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It will pass only 0.17 A.U. from the sun in mid January, and reach to 1 mag. It had been visible visually in the evening low sky until mid November. But it is not observable now. However, Michael Jager and Gerald Rhemann succeeded to catch it using their CCD camera. The comet is 6.5-7.0 mag, brightening as expected. When the comet reaches to 1 mag, it is not observable on the earth, but it will be visible in the SOHO/LASCO images. In the Southern Hemisphere, it appears at 3.5-4 mag in late January, then it keeps observable while fading gradually. In the Northern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 17 53.05 -10 19.7 1.794 0.871 13 6.5 18:20 ( 82, -7)
Dec. 23 18 10.76 -9 15.0 1.611 0.701 14 5.8 18:23 ( 85, -9)
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When it approached to the earth between from November to early December, it reached up to 8.5 mag as a very large diffuse object with a diameter larger than 10 arcmin (Nov. 23, Peter Bus). It kept 9 mag and observable in excellent condition for a long time since mid October. However, it will fade out rapidly after January. It will be fainter than 13 mag, too faint to see visually, in February. It will set down in the evening sky at 15 mag in March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 5 44.60 51 19.2 0.752 1.685 151 9.0 0:14 (180, 74)
Dec. 23 4 1.89 51 59.2 0.844 1.734 143 9.4 21:48 (180, 73)
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After it kept 5.5-6.0 mag from early October to mid October, it suddenly brightened in outburst on Oct. 24, and reached up to 4.2 mag on Oct. 25 (Maik Meyer). It became easily visible with naked eyes, and a very long tail of 5 degrees was visible with binoculars. But now it is fading, and it has already faded down to 9.7 mag (Dec. 15, Katsumi Yoshimoto). It will be 11.5 mag in early January, then it will be too low to observe.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 20 29.99 0 11.3 2.061 1.598 48 10.0 18:20 ( 66, 30)
Dec. 23 20 44.09 -1 36.8 2.249 1.694 44 10.6 18:23 ( 68, 26)
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It reached up to 9.3 mag between October and November (Oct. 27, Juan Jose Gonzalez). It had been observable in excellent condition. But it is fading now. It has already faded down to 10.7 mag (Dec. 15, Katsumi Yoshimoto). However, it keeps observable after this until May when it fades down to 16 mag. It will be visible visually for a long time until around March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 2 27.93 2 14.3 0.881 1.695 130 10.2 20:48 ( 0, 57)
Dec. 23 2 35.41 2 41.2 0.938 1.709 125 10.4 20:28 ( 0, 58)
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Because it had been locating low in the evening sky since its discovery in June, a few observations have been reported. CCD observers reported as 14 mag, but it was reported much brighter visually as 11.5 mag (Oct. 14, Juan Jose Gonzalez). It was too low in the evening to observe in October and November. But it is getting higher in the morning sky again. It was 13.1 mag on Dec. 16 by CCD observation (Ernesto Guido and Giovanni Sostero). It keeps 13 mag until March and visible visually for a long time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 16 31.14 21 15.2 2.557 2.018 47 12.6 5:30 (257, 19)
Dec. 23 16 44.18 24 10.8 2.496 2.033 51 12.6 5:34 (257, 24)
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In this year, it has been bright as 12-13 mag and visible visually since it appeared in the morning sky in early July. After it reached up to 11.5 mag in outburst in mid October, it kept bright at 12 mag. Now it is still bright as 12.4 mag (Nov. 24, Yoshimi Nagai). It keeps observable in good condition until March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 3 53.22 30 43.5 4.947 5.864 156 13.2 22:13 ( 0, 86)
Dec. 23 3 50.19 30 26.4 4.997 5.866 149 13.3 21:42 ( 0, 85)
