Weekly Information about Bright Comets (2001 Oct. 6: South)

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 Updated on October 15, 2001
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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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* 19P/Borrelly
It keeps 10 mag until mid November in the morning sky. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   8 38.99   23 31.0   1.424   1.381    66   10.2     48.6  75.8   4:04 (229, 12)  
Oct. 13   9  2.94   24 51.2   1.401   1.397    68   10.2     47.7  76.4   3:53 (230, 10)

* P/2001 Q2 ( Petriew )
It will fade out after this and becomes fainter than 13 mag in December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   8 53.65    7 46.6   1.135   1.068    59   10.6     48.1 119.6   4:04 (244, 21)  
Oct. 13   9 12.34    5  5.0   1.172   1.116    61   10.8     44.0 120.6   3:53 (246, 22)

* C/2000 WM1 ( LINEAR )
It was 11-12 mag visually in late September. It brightens rapidly after this, will be 10 mag in late October and 6.5 mag in late November. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   4 58.22   51 13.8   1.516   2.090   110   11.9      0.7  53.2   4:00 (180,  4)  
Oct. 13   4 57.16   51 11.9   1.328   1.989   116   11.5      3.8 253.3   3:31 (180,  4)

* C/2000 SV74 ( LINEAR )
It will be observable at 12.5 mag until 2002 September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   1 17.52   56 40.7   3.315   4.009   128   12.6     20.3 298.6   0:20 (180, -2)  
Oct. 13   1  1.62   57 39.8   3.265   3.980   129   12.6     20.3 291.0  23:31 (180, -3)

* C/1999 Y1 ( LINEAR )
It locates high in the Southern Hemisphere. Northern people can never see it again. Some reported this at 11-12 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  22 11.64  -53 15.6   3.111   3.623   113   13.2     20.4 259.1  21:09 (  0, 72)  
Oct. 13  21 57.09  -53 32.6   3.251   3.658   106   13.3     17.1 265.8  20:27 (  0, 71)

* P/2001 Q6 ( NEAT )
New periodic comet. It bursted out and brightened 1-2 mag. Akimasa Nakamura observed it at 13.6 mag on Sept. 28. It is at opposition and reach to 13 mag in October. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   3 36.09   51 47.2   0.685   1.479   121   13.4     97.1 350.6   2:38 (180,  4)  
Oct. 13   3 16.56   63  0.4   0.667   1.454   120   13.2     98.8 343.7   1:52 (180, -8)

* 29P/Schwassmann-Wachmann 1
It was observed at 11.5 mag visually in late August, but now it is not in outburst. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  18 42.78  -26 51.7   5.870   5.899    86   13.6      4.9  71.2  19:33 (101, 65)  
Oct. 13  18 45.49  -26 40.4   5.979   5.897    80   13.7      5.9  73.9  19:40 ( 95, 58)

* P/2001 MD7 ( LINEAR )
It reaches to 13.5 mag in November. It locates in the evening sky until 2002 April. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  19  0.01  -28 54.1   1.017   1.431    90   14.1     29.4 106.5  19:33 (101, 70)  
Oct. 13  19 16.28  -29 46.4   1.025   1.392    86   14.0     33.2 101.6  19:40 ( 95, 66)

* C/2000 CT54 ( LINEAR )
It is not observable in the Northern Hemisphere until when it locates low in the evening sky at 15 mag in December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  22 25.97  -64 22.7   2.910   3.324   105   14.0     19.2 347.5  21:24 (  0, 61)  
Oct. 13  22 22.63  -62  8.1   2.979   3.346   102   14.1     19.8 353.4  20:54 (  0, 63)

* 51P/Harrington
KenIchi Kadota observed it at 14.3 mag on Sept. 23. It bursted out and brightened 2.5 mag. Now it is 14.5 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   5 49.78   13  9.0   1.467   1.979   105   14.7     10.0  97.5   4:04 (195, 41)  
Oct. 13   5 53.64   13  0.0   1.434   2.018   110   14.9      6.3 101.2   3:53 (191, 41)

* C/1999 U4 ( Catalina-Skiff )
It was 16.1 mag on Aug. 22 by KenIchi Kadota. It is observable until 2002 autumn at 15 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   9 18.62   67 43.6   4.969   4.919    81   14.9     13.8  73.6   4:04 (202,-23)  
Oct. 13   9 34.71   68 10.7   4.905   4.917    84   14.9     13.3  72.5   3:53 (201,-23)

* C/1995 O1 ( Hale-Bopp )
Only southern people can observe it. Northern people can never see it again. Observations since 2001 July reported it between 17.5 and 20.4 mag, much fainter than the ephemeris. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   6 39.52  -79  1.6  14.413  14.367    85   15.4      4.4 185.8   4:04 (354, 45)  
Oct. 13   6 37.74  -79 32.0  14.480  14.410    84   15.4      4.4 192.6   3:53 (355, 45)

* C/1997 BA6 ( Spacewatch )
After the small outburst up to 15 mag in July, it keeps the brightness still in mid September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  20 50.81   -1 35.0   6.175   6.739   120   15.8      3.7 274.6  19:50 (180, 57)  
Oct. 13  20 49.36   -1 32.6   6.323   6.785   113   15.9      2.6 279.4  19:40 (171, 56)

* 16P/Brooks 2
Fading now. It will be fainter than 18 mag in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   5 14.55   16 22.5   1.332   1.960   113   16.0     11.9 108.1   4:04 (184, 39)  
Oct. 13   5 19.15   15 55.3   1.292   1.982   119   16.0      8.6 118.0   3:53 (180, 39)

