Weekly Information about Bright Comets (2000 Oct. 28: North)

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 Updated on November 10, 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)  
Oct. 28  11 42.14  -39 40.7   1.947   1.379    41    8.9     41.5  74.1   4:52 (315, -6)  
Nov.  4  12  5.78  -38 11.8   1.915   1.326    40    8.7     41.3  70.7   4:58 (315, -4)

* 73P/Schwassmann-Wachmann 3
It may keep the brightness of the outburst in the last return and 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)  
Oct. 28  13  2.01    0 46.5   2.436   1.559    21   11.5     44.8 115.0   4:52 (272,  4)  
Nov.  4  13 21.48   -1 28.7   2.350   1.493    23   11.0     47.2 114.7   4:58 (276,  5)

* 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)  
Oct. 28   1  1.72   39  8.2   2.509   3.405   149   12.3     38.5 226.5  22:31 (180, 86)  
Nov.  4   0 45.88   35 53.1   2.497   3.377   147   12.2     38.8 221.9  21:48 (180, 89)

* 47P/Ashbrook-Jackson
It keeps brighter than 13.5 mag until December, and the altitude will be higher slowly to 30 deg. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28  20 33.03  -26 42.4   2.156   2.359    89   13.2     19.7  57.1  18:35 (  8, 28)  
Nov.  4  20 42.04  -25 26.2   2.229   2.349    84   13.2     21.2  58.7  18:29 ( 11, 29)

* 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)  
Oct. 28   1 36.21   -4 41.8   3.533   4.480   160   13.3     12.1 210.2  23:07 (  0, 50)  
Nov.  4   1 33.50   -5 51.5   3.592   4.501   153   13.3     10.9 210.1  22:36 (  0, 49)

* 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)  
Oct. 28  16 44.78   33 47.1   3.429   3.049    59   13.5     15.6 174.7  18:35 (108, 38)  
Nov.  4  16 45.88   32  4.1   3.477   3.044    56   13.5     14.1 169.9  18:29 (108, 33)

* 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)  
Oct. 28   9  0.83  -72 49.5   3.579   3.436    73   13.9      7.0 216.6   4:52 (352,-19)  
Nov.  4   8 52.41  -73 28.8   3.593   3.457    74   14.0      8.3 228.4   4:58 (355,-19)

* 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)  
Oct. 28  17 11.80  -29 10.0   6.673   6.011    44   14.0     10.1  89.0  18:35 ( 48,  6)  
Nov.  4  17 17.31  -29  8.8   6.745   6.008    39   14.0     10.5  89.2  18:29 ( 50,  3)

* 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)  
Oct. 28   6 46.58  -78  9.1  12.310  12.199    81   14.3      5.3 204.4   4:20 (  0,-23)  
Nov.  4   6 40.78  -78 41.5  12.373  12.245    80   14.3      5.2 212.1   3:47 (  0,-24)

* 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)  
Oct. 28  15 28.93  -19 43.6   2.493   1.596    19   14.4     44.0 109.0  18:35 ( 70, -6)  
Nov.  4  15 49.96  -21 19.2   2.495   1.583    18   14.4     44.7 107.1  18:29 ( 69, -7)

* 2P/Encke
Not observable in the Northern Hemisphere. It is low in the evening sky in the southern hemisphere. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28  16 30.55  -27 49.9   1.738   1.099    35   14.4     65.5  97.9  18:35 ( 55,  0)  
Nov.  4  17  3.05  -28 33.1   1.860   1.207    35   15.2     58.0  94.2  18:29 ( 53,  2)

* 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)  
Oct. 28  20 24.76  -33 16.5   4.542   4.577    85   14.5     11.1  11.2  18:35 (  9, 21)  
Nov.  4  20 26.31  -32  1.7   4.693   4.617    79   14.7     11.0  18.1  18:29 ( 13, 22)

* 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)  
Oct. 28  18 57.92   -0 16.2   2.548   2.437    72   15.1     29.2 101.4  18:35 ( 46, 44)  
Nov.  4  19 11.47   -0 53.4   2.618   2.444    68   15.2     29.8  99.3  18:29 ( 48, 43)

* 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)  
Oct. 28   2 28.60   -0  4.4   1.483   2.459   166   15.7     17.2 256.4   0:03 (  0, 55)  
Nov.  4   2 20.47   -0 29.8   1.433   2.401   163   15.4     18.2 260.1  23:23 (  0, 54)

* 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)  
Oct. 28   3 13.41   50 58.4   4.863   5.661   140   15.5      9.7 303.2   0:48 (180, 74)  
Nov.  4   3  7.11   51 32.3   4.808   5.635   143   15.4      9.7 296.7   0:14 (180, 73)