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It had been unobservble for a long time. When it appeared again in the morning sky, it has showed a cometary activity and it has become much brighter than expected. Now it is also visible visually at 13.7 mag (Oct. 31, Seiichi Yoshida). It keeps 13-14 mag until March. It is observable in good condition in the Southern Hemisphere. However, in the Northern Hemisphere, it rises only up to 20 degree in November, then it moves southwards and is only observable until December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 12 36.83 -36 48.3 2.221 1.995 63 13.6 5:30 (342, 15)
Dec. 23 12 52.14 -40 23.8 2.185 2.001 66 13.6 5:34 (346, 13)
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Now it is 15.1 mag (Nov. 21, Mitsunori Tsumura). Almost asteroidal. It did not brighten at all since early September. Although the slight cometary activity was detected in late July, it became completely stellar soon. Its tail became visible again in late October, however, now it is stellar. In the Northern Hemisphere, it keeps good condition after this. It keeps locating high until next spring. If it keeps asteroidal after this, it will be 14 mag at best. It may suddenly become active and brighten rapidly someday. But actually, it is getting a bit fainter than this ephemeris recently.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 21 40.90 39 16.8 0.859 1.251 85 14.0 18:20 (109, 62)
Dec. 23 22 4.52 41 16.3 0.831 1.235 85 13.9 18:23 (114, 61)
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It has been visible at 13.5 mag for a long time since last autumn until spring. Now it is 15.3 mag (Nov. 17, Ken-ichi Kadota). It keeps observable in excellent condition until April. Although it is fainter than last year by 1 mag, it will be visible visually at 14 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 13 0.33 22 9.9 5.598 5.519 80 14.4 5:30 (290, 62)
Dec. 23 13 3.92 22 4.9 5.518 5.537 85 14.4 5:34 (299, 67)
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First return of a new bright periodic comet observed at 9 mag in 2001. But it has not been recovered yet. The condition of this apparition is bad. It keeps locating very low in the evening. But it is expected to reach up to 11 mag in February and March. It should be already so bright as 15 mag. But it may be much fainter in fact.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 19 47.63 -12 9.7 2.067 1.365 33 15.5 18:20 ( 64, 14)
Dec. 23 20 8.70 -11 37.1 2.028 1.301 31 14.9 18:23 ( 66, 13)
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It had been observed at 10 mag in the evening sky from winter to spring. Now it is fading. It was still visible visually at 14.2 mag on Oct. 31 (Seiichi Yoshida). Now it is 15.8 mag (Dec. 15, Ernesto Guido and Giovanni Sostero).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 10 6.16 24 20.6 3.359 3.921 118 15.0 4:29 ( 0, 79)
Dec. 23 10 4.12 24 36.1 3.334 3.988 125 15.0 3:59 ( 0, 80)
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It is observable in good condition in the Southern Hemisphere. But it is not observable until January in the Northern Hemisphere. It was discovered at 17.5 mag in May. Then it has not been brightening well. It is 16.5-17 mag still in November. It will be observable also in the Northern Hemisphere in the evening low sky from January to March, however, it will be fainter than 15 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 3 47.69 -60 52.9 2.433 2.674 93 15.2 22:05 ( 0, -6)
Dec. 23 3 23.61 -57 28.9 2.418 2.648 92 15.1 21:14 ( 0, -2)
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It was expected to reach to 13 mag in winter. But actually, it is 15.8 mag (Nov. 21, Mitsunori Tsumura), much fainter than expected. It will be observable in an excellent condition in November and December. However, it reached only to 15.5 mag at best in fact.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 8 17.12 38 0.5 0.731 1.624 142 15.3 2:40 (180, 87)
Dec. 23 8 19.05 43 3.7 0.726 1.637 145 15.4 2:15 (180, 82)
