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It will brighten rapidly in the morning low sky until mid August. It is not observable after perihelion passage. It was 10.5-11.0 mag visually around Aug. 1, 1 mag 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)
Aug. 12 7 15.32 28 54.4 1.360 0.762 33 11.1 99.4 100.4 3:44 (245, 15)
Aug. 19 8 9.18 25 53.3 1.315 0.635 27 9.8 111.9 107.0 3:51 (245, 10)
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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)
Aug. 12 6 48.66 -39 27.8 2.377 2.170 65 10.7 41.4 102.3 3:44 (306,-18)
Aug. 19 7 13.70 -40 26.2 2.309 2.091 64 10.5 42.5 101.1 3:51 (308,-17)
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Near-earth asteroid at the peak now. Only observable in the Southern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 9 12.40 -44 42.0 0.052 0.988 59 13.8 593.2 199.8 3:44 (298,-45)
Aug. 19 23 44.07 -57 49.4 0.066 1.056 130 11.6 375.1 332.1 2:01 ( 0, -5)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 19 13.93 -22 10.2 0.843 1.783 147 13.0 17.1 293.0 21:48 ( 0, 33)
Aug. 19 19 7.34 -21 23.7 0.888 1.782 139 13.2 12.3 302.1 21:14 ( 0, 34)
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It will be 13-14 mag from August to November. But the altitude keeps lower than 20 deg until late August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 20 12.27 -37 15.9 1.585 2.525 152 13.3 10.3 289.3 22:46 ( 0, 18)
Aug. 19 20 7.10 -36 46.9 1.602 2.506 146 13.2 9.3 301.4 22:13 ( 0, 18)
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Image:
1998 Dec. 5
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It is extremely low in the Northern Hemisphere. The altitude will be higher than 10 deg after September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 21 18.56 -47 40.8 3.277 4.165 147 13.3 18.7 294.8 23:52 ( 0, 7)
Aug. 19 21 7.30 -46 40.6 3.334 4.200 144 13.4 18.3 300.3 23:13 ( 0, 8)
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Image:
2000 Jan. 8
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It will be observable in good condition at the same magnitude until October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 18 25.14 61 19.7 2.945 3.206 95 13.4 34.0 241.7 20:58 (180, 64)
Aug. 19 17 58.76 59 10.0 2.951 3.185 93 13.4 33.2 232.2 20:14 (177, 66)
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Image:
1999 June 12
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The altitude will be 24 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)
Aug. 12 16 37.15 -30 9.6 5.579 6.035 112 13.6 1.7 18.7 20:25 ( 17, 23)
Aug. 19 16 37.74 -29 58.8 5.681 6.033 105 13.6 2.2 48.5 20:14 ( 21, 22)
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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. Recently it is brighter than this ephemeris, around 13.0 mag
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 7 45.54 -71 45.2 3.144 3.276 88 13.6 14.6 67.5 3:44 (338,-36)
Aug. 19 8 4.02 -71 9.2 3.197 3.284 85 13.7 12.6 69.0 3:51 (337,-35)
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Image:
2000 Aug. 4
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The nucleus has broken and the comet vanished. No observations reported since Aug. 3 when it was 10 mag. The current brightness is quite uncertain. Only observable in the Southern Hemisphere.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 12 33.56 -5 40.2 0.936 0.833 50 13.7 57.5 163.6 20:25 ( 79, 5)
Aug. 19 12 38.97 -10 39.3 1.188 0.894 47 14.6 34.1 166.4 20:14 ( 76, 0)
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Image:
1999 Dec. 30
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Because it is far away, it keeps 14 mag until late 2000. Very diffused. It is around 13.0 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 1 52.26 9 31.6 3.845 4.300 110 13.8 8.7 156.4 3:44 (335, 62)
Aug. 19 1 53.56 8 32.6 3.760 4.313 116 13.7 9.1 167.1 3:51 (353, 63)
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Image:
1997 Apr. 5