* 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)  
Oct. 28   5 51.56   34 17.4   1.343   2.087   125   15.9     10.6  22.5   3:25 (  0, 89)  
Nov.  4   5 52.85   35 25.2   1.308   2.106   132   15.9      9.6   2.9   2:59 (180, 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)  
Oct. 28  11  8.84   11 30.7   4.093   3.558    51   16.1     17.0 108.9   4:52 (279, 33)  
Nov.  4  11 16.37   10 53.1   4.008   3.556    56   16.0     16.3 108.6   4:58 (285, 38)

* 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)  
Oct. 28   0  7.28  -10 24.0   1.812   2.662   141   16.2     11.3 327.7  21:38 (  0, 45)  
Nov.  4   0  4.99   -9 14.8   1.890   2.683   134   16.3     10.8 340.6  21:08 (  0, 46)

* 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)  
Oct. 28   1 23.02    5 41.4   4.956   5.925   166   16.7     11.7 275.1  22:53 (  0, 61)  
Nov.  4   1 17.63    5 49.3   4.949   5.881   158   16.7     11.4 276.2  22:20 (  0, 61)

* 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)  
Oct. 28   2 53.56   47 56.5   1.617   2.491   144   17.0     11.2 274.9   0:28 (180, 77)  
Nov.  4   2 45.61   47 53.9   1.621   2.515   147   17.1     11.6 261.9  23:48 (180, 77)

* 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)  
Oct. 28  11 14.68   12  8.2   5.787   5.210    50   17.0      5.1 158.4   4:52 (278, 32)  
Nov.  4  11 15.38   11 36.2   5.728   5.253    56   17.0      4.5 166.9   4:58 (284, 38)

* 61P/Shajn-Schaldach
Although it is in the evening low sky as 17 mag in 2000 autumn, it will be observable again as 16.5 mag in 2001 autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28  20 25.09  -16 53.8   2.489   2.674    89   17.2     13.9  86.0  18:35 ( 11, 37)  
Nov.  4  20 32.29  -16 44.5   2.560   2.653    84   17.1     15.7  83.8  18:29 ( 16, 37)

* 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)  
Oct. 28   0  2.71   -2  8.9   2.001   2.871   144   17.4      8.5 204.7  21:33 (  0, 53)  
Nov.  4   0  1.51   -2 58.8   2.043   2.851   137   17.4      6.7 193.2  21:05 (  0, 52)

* 110P/Hartley 3
It keeps 17.5 mag with a good condition until late January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28   4 15.14   35 21.3   1.756   2.627   144   17.7      5.5 265.9   1:49 (180, 90)  
Nov.  4   4 11.36   35 14.0   1.700   2.613   151   17.6      7.8 257.6   1:18 (180, 90)

* C/2000 O1 ( Koehn )
It keeps 17.5 mag until late October. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28  23  9.35   34 27.3   5.499   6.230   133   17.6     15.4 229.3  20:40 (  0, 89)  
Nov.  4  23  3.21   33 16.6   5.578   6.245   128   17.7     14.4 225.4  20:06 (  0, 88)

* 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)  
Oct. 28  10  1.66   10 56.5   3.724   3.445    66   17.7     14.8 112.9   4:52 (293, 46)  
Nov.  4  10  7.87   10 17.2   3.643   3.460    71   17.7     13.7 113.6   4:58 (300, 50)

* 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)  
Oct. 28   8 27.68   26 30.1   4.377   4.523    92   17.9      5.3  78.3   4:52 (295, 73)  
Nov.  4   8 30.01   26 39.1   4.259   4.513    98   17.8      4.1  68.4   4:58 (313, 78)

* 113P/Spitaler
The condition is good until late January, but it reaches to 18 mag at best. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28   0 40.45    5 36.6   1.369   2.314   156   17.8      9.5 265.6  22:11 (  0, 61)  
Nov.  4   0 36.51    5 34.1   1.389   2.295   148   17.8      7.2 270.4  21:40 (  0, 61)

* C/1999 K2 ( Ferris )

 Image: 1999 May 31
Fading gradually. It keeps 17-18 mag at good position until October. No observations reported since 1999 August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct. 28  19  8.53   36 32.7   6.673   6.674    85   17.9      3.7 138.0  18:35 (102, 67)  
Nov.  4  19 10.21   36 15.4   6.763   6.703    82   17.9      4.0 123.9  18:29 (103, 63)

* 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)  
Oct. 28   9 12.79   14 52.3   3.427   3.377    78   18.0     12.6 112.5   4:52 (301, 57)  
Nov.  4   9 18.09   14 19.3   3.334   3.384    84   17.9     11.2 113.9   4:58 (311, 62)

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