Weekly Information about Bright Comets (2000 Nov. 11: North)

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Updated on November 11, 2000
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere.

Please see also the Comet Rendezvous Calendar, Latest Pictures of Comets.

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* C/1999 T1 ( McNaught-Hartley )


It is expected to reach to 7.8 mag in December and January. Northern people cannot observe it until December.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  12 28.44  -36 26.7   1.877   1.279    39    8.5     41.6  67.3   5:03 (315, -1)  
Nov. 18  12 50.25  -34 24.2   1.834   1.239    39    8.4     42.3  63.8   5:09 (316,  2)  

* 73P/Schwassmann-Wachmann 3


It was very bright as 13 mag on Nov. 4 by KenIchi Kadota, Ageo, Japan. It may reach to 6 mag. However, it locates extremely low, only 8 deg at best from November to December in the Northern Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  13 42.12   -3 49.5   2.266   1.427    24   10.4     49.9 114.3   5:03 (279,  7)  
Nov. 18  14  4.08   -6 15.2   2.186   1.362    25    9.9     52.7 113.6   5:09 (283,  8)  

* C/1999 Y1 ( LINEAR )

Image: 2000 Feb. 5
It will be observable as 12 mag under good condition from October to December. Strange tail was observed.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   0 32.06   32 25.8   2.512   3.351   142   12.2     37.9 217.6  21:07 (  0, 87)  
Nov. 18   0 20.42   28 55.5   2.553   3.326   134   12.2     35.8 213.6  20:28 (  0, 84)  

* C/1999 K8 ( LINEAR )

Image: 1999 Dec. 30
Because it is far away, it keeps brighter than 14 mag until late 2000.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   1 31.12   -6 53.6   3.665   4.522   146   13.4      9.5 209.1  22:07 (  0, 48)  
Nov. 18   1 29.18   -7 47.7   3.751   4.543   138   13.4      8.0 206.8  21:37 (  0, 47)  

* C/1999 T2 ( LINEAR )

Image: 2000 Jan. 8
Although it will be low around December, it is observable again in 2001 spring as 13.5 mag in good condition.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  16 47.46   30 32.9   3.517   3.040    53   13.6     12.6 165.0  18:24 (109, 28)  
Nov. 18  16 49.39   29 13.0   3.550   3.038    51   13.6     11.3 159.9  18:20 (110, 23)  

* 47P/Ashbrook-Jackson


It will be observable as brighter than 14 mag in the evening sky until December. It will be lower and fainter in January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  20 51.73  -24  7.6   2.302   2.340    79   13.7     22.6  59.8  18:24 ( 15, 30)  
Nov. 18  21  1.99  -22 46.6   2.375   2.332    75   13.7     23.9  60.6  18:20 ( 18, 30)  

* C/1999 K5 ( LINEAR )

Image: 1999 July 31
It will be also observable in the Northern Hemisphere after 2001 October, but it will be fainter than 16.5 mag then.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   8 40.18  -74  5.6   3.603   3.480    74   14.0      9.7 239.3   5:03 (359,-19)  
Nov. 18   8 23.87  -74 36.1   3.609   3.504    76   14.0     11.1 250.1   4:35 (  0,-20)  

* 29P/Schwassmann-Wachmann 1

Image: 1999 June 12
Not observable. It will appear at dawn in March.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  17 23.05  -29  7.8   6.807   6.006    33   14.0     10.9  89.2  18:24 ( 53,  1)  
Nov. 18  17 28.99  -29  6.6   6.860   6.004    27   14.0     11.3  89.2  18:20 ( 56, -2)  

* 71P/Clark


It is not observable at all until 2001 summer when it becomes fainter than 19 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  16 11.72  -22 45.8   2.497   1.572    16   14.3     45.2 105.1  18:24 ( 68, -8)  
Nov. 18  16 34.17  -24  2.1   2.501   1.565    14   14.3     45.7 102.9  18:20 ( 67, -9)  

* C/1995 O1 ( Hale-Bopp )

Image: 1997 Apr. 5
Only southern people can observe it. Northern people can never see it again.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   6 33.29  -79 10.9  12.434  12.291    79   14.4      5.2 220.2   3:12 (  0,-24)  
Nov. 18   6 24.10  -79 36.6  12.495  12.337    78   14.4      5.1 228.8   2:36 (  0,-25)  

* C/1997 BA6 ( Spacewatch )

Image: 1998 Dec. 5
Fading now. In the northern hemisphere, it will be higher than 20 deg only in October and November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  20 28.51  -30 49.4   4.843   4.657    73   14.8     11.1  24.2  18:24 ( 18, 22)  
Nov. 18  20 31.24  -29 39.5   4.991   4.698    67   14.9     11.3  29.5  18:20 ( 23, 21)  

* 24P/Schaumasse


It will be observable as 9-10 mag from 2001 March to June. Although it should be bright already, not yet observed in this return.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   2 12.02   -0 47.4   1.397   2.343   157   15.1     18.2 264.2  22:47 (  0, 54)  
Nov. 18   2  3.71   -0 55.1   1.374   2.284   149   14.9     17.3 269.0  22:11 (  0, 54)  

* C/2000 K2 ( LINEAR )


Brightened rapidly and reached to 15 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  19 25.35   -1 23.9   2.689   2.453    65   15.3     30.3  97.3  18:24 ( 50, 41)  
Nov. 18  19 39.50   -1 47.5   2.763   2.465    62   15.5     30.7  95.4  18:20 ( 52, 39)  

* C/1999 U4 ( Catalina-Skiff )

