Weekly Information about Bright Comets (2000 Nov. 18: South)

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Updated on November 27, 2000
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern 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. Appearing in the very low sky at dawn also in the Northern Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 18  12 50.25  -34 24.2   1.834   1.239    39    8.4     42.3  63.8   3:05 (299, 20)  
Nov. 25  13 11.33  -32  2.9   1.784   1.208    39    8.2     43.5  60.4   2:59 (297, 19)  

* 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. 18  14  4.08   -6 15.2   2.186   1.362    25    9.9     52.7 113.6   3:05 (285,-10)  
Nov. 25  14 27.55   -8 44.5   2.109   1.298    26    9.3     55.7 112.8   2:59 (288, -9)  

* C/1999 Y1 ( LINEAR )


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. 18   0 20.42   28 55.5   2.553   3.326   134   12.2     35.8 213.6  20:28 (180, 26)  
Nov. 25   0 10.95   25 30.2   2.616   3.301   126   12.2     32.9 209.7  20:35 (169, 29)  

* C/1999 K8 ( LINEAR )


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. 18   1 29.18   -7 47.7   3.751   4.543   138   13.4      8.0 206.8  21:37 (180, 63)  
Nov. 25   1 27.75   -8 33.5   3.849   4.566   131   13.5      6.4 202.2  21:08 (180, 64)  

* C/1999 T2 ( LINEAR )


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. 18  16 49.39   29 13.0   3.550   3.038    51   13.6     11.3 159.9  20:25 (105,-33)  
Nov. 25  16 51.57   28  4.2   3.573   3.037    50   13.6     10.0 154.7  20:35 ( 99,-40)  

* 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. 18  21  1.99  -22 46.6   2.375   2.332    75   13.7     23.9  60.6  20:25 ( 93, 46)  
Nov. 25  21 12.74  -21 23.1   2.447   2.325    71   13.7     25.0  61.1  20:35 ( 91, 40)  

* 29P/Schwassmann-Wachmann 1


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. 18  17 28.99  -29  6.6   6.860   6.004    27   14.0     11.3  89.2  20:25 ( 60,  8)  
Nov. 25  17 35.10  -29  5.4   6.904   6.002    22   14.0     11.6  89.1  20:35 ( 55,  2)  

* C/1999 K5 ( LINEAR )


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. 18   8 23.87  -74 36.1   3.609   3.504    76   14.0     11.1 250.1   3:05 (351, 49)  
Nov. 25   8  3.53  -74 56.0   3.612   3.528    77   14.1     12.5 261.2   2:59 (355, 50)  

* 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. 18  16 34.17  -24  2.1   2.501   1.565    14   14.3     45.7 102.9  20:25 ( 56, -5)  
Nov. 25  16 57.22  -25  6.5   2.506   1.560    13   14.2     46.0 100.6  20:35 ( 53, -6)  

* C/1995 O1 ( Hale-Bopp )


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. 18   6 24.10  -79 36.6  12.495  12.337    78   14.4      5.1 228.8   2:36 (  0, 45)  
Nov. 25   6 13.30  -79 57.8  12.554  12.382    77   14.4      5.1 237.8   1:57 (  0, 45)  

* C/1997 BA6 ( Spacewatch )


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. 18  20 31.24  -29 39.5   4.991   4.698    67   14.9     11.3  29.5  20:25 ( 80, 43)  
Nov. 25  20 34.44  -28 31.7   5.135   4.739    61   15.0     11.5  34.0  20:35 ( 78, 35)  

* C/1999 U4 ( Catalina-Skiff )


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. 18   2 53.50   52 19.3   4.738   5.584   145   15.3      9.4 284.6  23:01 (180,  3)  
Nov. 25   2 46.64   52 32.2   4.723   5.559   144   15.3      8.9 278.8  22:26 (180,  2)  

* 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. 18  19 39.50   -1 47.5   2.763   2.465    62   15.5     30.7  95.4  20:25 (101, 18)  
Nov. 25  19 53.84   -2  4.2   2.838   2.479    58   15.6     30.9  93.5  20:35 ( 97, 14)  

* 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. 18   4  0.82   34 30.6   1.625   2.588   163   15.7     11.4 246.7   0:13 (180, 20)  
Nov. 25   3 54.79   33 54.2   1.606   2.576   166   15.5     12.3 241.6  23:34 (180, 21)  