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Recovered after 15 year blank. The condition is good in this return. It was expected to reach to 13.5 mag in November. But actually, it is fainter than expected. Now it is 15.4 mag (Nov. 25, Ken-ichi Kadota). Because it is very diffuse, CCD observers report it very faint. However, if the sky condition is excellent, it will be visible visually at 14 mag. It is getting higher gradually after this also in the Northern Hemisphere. By the way, it was reported as 12 mag in mid November, but it seems to be confused by nearby faint galaxies.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 22 44.25 -9 43.3 0.923 1.163 75 15.4 18:20 ( 25, 42)
Dec. 23 23 10.56 -4 16.3 0.946 1.189 76 15.9 18:23 ( 29, 47)
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In its last apparition, it became brightest about 4 months after the perihelion passage. In this apparition, it was 17.6 mag in late July around the perihelion passage (July 23, Filip Fratev), however, now it brightened up to 15.8 mag (Oct. 27, B. Vasiljevic, R. Palcic). It will be observable at 15.5 mag in good condition from November to January. However, it is reported fainter than this ephemeris recently.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 5 42.80 17 11.3 1.185 2.166 173 15.6 0:07 ( 0, 72)
Dec. 23 5 36.62 17 43.0 1.218 2.196 171 15.6 23:28 ( 0, 73)
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Now it is 15.9 mag, as bright as expected (Oct. 25, Ken-ichi Kadota). It is observable at 15.5-16 mag until next spring. But, in the Northern Hemisphere, it locates somewhat low at 20-30 degree high.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 7 19.73 -33 5.3 3.388 3.949 118 15.6 1:43 ( 0, 22)
Dec. 23 7 3.83 -34 1.4 3.343 3.938 120 15.6 1:00 ( 0, 21)
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It was bright as 13.2 mag on Sept. 27, and visible visually (Seiichi Yoshida). It keeps locating at the same altitude until December. But it has already faded down to 15.4 mag (Dec. 2, Ken-ichi Kadota). It is already too faint to see visually.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 22 37.43 -16 58.9 3.679 3.485 70 16.3 18:20 ( 24, 35)
Dec. 23 22 43.85 -16 5.1 3.788 3.500 65 16.4 18:23 ( 31, 33)
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Now it is 16.2 mag (Oct. 21, Catalina Sky Survey). A bit fainter than this ephemeris, but it became almost as bright as expected. It keeps 16 mag until December. It keeps observable until February when it becomes fainter than 18 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 10 50.77 -10 18.4 1.456 1.833 95 16.3 5:13 ( 0, 45)
Dec. 23 10 55.61 -12 36.5 1.423 1.867 100 16.5 4:50 ( 0, 42)
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It keeps 17 mag for a long time after this until the end of 2007. It will be observable in good condition in 2006 autumn and 2007 autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 21 0.58 33 31.3 3.719 3.597 75 16.9 18:20 (101, 53)
Dec. 23 21 12.51 33 1.0 3.765 3.588 72 16.9 18:23 (102, 49)
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Not yet observed in this return. The condition in this return is bad. It is only observable in the evening low sky before the perihelion passage. It is best to observe in December when it becomes 17 mag and locates at 20 degree high. It will be getting lower gradually after January. It will be 16 mag in February, but will be lower than 10 degree high.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 21 56.17 -28 54.2 2.220 1.903 58 17.3 18:20 ( 28, 20)
Dec. 23 22 10.32 -26 45.7 2.240 1.865 55 17.1 18:23 ( 33, 20)
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It reached up to 16 mag in 2005 summer in the Southern Hemisphere. Now it is 16.6 mag (Sept. 19, Mitsunori Tsumura). The brightening was very slow, and the fading seems also very slow. It will keep 17 mag until January after this. But then it will turn to fade out rapidly, and will be fainter than 18 mag in February.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 5 12.44 -21 7.0 4.332 5.079 135 17.1 23:31 ( 0, 34)
Dec. 23 5 7.55 -20 14.6 4.383 5.117 134 17.1 22:59 ( 0, 35)
