39 (152, 34)
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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)
Jan. 29 19 51.50 -42 26.7 4.433 3.580 26 14.8 17.3 116.2 3:37 (318, 7)
Feb. 5 20 1.51 -43 21.4 4.362 3.553 31 14.7 17.8 117.0 3:47 (315, 11)
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Image:
2000 Jan. 1
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It will keep 14 mag until 2000 March. It is 13 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 14 12.14 35 51.4 3.406 3.807 106 14.8 16.7 309.0 3:37 (206, 13)
Feb. 5 14 3.80 37 6.3 3.337 3.833 113 14.8 19.2 304.6 3:47 (196, 16)
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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 out very slowly after the approach to the earth, however, it faded out rapidly in December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 0 30.96 -61 59.2 2.608 2.260 58 15.0 10.4 53.7 20:47 ( 35, 39)
Feb. 5 0 39.74 -61 19.5 2.711 2.345 58 15.3 10.8 61.5 20:39 ( 36, 37)
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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)
Jan. 29 1 13.95 -38 35.2 4.656 4.275 61 15.1 7.8 37.5 20:47 ( 67, 42)
Feb. 5 1 17.14 -37 52.0 4.649 4.205 57 15.1 8.6 44.3 20:39 ( 66, 38)
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Image:
2000 Jan. 1
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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)
Jan. 29 16 36.62 35 0.7 7.245 7.124 79 15.3 3.3 64.5 3:37 (229, -4)
Feb. 5 16 38.09 35 12.4 7.179 7.121 82 15.3 2.9 48.3 3:47 (224, 1)
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Image:
2000 Jan. 8
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Rapidly fading since December. It is 14 mag visually, 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)
Jan. 29 1 56.17 21 54.5 1.346 1.617 86 15.3 39.3 54.0 20:47 (132, 15)
Feb. 5 2 12.59 24 29.7 1.420 1.639 83 15.6 39.1 57.0 20:39 (133, 13)
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Image:
1999 Dec. 27
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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)
Jan. 29 10 17.57 -21 40.6 3.806 4.546 133 15.5 16.0 254.5 1:48 (180, 77)
Feb. 5 10 9.65 -22 5.5 3.817 4.608 139 15.5 16.2 259.8 1:13 (180, 77)
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Image:
2000 Jan. 8
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It will be 13 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)
Jan. 29 22 16.57 24 55.1 4.766 4.182 48 15.6 5.3 49.8 20:47 (103,-26)
Feb. 5 22 18.81 25 22.5 4.782 4.139 44 15.6 6.3 46.1 20:39 (102,-30)
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Image:
1999 Dec. 27
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Appearing at dawn. It was 15.3 mag on Dec. 21 by KenIchi Kadota, Ageo, as bright as the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 13 43.49 -18 4.2 2.875 3.163 97 15.7 17.0 286.5 3:37 (238, 63)
Feb. 5 13 34.75 -17 25.3 2.804 3.233 107 15.7 20.4 287.9 3:47 (216, 69)
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Image:
1999 Dec. 30
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It has got diffused in December and now fading rapidly. It is 14 mag visually, 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)
Jan. 29 20 43.82 58 57.1 2.109 2.120 77 15.7 17.2 19.2 20:47 (142,-49)
Feb. 5 20 49.14 60 59.1 2.147 2.157 77 16.2 19.4 17.0 3:47 (216,-45)
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Image:
2000 Jan. 15
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Actually, it will be brighter than this ephemeris. 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)
Jan. 29 7 0.98 27 30.2 2.829 3.743 154 15.7 8.3 279.5 22:28 (180, 27)
Feb. 5 6 57.00 27 38.4 2.871 3.736 146 15.7 6.9 278.1 21:56 (180, 27)
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Image:
2000 Jan. 3
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Although it has been brightening after perihelion passage, it turned to be fading rapidly after mid January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 4 10.40 38 40.8 1.312 1.977 118 16.0 24.7 128.8 20:47 (166, 15)
Feb. 5 4 22.20 36 56.8 1.392 2.002 113 16.3 25.1 124.4 20:39 (164, 16)
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Image:
1999 Dec. 29
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It keeps 16 mag and the good position until February. It is 14 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)
Jan. 29 8 9.98 22 47.9 1.578 2.555 170 16.1 11.4 258.3 23:36 (180, 32)
Feb. 5 8 4.66 22 30.5 1.617 2.576 162 16.3 10.1 254.7 23:04 (180, 33)
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Image:
1999 Dec. 9
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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)
Jan. 29 10 35.15 31 17.0 3.859 4.748 151 16.2 11.4 334.0 2:06 (180, 24)
Feb. 5 10 32.16 32 27.4 3.861 4.776 155 16.2 11.4 329.4 1:35 (180, 23)
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Image:
2000 Jan. 8
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It will reach to 13 mag in 2000 November. It will be brightening gradually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 2 24.63 64 3.7 4.644 4.979 104 16.3 16.0 196.8 20:47 (162,-15)
Feb. 5 2 20.81 62 18.7 4.689 4.932 98 16.3 14.9 190.9 20:39 (158,-15)
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Image:
2000 Jan. 3
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After the perihelion passage, it has been getting brighter. But now it is fading since January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 4 48.65 19 1.4 1.571 2.280 124 16.3 8.5 49.3 20:47 (171, 35)
Feb. 5 4 52.48 19 39.5 1.673 2.312 118 16.6 10.5 59.3 20:39 (167, 34)
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Image:
1999 June 12
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Appearing at dawn. No observations reported since 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)
Jan. 29 16 54.61 -18 17.1 10.407 9.861 54 16.5 5.4 90.9 3:37 (276, 25)
Feb. 5 16 57.13 -18 17.4 10.320 9.873 60 16.5 4.9 89.7 3:47 (271, 32)
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Image:
1999 May 12
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Appearing at dawn. No observations reported since June 13. It may be much fainter than this ephemeris. The altitude will be around 15 deg 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)
Jan. 29 14 52.58 -36 5.7 3.607 3.528 77 16.8 11.6 130.4 3:37 (284, 57)
Feb. 5 14 57.26 -36 57.0 3.550 3.570 83 16.8 10.2 134.7 3:47 (284, 63)
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Image:
2000 Jan. 15
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It keeps the good condition until March, but it will fade out after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 6 13.42 17 28.9 2.366 3.218 144 16.9 4.2 226.8 21:40 (180, 38)
Feb. 5 6 12.42 17 10.2 2.458 3.251 137 17.1 2.7 202.9 21:12 (180, 38)
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Retrograde asteroid. It will be overhead as 17 mag until March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 13 0.62 16 7.4 1.871 2.499 118 17.1 44.0 303.3 3:37 (196, 37)
Feb. 5 12 40.57 19 4.3 1.770 2.523 130 17.0 52.2 300.3 3:44 (180, 36)
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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)
Jan. 29 3 6.54 -18 39.2 5.569 5.648 89 17.0 9.9 0.4 20:47 (110, 56)
Feb. 5 3 6.86 -17 30.5 5.720 5.703 84 17.1 9.8 7.4 20:39 (108, 52)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 1 44.77 21 44.4 6.908 6.873 83 17.1 3.3 39.9 20:47 (130, 14)
Feb. 5 1 46.06 22 3.2 6.987 6.838 77 17.1 4.2 46.5 20:39 (127, 11)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 7 20.73 49 13.7 1.586 2.458 144 17.1 13.0 224.2 22:47 (180, 6)
Feb. 5 7 15.18 48 3.5 1.654 2.492 140 17.3 12.5 211.8 22:14 (180, 7)
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It will pass the perihelion in 2002 February and it will brighten gradually after this. But the altitude is highest now and keeps low after this for the Northern people.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 13 16.34 -24 13.6 7.519 7.769 101 17.3 5.6 216.2 3:37 (239, 72)
Feb. 5 13 14.37 -24 44.4 7.375 7.738 108 17.2 6.1 225.5 3:47 (214, 78)
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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)
Jan. 29 17 8.82 14 44.6 6.603 6.205 62 17.3 11.3 56.0 3:37 (250, 3)
Feb. 5 17 13.16 15 30.5 6.560 6.239 66 17.3 11.0 51.6 3:47 (244, 9)
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Image:
1999 Nov. 19
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No observations reported since mid December. Only few observations reported even before that.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 10 6.32 0 9.6 1.988 2.899 152 17.4 12.5 291.4 1:37 (180, 55)
Feb. 5 10 0.66 0 45.1 1.993 2.941 160 17.6 13.7 293.9 1:04 (180, 54)
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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)
Jan. 29 9 52.43 1 11.7 2.102 3.028 155 17.4 9.8 251.4 1:23 (180, 54)
Feb. 5 9 47.88 0 53.1 2.086 3.040 162 17.4 10.4 257.7 0:51 (180, 54)
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Image:
1999 Nov. 13
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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)
Jan. 29 3 11.79 14 50.0 5.618 5.889 101 17.4 6.2 316.4 20:47 (143, 32)
Feb. 5 3 10.06 15 21.9 5.779 5.927 93 17.5 5.4 327.9 20:39 (138, 28)
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Image:
1999 Dec. 23
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It was extremely diffused in December. No CCD observations reported in January. But 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)
Jan. 29 0 36.03 -7 12.3 2.365 2.017 57 17.5 34.1 62.9 20:47 ( 95, 20)
Feb. 5 0 50.17 -5 25.0 2.467 2.058 54 17.9 33.5 63.2 20:39 ( 96, 18)
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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)
Jan. 29 9 51.40 -0 7.3 12.459 13.360 155 17.5 3.3 274.8 1:22 (180, 55)
Feb. 5 9 49.83 -0 4.8 12.420 13.357 161 17.5 3.4 277.5 0:53 (180, 55)
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Image:
1999 Nov. 13
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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)
Jan. 29 2 7.30 4 59.4 5.630 5.598 83 17.7 4.6 168.8 20:47 (121, 30)
Feb. 5 2 7.99 4 29.9 5.738 5.583 76 17.8 4.4 152.7 20:39 (117, 27)
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Only 8 observations reported during one month in 1984. The orbit and brightness are extremely uncertain. The ephemeris says it is highest and brightest until April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 9 19.51 8 0.3 2.246 3.212 166 17.8 10.1 280.8 0:50 (180, 47)
Feb. 5 9 14.67 8 15.6 2.211 3.191 172 17.8 10.8 283.1 0:18 (180, 47)
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Both the brightness and altitude are at best now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 14 16.92 68 45.2 3.395 3.834 109 17.8 28.2 341.6 3:37 (192,-16)
Feb. 5 14 1.89 71 50.7 3.383 3.845 110 17.8 29.0 334.4 3:47 (186,-18)
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The best condition of this comet is until March, at 45 deg high as 18 mag for the Northern people.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 7 53.50 -14 41.3 3.320 4.165 144 17.8 9.5 305.5 23:20 (180, 70)
Feb. 5 7 49.93 -13 58.9 3.342 4.177 143 17.8 9.6 313.1 22:49 (180, 69)
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