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Image:
1999 Jan. 22
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We can see it in good condition until June. Southern observers cannot see it. It closes down to 7 arcmin to a dwarf nova 1998di, misunderstood as a supernova at the discovery, on Feb. 9 at 18h(UT), but 1998di should be fainter than 19 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 19 20.71 57 12.1 1.686 1.750 76 9.6 39.4 9.2 3:49 (220,-33)
Feb. 13 19 26.37 62 3.9 1.632 1.760 80 9.5 44.9 7.4 3:58 (213,-30)
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Image:
1999 Jan. 21
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Bright and large visually. It keeps the good condition until April but the it begins to fade out after March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 10 26.78 29 9.7 1.075 2.027 159 10.2 94.3 305.9 1:27 (180, 26)
Feb. 13 9 45.66 34 41.1 1.155 2.106 158 10.5 81.6 299.3 0:18 (180, 21)
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Image:
1999 Jan. 21
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Although it had been rapidly brightening since discovery, the outburst stopped in mid December. We can see it as around 10-11 mag in good condition until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 6 18.41 29 45.0 1.327 2.155 136 10.6 14.4 179.4 21:13 (180, 25)
Feb. 13 6 19.38 28 5.6 1.372 2.147 130 10.6 14.4 165.9 20:47 (180, 27)
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Image:
1999 Jan. 22
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Now at peak. It keeps the good condition until March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 7 3.79 35 7.1 0.859 1.758 144 10.7 13.6 174.0 21:58 (180, 20)
Feb. 13 7 5.60 33 30.6 0.895 1.763 138 10.9 14.8 160.2 21:33 (180, 22)
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Because the nuclear magnitude brightened 3 mag in mid December, visual observers recently reported it as bright as 9.6-11.3 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 4 57.46 -71 32.4 7.688 7.624 82 11.3 7.1 325.4 20:37 ( 6, 53)
Feb. 13 4 52.40 -70 50.2 7.745 7.681 82 11.3 6.9 334.3 20:28 ( 9, 53)
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Image:
1999 Jan. 16
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A new comet, but northern people can never see it again. Southern observers can keep observing it while fading out.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 23 30.36 -46 8.3 1.112 0.746 41 11.3 23.0 213.1 20:37 ( 48, 23)
Feb. 13 23 21.18 -47 58.1 1.226 0.786 39 11.7 18.7 227.7 20:28 ( 44, 19)
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Image:
1999 Jan. 16
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It was a bit fainter than the ephemeris. It is probably about 12 mag already. It keeps the same apparent location until April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 2 35.81 -17 56.1 1.352 1.463 75 11.6 49.5 73.4 20:37 (100, 46)
Feb. 13 2 58.30 -16 15.2 1.439 1.525 75 11.9 47.1 72.2 20:28 (103, 45)
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Image:
1999 Jan. 16
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Very low in the morning sky. It will be higher gradually. Souther observers cannot see it until late March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 21 6.94 13 44.4 2.191 1.421 29 11.9 2.1 193.8 3:49 (278,-35)
Feb. 13 21 6.67 13 34.3 2.262 1.474 28 12.2 1.1 217.7 3:58 (273,-28)
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Image:
1998 Dec. 13
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Hard to observe it because it is very low. It will appear again in September as 13 mag after conjunction.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 22 55.56 -4 16.9 2.702 1.876 26 12.8 36.6 72.4 20:37 ( 80, -7)
Feb. 13 23 12.07 -2 57.0 2.703 1.846 24 12.6 37.6 71.9 20:28 ( 81, -8)
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Image:
1999 Jan. 16
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Although reported as bright as 13.5-14.0 mag visually, it is so faint as around 16 mag by CCD. It will reach to 7 mag next year but the condition is bad for Northern people.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 23 17.41 -0 31.3 3.141 2.381 33 13.3 3.2 149.1 20:37 ( 86, -5)
Feb. 13 23 18.39 -0 48.3 3.154 2.313 26 13.1 3.4 130.4 20:28 ( 83, -8)
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Image:
1999 Jan. 10
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It was still bright as around 12.0 mag in January, but very faint as 15 mag by CCD.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 23 35.54 -5 15.2 2.654 1.940 35 13.2 36.9 65.0 20:37 ( 85, 2)
Feb. 13 23 50.96 -3 27.4 2.741 1.984 32 13.5 35.9 64.9 20:28 ( 86, 0)
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Image:
1998 Dec. 13
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Not observable. We have another chance in July, but only 15 deg altitude as 15 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 22 6.19 -20 9.9 5.347 4.390 12 13.8 12.6 98.2 20:37 ( 60, -7)