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It is outside of Jupiter's orbit. So it keeps 17 mag for a long time until 2007 summer. It had been low temporarily, however, it keeps locating high and observable in good condition for a long time after this because it moves in the northern sky.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 14 38.85 37 32.7 7.310 7.090 73 17.1 5:30 (250, 48)
Dec. 23 14 41.85 37 29.4 7.255 7.103 77 17.1 5:34 (252, 53)
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Now it is 16.9 mag (Oct. 20, Filip Fratev). The perihelion passage is in 2008. It will be observable for several years after this at around 17 mag. But it may fade out rapidly just after the perihelion passage.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 4 25.98 10 52.2 3.788 4.724 159 17.1 22:45 ( 0, 66)
Dec. 23 4 22.27 11 2.7 3.816 4.712 152 17.1 22:14 ( 0, 66)
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It reached to 16 mag in early 2006. It will be fading very slowly from 17 mag to 18 mag until 2007 summer. In the Northern Hemisphere, it keeps locating high.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 14 1.31 30 42.7 5.693 5.505 74 17.2 5:30 (264, 54)
Dec. 23 14 6.09 30 40.6 5.638 5.528 78 17.2 5:34 (268, 59)
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It keeps 17 mag until January. Then it keeps observable util April when it becomes fainter than 18 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 4 12.56 52 13.9 2.968 3.833 147 17.2 22:32 (180, 73)
Dec. 23 4 7.33 51 56.2 2.992 3.830 143 17.2 21:59 (180, 73)
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It is observable in excellent condition at 17.5 mag in December and January. It will be fainer than 18 mag in March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 6 40.67 28 57.3 1.374 2.336 163 17.4 1:04 ( 0, 84)
Dec. 23 6 35.12 29 6.9 1.355 2.332 171 17.3 0:31 ( 0, 84)
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It was visible visually at 12 mag in last spring. Now it is appearing at dawn again. It will be getting higher gradually in the morning sky, however, it is already fainter than 17 mag. It will be fainter than 18 mag in March.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 16 25.16 29 15.7 4.536 4.053 55 17.4 5:30 (250, 24)
Dec. 23 16 30.11 30 14.5 4.551 4.119 58 17.5 5:34 (252, 30)
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Although it was so faint as 20.7 mag on Aug. 2 (P. Birtwhistle), it brightened rapidly as expected, and reached up to 15.7 mag on Nov. 15 (Ken-ichi Kadota). The condition of this apparition is excellent. It keeps 16.5 mag until November. But it will be fainter than 18 mag in December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 4 46.21 69 28.7 0.701 1.552 133 17.5 23:05 (180, 55)
Dec. 23 4 38.43 70 5.6 0.742 1.578 131 17.8 22:30 (180, 55)
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Peculiar asteroid moving along an orbit like a comet. It was observable in excellent condition at opposition in October, then it reached to 16.5 mag. It will fade out gradually after this, and will be fainter than 18 mag in January.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 1 8.06 -6 54.5 1.608 2.137 108 17.6 19:29 ( 0, 48)
Dec. 23 1 14.23 -6 15.6 1.664 2.120 103 17.6 19:07 ( 0, 49)
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It kept 16.5 mag for a year and a half since early 2005. It will start fading after November, and will be fainter than 18 mag at the end of 2006.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 23 37.53 18 17.6 3.978 4.231 98 17.6 18:20 ( 18, 73)
Dec. 23 23 40.31 16 53.2 4.133 4.272 91 17.7 18:23 ( 35, 69)
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It will be brightening gradually at the high altitude until 2007 spring, while it brightens up to 16 mag. Then it keeps 15.5-16 mag for one year and a half until 2008 summer. However, because the comet moves southwards, it is only observable until 2007 June in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 11 10.35 7 24.1 4.146 4.394 98 17.7 5:30 (358, 62)
Dec. 23 11 11.82 6 47.3 3.992 4.346 104 17.6 5:07 ( 0, 62)
