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It started fading slowly. It is visible all night in the Northern Hemisphere, but the altitude is low at dawn. In the Northern Hemisphere, it keeps observable in good condition for a long time while the comet is bright enough visible visually until 2005 October when it becomes faint as 14 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 2 56.85 59 18.9 0.469 1.207 106 4.2 71.2 353.1 20:46 (162,-10)
Feb. 5 2 51.42 66 37.0 0.534 1.218 102 4.5 55.4 357.8 20:38 (164,-17)
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It locates high in the Southern Hemisphere. It will be fading gradually in the evening sky. It becomes too low in the evening sky at 12-13 mag in April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 3 51.53 -35 50.7 1.674 1.972 92 9.1 49.4 333.2 20:46 ( 82, 71)
Feb. 5 3 41.48 -31 4.7 1.851 2.057 87 9.5 40.2 339.4 20:38 ( 91, 65)
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In the Northern Hemisphere, it is observable in the morning low sky until March when it reaches to 8 mag In the Southern Hemisphere, it becomes observable in the morning low sky after March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 19 20.20 26 54.0 1.848 1.421 49 10.4 39.8 130.6 3:38 (255,-28)
Feb. 5 19 35.72 23 50.4 1.800 1.332 46 10.1 40.1 131.4 3:48 (256,-23)
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In the Northern Hemisphere, it is observable in the morning until early February, but will be unobservable in mid February. It goes to the southern sky and northern people cannot see it around the perihelion passage. It will appear in the morning again at 13 mag in June, then it keeps observable while fading. In the Southern Hemisphere, it is observable as bright as 9-10 mag from February to April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 14 11.24 -30 36.1 1.186 1.516 88 11.7 67.5 163.3 3:38 (268, 64)
Feb. 5 14 23.18 -39 4.0 1.042 1.429 89 11.1 84.2 164.5 3:48 (288, 71)
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The condition of this return is bad. It is not observable around the perihelion passage. It will appear at dawn in July at 14.5 mag, then it will be fading after that.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 20 27.37 -19 34.1 2.417 1.438 4 11.6 49.7 82.4 3:38 (306,-14)
Feb. 5 20 51.71 -18 41.0 2.407 1.431 6 11.5 50.0 80.4 3:48 (303,-12)
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Very diffused and widely spreading visually. It will be 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)
Jan. 29 12 42.62 14 11.8 0.818 1.588 123 11.6 16.5 64.3 3:38 (190, 40)
Feb. 5 12 48.59 15 6.5 0.804 1.615 128 11.8 12.9 49.5 3:48 (180, 40)
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It will be fading gradually after this. It will be visible visually until May when it becomes too low in the evening sky at 13-14 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 3 35.16 12 52.6 1.666 2.149 105 11.6 17.9 74.7 20:46 (148, 36)
Feb. 5 3 43.87 13 26.8 1.761 2.169 100 11.8 19.6 75.2 20:38 (145, 34)
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It will be fading gradually after this. In the Northern Hemisphere, it keeps observable until July when it becomes 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)
Jan. 29 23 52.58 50 55.3 2.080 2.142 80 12.0 19.1 41.1 20:46 (138,-22)
Feb. 5 0 2.74 52 38.8 2.154 2.168 77 12.2 20.8 43.2 20:38 (139,-24)
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It keeps observable at 12-13 mag in the evening sky until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 2 47.37 20 41.7 1.548 1.927 96 12.7 20.9 57.0 20:46 (141, 23)
Feb. 5 2 56.85 22 1.5 1.600 1.907 91 12.6 23.3 60.5 20:38 (140, 21)
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It became bright at 12 mag in outburst in early January. But the recent activity after that is uncertain.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 0 15.76 10 13.1 6.178 5.732 58 13.6 9.1 71.1 20:46 (106, 5)
Feb. 5 0 19.97 10 34.8 6.272 5.732 52 13.7 9.7 70.3 20:38 (104, 2)