Feb. 13 22 12.37 -20 22.3 5.406 4.435 9 13.8 12.5 98.1 20:28 ( 58, -9)
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Image:
1998 Dec. 5
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It locates high in the Southern Hemisphere. It keeps locating at altitude 6 deg until April it in the Northern Hemisphere. It is rather bright as 13.0 mag visually now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 9 19.22 -47 25.9 3.819 4.353 116 13.9 17.1 241.2 0:18 ( 0, 78)
Feb. 13 9 8.56 -48 16.5 3.768 4.315 117 13.8 16.7 248.1 23:34 ( 0, 77)
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Image:
1999 Jan. 27
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It is so faint as 17 mag now. Although it keeps lower than 27 deg for Northern people in 1999.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 15 17.18 -27 49.8 6.239 6.190 82 13.9 5.3 120.9 3:49 (267, 58)
Feb. 13 15 19.30 -28 8.0 6.125 6.189 89 13.9 4.3 125.1 3:58 (261, 66)
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Image:
1999 Jan. 21
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Although visual observers reported as bright as 13 mag still now, CCD observers reported it is fading and 0.5 mag fainter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 6 11.85 38 35.1 1.239 2.048 133 14.6 13.6 154.1 21:07 (180, 17)
Feb. 13 6 16.14 37 11.2 1.327 2.086 128 14.8 14.5 143.8 20:44 (180, 18)
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Not yet observed in this return. The ephemeris says it will be bright as 15 mag, so CCD observers may catch it soon. Now is the chance to observe it for the first time. But there are so many stars around and the observation is very hard. It will be at the peak in June and reach to 13 mag, but the altitude keeps only about 15 deg for the Northern people until June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 17 11.00 -28 51.2 2.021 1.711 57 14.8 43.1 97.4 3:49 (283, 36)
Feb. 13 17 34.19 -29 23.0 1.940 1.674 59 14.6 44.2 94.9 3:58 (282, 39)
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Not yet observed in this return. Although it is not observable now, we can observe it for a while as 15-16 mag after appearing again at dawn as 15 mag in next summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 22 21.26 -9 35.3 2.929 2.006 16 14.9 35.3 56.5 20:37 ( 70,-11)
Feb. 13 22 35.19 -7 17.4 2.942 1.998 13 14.9 35.6 56.1 20:28 ( 72,-13)
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Image:
1999 Jan. 10
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Bright as around 14.0 mag visually, around 15.0 mag by CCD. The brightness is at peak now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 4 20.82 19 37.8 1.130 1.735 109 14.9 28.6 38.7 20:37 (157, 32)
Feb. 13 4 30.51 22 7.3 1.196 1.743 105 15.0 29.1 45.5 20:28 (156, 29)
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Only observable in the Southern Hemisphere. No observations reported recently. It was faint as 14-16 mag between August and October.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 0 23.45 -54 23.9 3.394 2.904 52 15.3 30.3 47.4 20:37 ( 44, 34)
Feb. 13 0 40.56 -51 60.0 3.453 2.949 52 15.4 29.8 46.9 20:28 ( 46, 33)
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Image:
1998 Dec. 24
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Brightened rapidly. But the outburst seemed to have stopped at 17.0 mag. So it is actually about 1 mag fainter than the ephemeris. It keeps the same brightness for a while after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 6 17.35 21 38.3 0.938 1.792 137 15.6 7.1 151.0 21:12 (180, 33)
Feb. 13 6 20.09 20 56.7 0.974 1.783 130 15.5 9.5 127.3 20:48 (180, 34)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 6 38.48 27 53.7 1.345 2.204 141 16.0 4.3 235.0 21:33 (180, 27)
Feb. 13 6 37.47 27 34.9 1.366 2.174 134 15.9 2.9 184.6 21:05 (180, 27)
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Image:
1999 Jan. 10
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The current brightness and condition will keep until early April. Visual observers reported it much brighter, 13.5-14.0 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 3 3.69 5 51.9 2.382 2.553 88 16.0 21.2 43.1 20:37 (130, 35)
Feb. 13 3 10.89 7 38.6 2.476 2.563 83 16.1 22.0 47.0 20:28 (128, 31)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 1 41.95 19 18.0 2.727 2.632 74 16.0 21.1 69.9 20:37 (124, 11)
Feb. 13 1 51.99 20 9.3 2.823 2.645 69 16.1 22.0 70.3 20:28 (123, 9)
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Image:
1998 Dec. 12
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14.5 mag visually and 15 mag by CCD. Although it is very low now, it will be higher gradually and we can trace it while fading gradually after this.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 21 3.32 33 46.0 3.822 3.271 49 16.1 26.0 63.5 3:49 (254,-44)
Feb. 13 21 16.42 35 8.3 3.870 3.310 49 16.1 25.9 62.4 3:58 (250,-39)
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It is getting brighter now, so CCD observers will catch it soon. It should be fainter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 15 56.33 -8 14.9 2.445 2.444 78 16.3 22.4 93.9 3:49 (249, 40)
