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Image:
1999 May 6
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New comet. In the Northern Hemisphere, it will be in the evening sky as 7 mag until mid June. Then it will appear at dawn as 7 mag in late July. After that, it will fade while being higher.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 10 19.78 -52 9.8 0.733 1.501 118 8.1 149.9 325.1 20:18 ( 6, 3)
May 8 9 31.34 -36 30.3 0.725 1.400 106 7.8 150.9 335.9 20:26 ( 25, 14)
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Image:
1999 Apr. 29
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It was as faint as 14.2 mag on Apr. 29, about 3 mag fainter than the ephemeris by CCD. The current visual magnitude is uncertain.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 23 36.54 -3 27.7 2.176 1.661 46 10.9 5.4 173.2 3:37 (278, 5)
May 8 23 36.44 -4 11.6 1.988 1.618 54 10.6 7.4 189.4 3:27 (281, 8)
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Image:
1999 May 1
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We can see it in good condition until June. It is very low in the Southern Hemisphere. It was observed as a bit fainter than the ephemeris in April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 8 32.53 48 18.4 2.079 2.133 79 10.9 40.8 166.4 20:18 (127, 61)
May 8 8 39.21 43 55.0 2.215 2.184 75 11.1 37.1 163.8 20:26 (118, 56)
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Image:
1998 Dec. 13
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Not observable. It will appear again in September as 13 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 2 36.06 13 3.3 2.664 1.658 2 11.4 43.5 76.0 20:18 (122,-18)
May 8 2 56.39 14 13.1 2.664 1.657 2 11.4 43.5 77.3 3:27 (235,-20)
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Only southern people can observe it. Norhtern 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)
May 1 5 12.40 -63 51.8 8.331 8.297 84 11.8 6.1 58.8 20:18 ( 30,-29)
May 8 5 18.06 -63 31.7 8.381 8.352 84 11.8 6.1 65.2 20:26 ( 32,-32)
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Image:
1999 May 1
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In the Northern Hemisphere, the altitude will be only about 15 deg until June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 21 59.61 -18 44.3 1.335 1.446 74 13.1 46.4 66.9 3:37 (305, 14)
May 8 22 20.09 -16 33.5 1.304 1.447 76 13.0 45.1 65.2 3:27 (303, 15)
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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)
May 1 7 51.69 -46 0.1 3.740 3.941 93 13.3 4.0 354.1 20:18 ( 30, -1)
May 8 7 51.99 -45 34.3 3.761 3.911 90 13.3 3.6 21.2 20:26 ( 35, -4)
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Image:
1999 Apr. 16
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It was very diffused after outburst in mid April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 15 7.11 -29 2.3 5.198 6.171 163 13.5 6.5 282.8 0:34 ( 0, 26)
May 8 15 3.68 -28 50.9 5.178 6.169 167 13.5 6.7 285.5 0:03 ( 0, 26)
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Image:
1999 May 1
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It was about 11-13 mag in April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 7 51.50 13 53.1 2.182 2.190 77 14.1 27.0 111.8 20:18 ( 74, 44)
May 8 8 3.65 12 42.2 2.268 2.205 73 14.2 27.6 111.7 20:26 ( 77, 39)
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Image:
1999 Jan. 16
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Only southern people can observe it. It will appear at dawn as 16 mag in mid June for Norhtern observers.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 20 47.83 -57 50.4 1.299 1.781 100 14.3 38.6 255.9 3:37 (340, -9)
May 8 20 11.33 -58 38.9 1.271 1.879 110 14.5 44.8 264.0 3:27 (347, -6)
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Image:
1998 Dec. 13
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Only southern people can observe it. It will appear again in late May as 14 mag 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)