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It has brightened to 16 mag in mid January. We can observe it in good condition while it is brightening, then the comet will reach to 9 mag in spring and summer. It may become a naked-eye object due to the Deep Impact mission on July 4.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 13 8.20 8 54.2 1.484 2.110 115 14.5 14.7 88.3 3:38 (200, 44)
Feb. 5 13 14.73 9 1.0 1.379 2.070 121 14.1 12.9 83.2 3:48 (189, 46)
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It tends to become brightest after the perihelion passage. It was 16 mag in early January, fainter than expected by about 1-1.5 mag. If it brightens as expected, it will reach to 14 mag in February at the opposition.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 10 36.92 28 34.7 1.887 2.798 152 14.2 11.9 329.7 2:05 (180, 26)
Feb. 5 10 33.25 29 45.0 1.877 2.812 157 14.2 12.4 322.0 1:33 (180, 25)
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It keeps bright as 13.5 mag still in early January since the outburst in late November.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 3 35.91 54 19.4 2.190 2.713 111 14.4 29.6 250.1 20:46 (165, -2)
Feb. 5 3 16.74 53 6.7 2.332 2.729 103 14.6 23.4 244.1 20:38 (159, -4)
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Completely diffused, but still bright at 12 mag visually. It keeps observable for a long time after this in the Northern Hemisphere. It is also visible at midnight or dawn, but low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 22 44.78 56 47.6 3.798 3.734 78 14.4 19.3 110.1 20:46 (140,-33)
Feb. 5 22 59.76 56 4.4 3.938 3.810 75 14.6 18.3 107.7 20:38 (139,-34)
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It will be getting fainter gradually until June when it becomes 17 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 10 49.26 -16 17.0 3.446 4.193 134 14.4 19.5 284.4 2:17 (180, 71)
Feb. 5 10 39.90 -15 38.4 3.449 4.270 142 14.5 20.6 287.4 1:40 (180, 71)
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It will be fading slowly until August when it becomes low in the evening sky at 16.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 0 49.55 50 52.3 1.739 1.952 86 14.8 20.1 56.1 20:46 (143,-15)
Feb. 5 1 3.03 52 12.4 1.794 1.956 84 14.8 22.4 58.4 20:38 (144,-16)
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Not yet observed in this return. The condition of this appearance is bad. It will appear at the evening low sky in March at 12.5 mag in the Northern Hemisphere, or in April at 14 mag in the Southern Hemisphere. Then it will become faint rapidly while locating very low in the evening.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 21 35.21 -7 34.8 1.837 0.929 15 15.6 65.3 73.2 20:46 ( 68,-16)
Feb. 5 22 5.58 -5 13.9 1.767 0.868 16 14.9 70.2 72.4 20:38 ( 72,-16)
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It will be at opposition and reach to 13.5 mag in March and April. No observations have been reported since 2004 August. So it is uncertain if the comet is brightening as expected.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 15 30.80 -30 49.9 2.269 2.169 71 15.1 16.5 227.1 3:38 (279, 48)
Feb. 5 15 22.71 -32 12.6 2.083 2.143 79 14.9 21.6 235.0 3:48 (276, 58)
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It has been brightening rapidly. It may be reach to 13 mag in 2006.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 5 23.27 48 20.5 5.457 6.126 129 14.9 3.0 251.9 20:48 (180, 7)
Feb. 5 5 21.66 48 13.0 5.508 6.099 122 14.9 2.1 235.2 20:38 (177, 7)
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It keeps 15-16 mag in the evening sky until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 2 7.66 -4 28.9 1.194 1.402 79 15.1 44.7 50.3 20:46 (113, 36)
Feb. 5 2 24.37 -1 6.8 1.210 1.387 77 15.0 47.1 51.9 20:38 (116, 33)
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It appeared in the evening very low sky in early January, when it was observed at 11 mag visually. It is extremely diffused and fading rapidly. No observations have been reported since Jan. 9.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 1 12.97 -17 48.2 1.123 1.109 63 15.2 86.4 74.5 20:46 ( 91, 33)