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Unexpectedly bright as 17 mag on Oct. 16 (Michael Jager and Gerald Rhemann). It is observable at 17.5 mag in good condition until December.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 2 17.81 29 45.2 1.628 2.435 136 17.7 20:38 ( 0, 85)
Dec. 23 2 18.34 29 40.7 1.697 2.445 129 17.8 20:11 ( 0, 85)
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Although it moves very far away from the earth, now it is brightest around the perihelion. It keeps observable in good condition at 18 mag until February.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 5 37.20 19 13.4 2.628 3.611 175 17.7 0:01 ( 0, 74)
Dec. 23 5 32.22 18 56.3 2.636 3.612 171 17.7 23:24 ( 0, 74)
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It was in major outburst unexpectedly and reached to 10.5 mag in its last appearance in 1999. However, it is faint in this apparition. Now it is 17.4 mag (Nov. 23, Ken-ichi Kadota). It will fade out gradually after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 13 4.46 -9 40.5 2.308 2.096 65 17.7 5:30 (323, 37)
Dec. 23 13 14.63 -11 14.4 2.265 2.130 69 17.8 5:34 (329, 39)
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Now it is around the aphelion and faintest. But it will be observable at 18 mag in good condition until March. It will be 13-14 mag and visible visually again in 2009. It will reach to 12.5 mag in 2010. But in the Northern Hemisphere, it will locate very low in the south at that time.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 6 8.27 28 19.1 3.749 4.723 170 17.8 0:32 ( 0, 83)
Dec. 23 6 2.92 28 27.4 3.740 4.721 174 17.8 23:54 ( 0, 83)
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New comet with a very short period of 4.6 years. Almost stellar, with a long thin tail. It locates at opposition in November and December. In the Northern Hemisphere, it was observable in excellent condition. It kept 16 mag in November, however, it is fading out very rapidly in December. It is already faded down to 17.5-18.0 mag (Dec. 12, Michael Jager).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 3 54.78 16 44.0 0.914 1.857 156 17.9 22:14 ( 0, 72)
Dec. 23 3 47.86 16 9.0 1.034 1.936 147 18.4 21:40 ( 0, 71)
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Now it is 17.9 mag (Oct. 1, Ken-ichi Kadota). It will reach to 15 mag two years later.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 1 53.64 6 33.2 3.828 4.464 124 17.9 20:14 ( 0, 62)
Dec. 23 1 52.76 6 40.2 3.915 4.457 117 17.9 19:45 ( 0, 62)
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It will reach up to 14 mag one year later, in next winter, when it will be observable in excellent condition in the Northern Hemisphere. Now it is only 18 mag. It will be lower in February, then it will be unobservable for a while until July.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 0 26.39 14 43.0 4.007 4.408 107 18.0 18:47 ( 0, 70)
Dec. 23 0 27.95 14 33.0 4.060 4.358 101 17.9 18:23 ( 2, 70)
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It has been lost since its discovery in 1986. The condition is good in this return. In calculation, it was expected to be 14 mag from autumn to winter. But actually, it must be much fainter than expected. Although it has been listed up as an observable target since May, it has not been recovered yet. It was probably in outburst and brightened unexpectedly at the discovery. If it locates within 30 arcmin from the predicted position, it is fainter than 17.5 mag (Nov. 15, Michael Jager).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 22 14.04 -9 19.5 1.454 1.423 68 18.3 18:20 ( 34, 39)
Dec. 23 22 36.64 -7 11.0 1.499 1.439 67 18.5 18:23 ( 38, 40)
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Recovered after 15 year blank since last apparition in 1991. It was originally expected to brighen up to 14.5 mag in 2006 summer. But actually, it was so faint as 18.8 mag (Sept. 18, Ken-ichi Kadota), fainter than expected by 5 mag.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Dec. 16 2 34.04 57 35.5 1.723 2.502 133 19.7 20:54 (180, 67)
Dec. 23 2 33.26 56 18.0 1.789 2.533 129 19.8 20:26 (180, 69)
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