May 1 23 12.29 -24 23.9 5.331 4.946 62 14.3 9.9 126.0 3:37 (298, -3)
May 8 23 16.20 -25 7.1 5.275 4.993 68 14.3 9.7 132.2 3:27 (301, -1)
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Image:
1999 May 1
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New comet. Well condensed and easy to take the image.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 19 5.47 47 22.4 3.449 3.641 92 14.6 27.3 323.7 3:37 (216, 74)
May 8 18 52.83 49 53.6 3.384 3.624 95 14.5 28.7 317.4 3:27 (195, 74)
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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 June. But it should be muyh 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)
May 1 1 9.92 19 1.5 2.933 2.015 19 14.9 35.6 56.0 3:37 (246, -1)
May 8 1 24.61 21 19.4 2.922 2.027 22 14.9 35.4 56.5 3:27 (245, 1)
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Image:
1999 Feb. 6
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Not observable. Although it appears again in July, it will be fainter than 18 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 2 18.26 12 32.4 3.480 2.476 3 15.4 26.8 69.4 3:37 (240,-17)
May 8 2 30.15 13 36.1 3.517 2.520 7 15.6 26.1 70.2 3:27 (241,-16)
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Image:
1999 Apr. 14
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It is getting brighter. It was 16 mag in late April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 17 29.51 -5 12.2 1.098 1.947 135 15.8 6.7 54.6 2:56 ( 0, 50)
May 8 17 31.38 -4 46.9 1.017 1.907 140 15.4 4.1 37.1 2:30 ( 0, 50)
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Image:
1999 Apr. 30
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It is very diffused and hard to observe.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 20 18.15 16 50.1 2.022 2.239 88 15.7 26.0 275.8 3:37 (294, 56)
May 8 20 4.34 17 3.9 1.959 2.315 97 15.8 30.8 272.4 3:27 (304, 62)
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Image:
1999 Apr. 14
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It was about 16.5 mag in March and April, a bit 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)
May 1 16 3.92 -16 45.2 8.487 9.426 157 16.0 3.9 287.5 1:31 ( 0, 38)
May 8 16 2.03 -16 36.9 8.460 9.437 164 15.9 4.2 286.5 1:01 ( 0, 38)
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Image:
1999 Apr. 8
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It is very diffused and hard to observe.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 7 14.70 40 55.7 3.238 2.974 65 16.0 3.1 119.1 20:18 (115, 47)
May 8 7 16.82 40 45.8 3.428 3.051 60 16.2 4.3 107.7 20:26 (117, 41)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 8 9.85 21 2.3 1.888 1.977 79 16.2 29.4 106.4 20:18 ( 80, 52)
May 8 8 24.18 20 1.1 1.946 1.973 76 16.3 30.7 107.3 20:26 ( 82, 47)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 8 51.28 16 42.8 1.676 1.962 90 16.4 28.9 115.4 20:18 ( 64, 57)
May 8 9 4.01 15 15.7 1.770 1.991 86 16.7 29.2 115.2 20:26 ( 68, 52)
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Appearing at dawn. Last observation is on Sept. 16, 1998. It keeps 16 mag until August, locating in good position. We failed to observe it on Mar. 22, it should be fainter than 16.8 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 21 53.08 4 59.1 3.822 3.586 68 16.5 16.1 50.4 3:37 (287, 31)
May 8 21 58.60 6 10.4 3.769 3.619 73 16.5 15.0 47.8 3:27 (288, 34)
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First return. Bright and now is the chance to recover. It is already observable in the Southern Hemisphere. Even in the Northern Hemisphere, the comet will be higher after this. It will be brightening slowly and reach to 15 mag in September.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 23 33.61 0 47.3 3.127 2.534 46 16.5 27.3 71.6 3:37 (275, 8)
May 8 23 45.62 1 46.7 3.058 2.525 49 16.5 26.9 71.8 3:27 (275, 10)
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Image:
1999 Mar. 12
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No observations reported since it appeared at dawn, except for Ageo Survey team's one on Mar. 12 (16.4 mag).