Feb. 5 1 48.81 -15 11.1 1.280 1.253 65 16.0 68.6 72.1 20:38 ( 96, 35)
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It will reach to 9 mag in 2006 spring. It has been brightening well as expected. In this season, it keeps observable until March at 15.5 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 4 23.33 -18 30.1 4.280 4.646 105 15.3 10.5 279.2 20:46 (138, 69)
Feb. 5 4 18.65 -18 15.8 4.315 4.582 99 15.3 9.0 285.2 20:38 (127, 65)
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Diffused, and fading rapidly. It was around 16 mag in mid December, fainter than this ephemeris by 1 mag.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 11 7.53 42 49.5 2.911 3.730 141 15.6 14.7 280.3 2:35 (180, 12)
Feb. 5 10 57.97 43 3.2 2.947 3.798 145 15.8 15.4 274.9 1:58 (180, 12)
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In its last return in 1997, it burst out after the perihelion passage and became extremely bright, reached to 11 mag. However, it is faint in this return. It will be fading gradually after this, and will be fainter than 18 mag in 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 0.34 31 51.1 1.035 2.005 165 15.6 19.5 336.9 0:28 (180, 23)
Feb. 5 8 56.10 33 48.2 1.060 2.020 161 15.8 17.1 334.2 23:52 (180, 21)
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It will be observable in good condition at 16 mag until March. It was reported as 14.4 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 45.09 59 14.7 1.147 1.986 137 15.8 9.6 191.6 23:09 (180, -4)
Feb. 5 7 44.11 57 56.8 1.147 1.970 134 15.7 12.8 180.7 22:41 (180, -3)
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It will be too low in the evening sky in mid February, then it will be unobservable.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 0 37.13 4 8.6 0.708 0.892 61 15.9 38.2 218.2 20:46 (104, 13)
Feb. 5 0 25.21 0 34.4 0.716 0.758 49 15.9 42.6 222.0 20:38 ( 97, 9)
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It will brighten gradually, then it will be 15 mag in spring and summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 15 35.15 -16 22.3 3.553 3.411 73 16.4 14.5 106.4 3:38 (261, 41)
Feb. 5 15 41.66 -16 49.6 3.441 3.397 79 16.4 13.4 106.3 3:48 (256, 48)
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Almost stellar. It keeps observable in good condition until April when it becomes 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)
Jan. 29 1 44.69 46 17.7 1.131 1.535 92 16.5 38.6 64.6 20:46 (146, -5)
Feb. 5 2 8.82 48 1.6 1.215 1.582 91 16.7 37.8 69.0 20:38 (148, -5)
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It keeps 17 mag until May when it becomes low in the evening.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 5 22.50 26 18.3 2.122 2.880 132 16.5 3.2 220.6 20:47 (180, 29)
Feb. 5 5 22.10 26 2.1 2.188 2.872 125 16.6 2.3 166.9 20:38 (175, 29)
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It will be fading gradually, and will be fainter than 18 mag in April.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 10 58.04 29 21.5 1.693 2.581 147 16.8 14.1 319.6 2:26 (180, 26)
Feb. 5 10 52.56 30 34.0 1.704 2.622 153 16.8 14.8 311.7 1:53 (180, 25)
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It will be getting fainter and lower until March, when it becomes 17.5 mag and too low.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 0 41.46 10 27.0 2.798 2.537 64 16.8 24.3 66.3 20:46 (110, 10)
Feb. 5 0 52.24 11 36.1 2.877 2.540 60 16.9 25.1 66.6 20:38 (110, 8)
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Appearing at dawn. It will be observable in good condition at 15.5 mag from April to June.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 18 15.97 -3 45.5 4.405 3.697 39 16.9 5.5 27.1 3:38 (274, 1)
Feb. 5 18 16.94 -3 8.8 4.295 3.672 45 16.8 5.8 15.8 3:48 (268, 8)