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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)
Aug. 12 6 32.19 -71 41.8 11.617 11.687 91 14.0 5.4 139.4 3:44 (339,-30)
Aug. 19 6 37.21 -72 11.6 11.675 11.734 90 14.0 5.4 144.5 3:51 (340,-28)
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Image:
2000 Feb. 5
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It is around 13.5 mag visually. It will be observable as 13.5 mag under good condition from October to January.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 3 27.00 49 54.4 3.831 3.767 78 14.2 5.2 286.3 3:44 (229, 60)
Aug. 19 3 22.60 50 3.4 3.675 3.730 85 14.0 7.3 278.6 3:51 (223, 66)
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Approaching to the earth. It will reach to 14.2 mag in late September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 20 53.28 -17 45.2 0.428 1.438 171 14.7 25.1 251.5 23:26 ( 0, 37)
Aug. 19 20 40.51 -18 44.1 0.379 1.376 161 14.7 29.3 252.4 22:46 ( 0, 36)
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Approaching to the earth. It will reach to 13.5 mag in September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 0 28.85 32 4.2 0.261 1.152 116 15.4 45.1 228.6 3:07 ( 0, 87)
Aug. 19 0 7.07 27 40.3 0.232 1.170 128 14.9 66.5 225.8 2:18 ( 0, 83)
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Unusual asteroid. It reaches to 14.2 mag in November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 3 41.48 -8 18.4 1.787 2.037 88 15.3 26.2 99.5 3:44 (312, 33)
Aug. 19 3 53.30 -8 51.9 1.728 2.036 92 15.2 24.7 102.3 3:51 (318, 36)
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New near-earth asteroid. It will be at the peak of 15 mag in mid August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 22 37.92 0 47.8 0.235 1.232 156 15.3 46.9 32.0 1:15 ( 0, 56)
Aug. 19 22 48.77 5 14.0 0.235 1.232 157 15.3 41.9 30.9 0:59 ( 0, 60)
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New near-earth asteroid. It will be 15.2 mag until mid September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 22 53.70 -20 53.2 0.224 1.225 158 15.4 47.2 99.0 1:30 ( 0, 34)
Aug. 19 23 17.50 -21 36.6 0.211 1.210 158 15.3 48.3 95.9 1:27 ( 0, 33)
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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)
Aug. 12 15 12.01 26 43.4 7.266 7.158 79 15.4 9.9 183.7 20:25 ( 87, 55)
Aug. 19 15 11.91 25 34.5 7.356 7.163 75 15.4 9.8 178.4 20:14 ( 88, 51)
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It will be observable as 16 mag until late October. It is 14.5-15.0 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 17 14.94 10 49.2 1.958 2.522 112 15.5 11.7 135.3 20:25 ( 20, 64)
Aug. 19 17 19.43 9 48.7 1.995 2.503 108 15.5 14.0 130.0 20:14 ( 26, 63)
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It reached to 13 mag at return in 1987, however, it was not observed at return in 1994. The ephemeris says it will reach to 13.7 mag in November, but it may be much fainter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 1 33.81 17 56.9 1.907 2.460 111 15.8 11.5 55.0 3:44 (339, 72)
Aug. 19 1 37.99 18 40.8 1.797 2.424 116 15.6 9.6 51.8 3:48 ( 0, 74)
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Unrecovered periodic comet in first return. It will locate overhead as 15.4 mag in October. However, it must be much fainter because not yet recovered.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 4 1.90 21 22.2 1.957 1.989 76 15.9 29.8 67.8 3:44 (278, 49)
Aug. 19 4 15.56 22 39.2 1.891 1.989 80 15.9 28.8 67.9 3:51 (280, 54)
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Image:
1999 Nov. 28
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It will be observable in good condition as 15 mag from autumn to winter.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 3 31.44 41 0.1 6.065 5.966 79 16.2 9.1 24.4 3:44 (247, 61)
Aug. 19 3 33.50 41 58.4 5.934 5.937 85 16.1 8.8 18.7 3:51 (244, 67)