Image: 1999 Nov. 28
It will be observable in good condition as 15 mag from autumn to winter.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   3  0.40   51 59.3   4.766   5.609   145   15.4      9.6 290.5  23:35 (180, 73)  
Nov. 18   2 53.50   52 19.3   4.738   5.584   145   15.3      9.4 284.6  23:01 (180, 73)  

* 110P/Hartley 3


Brightened rapidly and reached to 16.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   4  6.48   34 57.3   1.656   2.600   157   15.8      9.9 251.7   0:46 (  0, 90)  
Nov. 18   4  0.82   34 30.6   1.625   2.588   163   15.7     11.4 246.7   0:13 (  0, 90)  

* 74P/Smirnova-Chernykh

Image: 2000 Jan. 15
It is observable in good condition as 15 mag from February to April.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  11 23.56   10 18.0   3.918   3.554    61   16.0     15.5 108.1   5:03 (290, 43)  
Nov. 18  11 30.37    9 45.6   3.825   3.553    66   15.9     14.7 107.5   5:09 (297, 47)  

* 145P/Shoemaker-Levy 5


It is at best as 16 mag in October and November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   5 52.11   36 30.9   1.280   2.127   138   16.0      9.6 341.9   2:31 (180, 89)  
Nov. 18   5 49.41   37 32.4   1.260   2.149   145   16.0     10.4 323.5   2:01 (180, 88)  

* 2000 DG8


Asteroid with cometary orbit. It will pass the perihelion in January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   7 13.58    1 12.4   1.652   2.279   117   16.2     49.5 228.2   3:53 (  0, 56)  
Nov. 18   6 54.12   -2 52.7   1.531   2.261   126   16.0     59.4 231.6   3:06 (  0, 52)  

* C/2000 U5 ( LINEAR )


New comet. It must be 13 mag in the southern sky in early 2000. Fading now.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   4 51.11    3 30.7   2.685   3.581   150   16.2     20.8 290.5   1:31 (  0, 58)  
Nov. 18   4 41.83    4 23.5   2.708   3.643   157   16.3     21.5 291.2   0:54 (  0, 59)  

* 41P/Tuttle-Giacobini-Kresak


It will be 14 mag in the morning sky in January. If it bursts out, as in the last return, it will be 8 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  12  1.77    0 21.4   1.713   1.294    48   16.7     59.8 108.0   5:03 (292, 29)  
Nov. 18  12 28.95   -1 50.5   1.654   1.245    48   16.3     62.5 107.8   5:09 (295, 29)  

* P/2000 S1 ( Skiff )


New comet. It is fading out after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   0  3.89   -8  2.1   1.978   2.706   128   16.5     10.7 354.2  20:40 (  0, 47)  
Nov. 18   0  3.96   -6 46.7   2.074   2.730   122   16.6     11.0   7.0  20:12 (  0, 48)  

* C/2000 SV74 ( LINEAR )


New comet. It will be observable as 14 mag for one year after 2001 autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   1 12.47    5 58.7   4.958   5.837   150   16.6     10.8 277.9  21:48 (  0, 61)  
Nov. 18   1  7.64    6 10.0   4.982   5.793   141   16.6     10.0 280.2  21:15 (  0, 61)  

* C/1999 H3 ( LINEAR )

Image: 2000 Feb. 17
The condition is good in winter and spring, but it is fading out.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  11 15.64   11  6.8   5.661   5.296    63   17.0      4.0 179.2   5:03 (291, 45)  
Nov. 18  11 15.41   10 40.2   5.587   5.339    70   17.0      3.7 195.9   5:09 (300, 50)  

* 17P/Holmes


Although it keeps brighter than 17 mag in October, it is fading out.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   2 37.74   47 33.7   1.637   2.539   149   17.2     11.8 250.0  23:13 (180, 77)  
Nov. 18   2 30.53   46 58.1   1.663   2.564   149   17.3     11.5 238.4  22:38 (180, 78)  

* 97P/Metcalf-Brewington


The condition is good until late December, but it reaches to 17.5 mag at best.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   0  1.31   -3 39.5   2.094   2.832   129   17.4      5.2 172.4  20:37 (  0, 51)  
Nov. 18   0  2.15   -4 10.4   2.153   2.814   122   17.4      4.7 141.7  20:11 (  0, 51)  

* P/1999 WJ7 ( Korlevic )


Appearing at dawn. It will be 17.5 mag for a while.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  10 13.51    9 40.2   3.558   3.474    77   17.7     12.4 114.3   5:03 (309, 55)  
Nov. 18  10 18.53    9  5.9   3.472   3.488    82   17.6     11.0 115.2   5:09 (320, 58)  

* 65P/Gunn

Image: 1999 Feb. 6
Although it is around the aphelion now, it is observable as 17 mag in good condition from December to March.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   8 31.62   26 51.1   4.142   4.504   105   17.7      3.0  50.2   5:03 (350, 82)  
Nov. 18   8 32.44   27  6.3   4.029   4.494   112   17.7      2.5  18.4   4:43 (  0, 82)  

* C/2000 O1 ( Koehn )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11  22 57.95   32  6.4   5.671   6.261   122   17.7     13.2 221.4  19:34 (  0, 87)  
Nov. 18  22 53.58   30 58.0   5.776   6.277   116   17.8     12.0 217.2  19:02 (  0, 86)  

* P/1999 XN120 ( Catalina )


The condition is good in January and February, but it reaches to 17.5 mag at best.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 11   9 22.67   13 48.7   3.240   3.391    90   17.9      9.7 115.6   5:03 (325, 65)  
Nov. 18   9 26.48   13 20.7   3.146   3.399    96   17.8      8.0 118.0   5:09 (342, 67)  

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