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Because it moves in the northern sky, it keeps observable for a long time in the Northern Hemisphere. It has been brightening rapidly, but it will reach to 16 mag at best in early 2006.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 4 54.68 48 13.7 5.131 5.747 124 17.2 3.3 274.0 20:46 (175, 7)
Feb. 5 4 52.82 48 14.4 5.190 5.721 118 17.2 2.0 270.2 20:38 (172, 6)
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It keeps 17.5 mag until May when it becomes low in the evening sky. It will be observable again at 16.5 mag in 2006.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 3 20.93 18 46.7 2.505 2.899 103 17.3 7.9 34.3 20:46 (147, 29)
Feb. 5 3 23.73 19 33.7 2.573 2.871 97 17.3 9.7 44.9 20:38 (144, 26)
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It will be getting lower in the evening sky after this, then will be unobservable in March.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 1 25.11 11 0.6 3.217 3.105 74 17.4 15.7 73.6 20:46 (118, 18)
Feb. 5 1 32.54 11 33.2 3.303 3.098 69 17.5 16.9 73.2 20:38 (116, 15)
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Although the condition is good, it will be fainter than 18 mag in late February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 4 3.00 16 17.5 1.310 1.920 112 17.4 19.0 46.6 20:46 (157, 35)
Feb. 5 4 10.48 17 47.3 1.375 1.920 107 17.5 21.0 53.0 20:38 (154, 33)
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Split comets. It is observable in good condition at 17.5 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 9 32.48 40 34.9 3.500 4.414 155 17.5 7.5 296.2 1:00 (180, 14)
Feb. 5 9 28.23 40 55.0 3.500 4.413 154 17.5 7.4 288.9 0:29 (180, 14)
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Recovery of a peculiar asteroid 2004 FS101 discovered in 2004 spring. It keeps observable at 15-16 mag for a long time from 2005 spring to 2006 winter. Because it moves in the northern sky, it keeps observable for a long time 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 33.31 21 36.9 4.558 4.818 99 17.6 14.3 18.1 3:38 (216, 24)
Feb. 5 14 35.24 23 16.2 4.421 4.773 105 17.5 15.1 12.1 3:48 (207, 27)
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Although the condition is good, it will be fainter than 18 mag in February.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 5 25.37 31 47.7 1.115 1.926 132 17.6 10.0 100.2 20:50 (180, 23)
Feb. 5 5 31.60 31 34.3 1.171 1.934 127 17.7 13.0 99.0 20:38 (178, 23)
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It keeps 18 mag until spring.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 14 6.01 47 33.1 6.327 6.726 109 17.8 10.1 325.9 3:38 (199, 4)
Feb. 5 14 1.59 48 32.0 6.291 6.751 113 17.8 10.9 320.5 3:48 (192, 5)
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Although it has passed the perihelion about 1 year ago, it has been brightening gradually, and reached to 17.5 mag now.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 7 6.66 47 18.5 3.228 4.069 144 17.8 6.8 270.3 22:31 (180, 8)
Feb. 5 7 2.42 47 15.2 3.294 4.085 138 17.9 5.6 260.2 21:59 (180, 8)
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Fading rapidly, and it will be fainter than 18 mag soon.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 2 15.90 17 52.2 1.614 1.870 88 17.8 31.1 62.7 20:46 (133, 21)
Feb. 5 2 29.71 19 28.8 1.706 1.896 85 18.2 31.4 64.7 20:38 (133, 19)
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It keeps 18 mag until summer.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 16 43.37 35 2.7 7.292 7.157 78 17.9 5.4 2.7 3:38 (230, -4)
Feb. 5 16 43.27 35 42.5 7.235 7.170 82 17.9 6.0 354.1 3:48 (224, 1)
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It will be observable at 17.5 mag until May.
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Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Mot.(') p.a. Best Time(A, h)
Jan. 29 11 26.69 1 36.1 3.774 4.547 137 18.0 14.3 246.2 2:54 (180, 53)
Feb. 5 11 20.18 0 56.5 3.686 4.534 145 17.9 15.8 249.6 2:20 (180, 54)
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