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 23 35.64 51 11.0 4.345 3.784 50 17.0 19.9 52.5 3:37 (227, 32)
May 8 23 47.30 52 34.8 4.377 3.831 51 17.0 19.1 51.5 3:27 (226, 33)
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Image:
1999 Mar. 22
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Although it will be at conjunction soon, it will appear at dawn again as 17.5 mag after August.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 6 12.30 45 38.7 5.673 5.167 55 17.4 2.2 57.7 20:18 (124, 37)
May 8 6 13.81 45 47.6 5.779 5.184 49 17.5 3.0 62.7 20:26 (127, 31)
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No observations reported since last May, although 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)
May 1 19 0.89 -17 47.2 2.311 2.892 115 17.6 5.1 60.7 3:37 (345, 36)
May 8 19 2.48 -17 30.7 2.255 2.917 121 17.6 3.0 42.7 3:27 (350, 37)
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Not yet been observed in this return, although the perihelion passage in on Apr. 6. Now is the chance to observe it for the first time, but it is in the Milky Way.. It will be 17.5 mag in May and June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 18 7.59 -11 0.9 1.267 2.041 127 17.7 10.4 39.8 3:34 ( 0, 44)
May 8 18 9.97 -10 5.2 1.221 2.047 132 17.6 8.5 23.0 3:09 ( 0, 45)
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Image:
1999 Apr. 13
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New comet. It will be faint and low in June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 13 11.51 -4 11.6 3.797 4.744 157 17.7 16.1 254.1 22:34 ( 0, 51)
May 8 13 4.54 -4 43.0 3.868 4.766 149 17.7 14.9 252.2 22:00 ( 0, 50)
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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)
May 1 9 12.44 6 10.2 13.295 13.478 98 17.8 0.5 81.2 20:18 ( 45, 53)
May 8 9 12.80 6 10.3 13.407 13.475 91 17.8 1.0 93.9 20:26 ( 56, 47)
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Image:
1999 Mar. 22
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It is already very faint, 17.9 mag in early April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 7 24.88 34 16.2 2.104 1.966 68 18.0 32.2 91.0 20:18 (105, 48)
May 8 7 42.97 34 6.5 2.195 1.996 65 18.2 32.1 93.6 20:26 (106, 44)
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 16 18.71 30 19.0 5.458 6.128 127 18.1 15.3 313.3 1:46 ( 0, 85)
May 8 16 12.48 31 28.6 5.467 6.145 128 18.1 15.0 308.8 1:12 ( 0, 86)
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New comet. The perihelion passage is in 2002. But because it will go to the Southern Sky, only until mid June the comet will be higher than 40 deg.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 13 2.20 -8 19.3 8.118 9.056 157 18.1 7.4 271.4 22:25 ( 0, 47)
May 8 12 58.80 -8 18.4 8.136 9.022 149 18.1 7.0 270.6 21:54 ( 0, 47)
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Image:
1999 Mar. 22
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It will be fainter than 19 mag and lower than 30 deg in late May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 8 23.26 13 24.4 1.632 1.837 84 18.2 32.3 104.5 20:18 ( 67, 50)
May 8 8 38.33 12 25.3 1.708 1.855 81 18.4 32.8 105.4 20:26 ( 70, 45)
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Image:
1999 Mar. 22
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It will be fainter than 19 mag and lower than 30 deg in late May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 7 55.18 25 21.1 2.606 2.552 75 18.2 22.2 111.6 20:18 ( 88, 51)
May 8 8 5.84 24 23.4 2.733 2.596 71 18.4 22.4 111.6 20:26 ( 91, 45)
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Image:
1999 Jan. 30
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A Centaur asteroid. The perihelion passage is in 1991. It will keep 18 mag until around 2000.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
May 1 14 14.32 14 41.4 13.193 14.076 150 18.3 3.2 283.5 23:37 ( 0, 70)
May 8 14 12.85 14 45.6 13.243 14.094 146 18.4 3.0 278.8 23:08 ( 0, 70)
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