* 47P/Ashbrook-Jackson
It keeps 16 mag until late October, then fades out. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   5 43.05   36 42.6   2.504   2.939   105   16.1      7.3  41.3   4:04 (189, 18)  
Oct. 13   5 45.17   37 20.8   2.443   2.965   112   16.1      6.0  23.9   3:53 (185, 17)

* 61P/Shajn-Schaldach
It must be bright enough, but no observations reported since 200 Sept. 20. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   6  9.73   16 19.9   2.172   2.549   100   16.3     11.0 104.6   4:04 (200, 36)  
Oct. 13   6 14.32   16  0.2   2.106   2.568   106   16.4      8.7 109.2   3:53 (197, 37)

* C/2001 N2 ( LINEAR )
It will be 14.5 mag in 2002 July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  20 39.35   32  1.2   3.618   4.160   116   16.5     22.5 225.6  19:38 (180, 23)  
Oct. 13  20 31.23   30 10.0   3.648   4.110   110   16.4     21.1 220.8  19:40 (171, 24)

* 2001 OG108
New asteroid with 50-year period. It closes to the earth down to 0.55 AU in 2001 April and reaches to 14 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   0 14.49   21 55.3   1.544   2.512   161   16.5     41.9 279.4  23:11 (180, 33)  
Oct. 13  23 52.96   22 34.8   1.489   2.433   155   16.4     43.9 276.0  22:22 (180, 32)

* C/1999 K5 ( LINEAR )
Appearing at dawn. It had been hardly fading for almost one year after the perihelion passage in 2000 July, and was bright at 15 mag in 2001 May. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   7 34.93  -19 50.1   5.409   5.275    77   16.5      2.3 152.0   4:04 (256, 53)  
Oct. 13   7 35.16  -20  4.5   5.365   5.321    82   16.5      2.0 185.2   3:53 (253, 57)

* C/2000 K2 ( LINEAR )
It did not begin to fade out even after the perihelion passage. It had been at the conjunction for a while, and still keeps the brightness. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   1 57.98    5 19.0   3.459   4.422   162   16.8     10.0 226.8   1:00 (180, 50)  
Oct. 13   1 54.46    4 31.4   3.492   4.476   169   16.9     10.2 228.8   0:29 (180, 50)

* C/2001 K3 ( Skiff )
It will fade out after this and be fainter than 18 mag in December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  19 40.59   16 36.2   3.075   3.460   104   16.8      3.6  81.9  19:33 (164, 37)  
Oct. 13  19 42.76   16 39.9   3.188   3.491    99   16.9      5.4  84.0  19:40 (155, 34)

* 44P/Reinmuth 2
Fading. It will be fainter than 18 mag in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   5 44.63   30  0.3   2.152   2.611   106   16.9      5.4  79.3   4:04 (190, 24)  
Oct. 13   5 46.73   30  6.7   2.098   2.644   112   16.9      2.6  71.6   3:53 (187, 25)

* P/2001 R6 ( LINEAR-Skiff )
New periodic comet. It keeps 17 mag until November, then will fade out. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   1  9.39  -23  7.6   1.190   2.122   151   16.9     11.1 286.4   0:12 (180, 78)  
Oct. 13   1  3.95  -22 36.4   1.196   2.118   149   16.9     12.2 298.4  23:34 (180, 78)

* C/2001 A2 ( LINEAR )
No longer observable visually. Because it was extremely diffused, it is very faint by CCD observations. Fading very rapidly. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  20 11.82   14 30.7   1.791   2.352   111   17.0     11.0 118.9  19:33 (173, 40)  
Oct. 13  20 16.83   13 56.5   1.952   2.443   107   17.5     12.0 111.7  19:40 (164, 40)

* P/2001 Q5 ( LINEAR-NEAT )
New periodic comet. It will keep 17 mag until late October, but then fades out. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   1 56.83   27 31.9   1.295   2.228   152   17.0     11.2 283.4   0:59 (180, 27)  
Oct. 13   1 50.70   27 43.3   1.292   2.249   158   17.1     12.2 273.3   0:26 (180, 27)

* 151P/2001 M1 ( Helin )
Rapidly brightened and reached to 17 mag. Now it is at the peak and it will fade out after this. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  23 53.42   -5 59.1   1.561   2.533   162   17.1      6.6 236.1  22:52 (180, 61)  
Oct. 13  23 51.15   -6 21.4   1.595   2.536   155   17.1      4.9 237.0  22:22 (180, 61)

* C/1999 T1 ( McNaught-Hartley )
Fading gradually. It locates in the northern sky and the northern people can observe it until it disappears. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  17 34.01   53 40.5   4.032   4.042    83   17.1     17.3 134.5  19:33 (155, -7)  
Oct. 13  17 43.83   52 17.4   4.115   4.113    82   17.2     17.4 131.4  19:40 (151, -8)

* P/2001 R1 ( LONEOS )
New periodic comet. It will reach to 16 mag in January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6  21 20.02  -25  6.7   1.272   1.986   121   17.5      5.6 335.5  20:19 (180, 80)  
Oct. 13  21 19.83  -24 25.9   1.294   1.937   114   17.4      6.7  13.8  19:51 (180, 79)

* 2000 EJ37
Asteroid with 10-year period. Fading gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Oct.  6   3 51.53   11  6.7   2.347   3.125   133   17.9      9.2 234.8   2:53 (180, 44)  
Oct. 13   3 47.45   10 28.8   2.333   3.177   141   17.9     11.0 240.2   2:22 (180, 44)

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