* 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. 18   6 54.12   -2 52.7   1.531   2.261   126   16.0     59.4 231.6   3:05 (180, 58)  
Nov. 25   6 30.01   -7 20.6   1.440   2.244   134   15.8     68.6 235.0   2:15 (180, 62)  

* 74P/Smirnova-Chernykh


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. 18  11 30.37    9 45.6   3.825   3.553    66   15.9     14.7 107.5   3:05 (250, 11)  
Nov. 25  11 36.78    9 16.4   3.727   3.551    72   15.9     13.6 106.7   2:59 (248, 14)  

* 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. 18  12 28.95   -1 50.5   1.654   1.245    48   16.3     62.5 107.8   3:05 (268,  6)  
Nov. 25  12 57.35   -4  5.0   1.603   1.199    48   15.9     64.9 107.3   2:59 (271,  6)  

* 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. 18   5 49.41   37 32.4   1.260   2.149   145   16.0     10.4 323.5   2:01 (180, 17)  
Nov. 25   5 44.93   38 26.8   1.251   2.172   151   16.0     11.4 309.0   1:29 (180, 17)  

* 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. 18   4 41.83    4 23.5   2.708   3.643   157   16.3     21.5 291.2   0:54 (180, 51)  
Nov. 25   4 32.41    5 19.3   2.749   3.705   163   16.4     21.6 292.2   0:17 (180, 50)  

* 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. 18   1  7.64    6 10.0   4.982   5.793   141   16.6     10.0 280.2  21:15 (180, 49)  
Nov. 25   1  3.25    6 23.6   5.019   5.749   134   16.6      9.1 283.4  20:44 (180, 49)  

* 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. 18   0  3.96   -6 46.7   2.074   2.730   122   16.6     11.0   7.0  20:25 (173, 62)  
Nov. 25   0  5.13   -5 29.4   2.177   2.754   115   16.8     11.7  18.1  20:35 (156, 58)  

* C/1999 H3 ( LINEAR )


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. 18  11 15.41   10 40.2   5.587   5.339    70   17.0      3.7 195.9   3:05 (247, 13)  
Nov. 25  11 14.65   10 16.6   5.509   5.382    77   17.0      3.9 214.9   2:59 (243, 18)  

* 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. 18   2 30.53   46 58.1   1.663   2.564   149   17.3     11.5 238.4  22:38 (180,  8)  
Nov. 25   2 24.46   46 10.0   1.702   2.589   147   17.5     11.0 226.4  22:04 (180,  9)  

* 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. 18   0  2.15   -4 10.4   2.153   2.814   122   17.4      4.7 141.7  20:25 (173, 59)  
Nov. 25   0  4.05   -4 31.4   2.219   2.796   116   17.4      5.7 114.0  20:35 (157, 57)  

* 70P/Kojima


Not yet observed in this return. It reches to 17.5 mag at best in December and January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 18  11 37.56    5 27.8   2.317   2.070    63   17.6     29.2 107.7   3:05 (254, 12)  
Nov. 25  11 50.33    4 27.4   2.262   2.085    67   17.6     28.0 107.3   2:59 (254, 15)  

* 65P/Gunn


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. 18   8 32.44   27  6.3   4.029   4.494   112   17.7      2.5  18.4   3:05 (204, 24)  
Nov. 25   8 32.44   27 24.6   3.921   4.484   119   17.6      3.0 343.9   2:59 (199, 25)  

* 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. 18  10 18.53    9  5.9   3.472   3.488    82   17.6     11.0 115.2   3:05 (238, 25)  
Nov. 25  10 22.88    8 34.8   3.385   3.503    88   17.6      9.4 116.4   2:59 (235, 28)  

* 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. 18   9 26.48   13 20.7   3.146   3.399    96   17.8      8.0 118.0   3:05 (224, 30)  
Nov. 25   9 29.45   12 56.0   3.054   3.406   102   17.7      6.2 121.7   2:59 (220, 32)  

* C/2000 O1 ( Koehn )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Nov. 18  22 53.58   30 58.0   5.776   6.277   116   17.8     12.0 217.2  20:25 (161, 21)  
Nov. 25  22 50.05   29 52.7   5.890   6.293   109   17.8     10.8 212.6  20:35 (152, 19)  

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