Feb. 13 16 6.77 -8 23.0 2.320 2.403 82 16.1 21.9 92.1 3:58 (243, 45)
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Image:
1999 Jan. 22
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17.0 mag on Jan. 22. Although it was 0.5 mag fainter than the ephemeris in 1997 and 1998, it is now 1 mag fainter than the ephemeris. It closes to 105P/Singer Brewster (18.9 mag) down to 24 arcmin at 21h(UT) on Feb. 5.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 16 4.69 -17 36.8 9.524 9.303 74 16.2 4.0 93.0 3:49 (261, 44)
Feb. 13 16 6.49 -17 37.7 9.419 9.313 80 16.1 3.4 90.9 3:58 (254, 51)
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No observations reported since last May. It appears at dawn.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 17 25.41 -20 42.3 3.097 2.655 54 17.4 24.5 90.4 3:49 (276, 29)
Feb. 13 17 37.40 -20 41.1 3.037 2.670 59 17.4 23.6 88.9 3:58 (273, 34)
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Mother asteroid of Geminids. CCD observers will be able to catch it because it is stellar in a good position.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 1 50.07 20 51.4 1.905 1.928 76 17.4 10.5 112.7 20:37 (126, 12)
Feb. 13 1 55.47 20 27.7 1.960 1.875 70 17.4 12.2 102.9 20:28 (124, 10)
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Image:
1999 Jan. 22
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Appearing at dawn now, but it is very faint now. It will keep the brightness for a long time after this, but it keeps very low 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)
Feb. 6 14 51.48 -27 29.7 3.599 3.702 88 17.5 12.9 151.6 3:49 (262, 63)
Feb. 13 14 54.31 -28 48.8 3.522 3.726 94 17.4 12.1 158.1 3:58 (257, 71)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 2 54.42 10 54.3 2.981 3.101 87 17.5 13.0 71.6 20:37 (131, 29)
Feb. 13 3 0.49 11 23.4 3.161 3.180 82 17.7 13.8 72.3 20:28 (129, 27)
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Image:
1999 Jan. 22
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A Centaur asteroid. CCD observers will be able to catch it because it is stellar in a good position.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 9 23.83 5 22.0 12.546 13.516 169 17.6 3.5 278.8 0:22 (180, 50)
Feb. 13 9 22.19 5 26.1 12.539 13.513 170 17.6 3.5 280.3 23:49 (180, 50)
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It will be lower than 40 deg in March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 3 42.66 -11 53.5 3.665 3.842 92 17.7 8.9 41.1 20:37 (123, 54)
Feb. 13 3 45.80 -11 5.9 3.753 3.842 87 17.7 10.1 46.9 20:28 (120, 51)
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Image:
1998 Dec. 19
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It is around the aphelion now. The recent magnitude is 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)
Feb. 6 3 15.43 16 29.7 3.982 4.170 94 17.7 5.6 62.8 20:37 (140, 28)
Feb. 13 3 18.21 16 48.7 4.082 4.161 87 17.7 7.0 65.9 20:28 (136, 25)
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No observations reported recently. Maybe much fainter than the ephemeris.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 11 49.01 -5 8.7 2.384 3.176 136 17.9 3.3 285.8 2:47 (180, 60)
Feb. 13 11 47.05 -4 58.6 2.303 3.159 144 17.8 5.5 291.2 2:17 (180, 60)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 2 58.66 15 9.5 4.415 4.522 89 17.9 5.4 59.4 20:37 (135, 27)
Feb. 13 3 1.23 15 29.8 4.536 4.531 83 18.0 6.7 62.9 20:28 (132, 24)
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Not yet observed since it appeared at dawn. We can observe it in good condition after March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 16 45.75 13 28.6 6.165 5.954 73 18.2 10.4 16.0 3:49 (240, 16)
Feb. 13 16 46.89 14 41.0 6.078 5.967 78 18.2 10.8 9.9 3:58 (232, 22)
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A Centaur asteroid. CCD observers will be able to catch it because it is stellar.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 14 25.20 12 20.2 13.555 13.852 105 18.4 1.8 15.7 3:49 (209, 38)
Feb. 13 14 25.32 12 32.8 13.472 13.871 111 18.4 1.9 359.7 3:58 (198, 41)
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Image:
1999 Jan. 10
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It has faded out much faster than expected, already so faint.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 6 52.70 40 31.8 1.125 1.985 140 18.7 14.0 14.8 21:47 (180, 14)
Feb. 13 6 55.76 41 53.7 1.214 2.027 133 19.1 11.8 32.1 21:23 (180, 13)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 9 37.41 15 39.9 1.528 2.511 175 18.9 13.4 286.7 0:36 (180, 39)
Feb. 13 9 31.26 16 5.8 1.556 2.542 175 19.0 12.9 285.9 0:02 (180, 39)
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Extremely faint, but it is stellar.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Feb. 6 14 44.15 5 29.9 2.155 2.512 99 19.2 10.6 54.0 3:49 (219, 42)
Feb. 13 14 47.52 6 17.0 2.116 2.560 105 19.2 9.2 38.7 3:58 (208, 45)
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