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It will be observable as 17 mag even in 2001 spring because it is very far. It is 14.5 mag visually.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 15 47.98 13 45.6 6.390 6.490 91 16.2 3.2 267.4 20:25 ( 60, 55)
Aug. 19 15 46.72 13 43.6 6.508 6.503 85 16.2 2.1 259.1 20:14 ( 65, 52)
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In the Northern Hemisphere, it keeps 16 mag and 25 deg high until late August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 16 11.07 -25 7.1 1.962 2.442 105 16.3 8.5 75.7 20:25 ( 25, 26)
Aug. 19 16 15.98 -24 54.2 2.015 2.410 100 16.3 10.9 81.7 20:14 ( 28, 25)
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It will reach to 14 mag and locate overhead in December.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 3 33.77 30 41.6 2.772 2.803 81 16.6 17.0 68.8 3:44 (267, 59)
Aug. 19 3 42.14 31 23.2 2.668 2.785 85 16.5 15.9 68.6 3:51 (270, 65)
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Image:
1999 June 12
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It keeps over 30 deg high until end of August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 16 40.98 -16 50.9 9.787 10.200 111 16.5 0.3 197.8 20:25 ( 20, 36)
Aug. 19 16 41.09 -16 53.5 9.909 10.212 104 16.5 0.7 127.6 20:14 ( 25, 34)
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It was 15.8 mag on July 29 by KenIchi Kadota, Ageo, Japan.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 0 41.39 -12 25.7 1.687 2.492 133 16.5 8.6 223.3 3:19 ( 0, 43)
Aug. 19 0 37.91 -13 10.9 1.671 2.532 140 16.7 10.9 232.5 2:48 ( 0, 42)
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It is observable around 17.0 mag until September when it becomes low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 15 51.57 3 58.4 5.361 5.536 94 16.9 8.9 247.0 20:25 ( 48, 49)
Aug. 19 15 48.10 3 33.3 5.489 5.542 87 16.9 7.6 241.3 20:14 ( 54, 45)
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It has been already observed at this return, but no observations reported recently. It will be 17 mag at good position until November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 2 48.55 34 43.5 2.044 2.272 89 16.9 20.7 43.7 3:44 (264, 69)
Aug. 19 2 56.25 36 26.9 1.986 2.287 93 16.9 19.2 40.5 3:51 (259, 75)
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It was very faint as 19.2 mag on Aug. 4 by Akimasa Nakamura, Kuma, Japan.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 22 41.82 25 26.5 1.687 2.515 135 17.1 5.4 234.7 1:20 ( 0, 80)
Aug. 19 22 39.21 24 55.3 1.635 2.502 140 17.0 8.1 224.3 0:50 ( 0, 80)
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Unrecovered periodic comet in return. It was missed in the last return. Appearing at dawn, however, already fading now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 5 47.73 22 54.7 1.836 1.459 52 17.3 41.0 71.7 3:44 (261, 29)
Aug. 19 6 7.23 24 19.5 1.832 1.496 54 17.4 39.2 72.8 3:51 (261, 32)
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Image:
1999 Nov. 13
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It will be at peak of 17 mag in September and October, but the altitude is lower than 40 deg.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 3 32.77 -10 29.3 5.243 5.367 91 17.4 12.2 172.3 3:44 (316, 33)
Aug. 19 3 33.26 -11 56.9 5.137 5.366 97 17.4 12.9 178.2 3:51 (325, 36)
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Image:
1999 May 31
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Fading gradually. It keeps 17-18 mag at good position until October. No observations reported since 1999 August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 19 32.14 40 9.7 5.814 6.362 118 17.4 9.2 269.3 22:06 (180, 85)
Aug. 19 19 26.75 40 5.3 5.865 6.389 117 17.4 8.5 262.7 21:33 (180, 85)
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New comet. It keeps 17.5 mag until late October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Aug. 12 0 44.62 40 53.6 5.694 6.084 107 17.6 11.7 277.1 3:22 (180, 84)
Aug. 19 0 37.05 41 0.3 5.607 6.095 114 17.6 12.9 272.0 2:47 (180, 84)
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