Weekly Information about Bright Comets (2001 July 7: South)

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Updated on July 8, 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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* C/2001 A2 ( LINEAR )


It has brightened suddenly on around June 10 and reached to 3.3 mag. But it faded to 4.5 mag until June 19. It will fade out rapidly after this. It will be fainter than 8 mag in August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  23 33.48    5 18.5   0.261   1.128   108    5.1    181.4 300.6   4:36 (180, 50)  
July 14  22 28.33   13 57.9   0.311   1.219   124    5.8    130.5 295.5   3:03 (180, 41)  

* 19P/Borrelly


It locates high in the Southern Hemisphere. Appearing at dawn also in the Northern Hemisphere. It reaches to 8 mag in autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3 51.19    0  3.8   1.977   1.574    52   10.9     45.0  67.9   5:38 (243, 33)  
July 14   4 10.87    2  2.9   1.916   1.536    52   10.6     45.9  68.2   5:36 (240, 33)  

* C/1999 Y1 ( LINEAR )


Appearing at dawn. However, it never locates high and will not be observable after August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   0 59.45  -18 59.2   2.948   3.256    98   12.3     23.7 191.4   5:38 (198, 73)  
July 14   0 56.48  -21 49.9   2.848   3.278   106   12.3     26.6 195.9   5:29 (180, 77)  

* 144P/2000 O2 ( Kushida )


Not observable until December when it becomes fainter than 17.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   7 12.66   20 44.2   2.450   1.435     2   12.9     49.4  98.6  18:31 (105,-16)  
July 14   7 36.81   19 45.5   2.459   1.443     2   12.9     49.1 100.7  18:35 (103,-16)  

* 29P/Schwassmann-Wachmann 1


It bursted out on May 17 and reached to 12 mag. Although it faded after this, it bursted out again on June 12.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  18 57.66  -28 26.7   4.914   5.926   173   13.3      6.9 270.4  23:54 (180, 83)  
July 14  18 54.00  -28 25.7   4.923   5.924   168   13.3      6.8 272.1  23:23 (180, 83)  

* 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)  
July  7   0 53.50  -72 31.9   2.630   3.160   112   13.6      4.2 158.2   5:38 (358, 52)  
July 14   0 54.16  -72 59.9   2.618   3.165   113   13.6      4.1 190.4   5:27 (  0, 52)  

* 51P/Harrington


Not yet observed in this return. Appearing at dawn. It will fade gradually after this. It will be close down to 3 arcmin to 73P/Schwassmann-Wachmann 3 on July 9.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3  0.29    9 36.8   1.849   1.600    59   14.5     40.1  77.5   5:38 (224, 34)  
July 14   3 18.58   10 33.5   1.825   1.616    61   14.6     38.7  78.8   5:36 (221, 34)  

* C/1999 T2 ( LINEAR )


It was much brighter visually, around 12 mag. However, it will fade out rapidly after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  13  2.39   17 48.1   3.727   3.736    82   14.6     15.9 202.0  18:31 (171, 37)  
July 14  13  0.00   16  6.8   3.879   3.775    76   14.7     14.7 195.3  18:35 (161, 37)  

* C/2001 K5 ( LINEAR )


It reaches to 13.5 mag in 2002 summer, and keeps observable for a long while.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  15  6.55  -18 38.6   5.586   6.218   124   14.7      7.1 335.5  20:04 (180, 74)  
July 14  15  5.38  -17 55.1   5.657   6.190   117   14.7      6.3 342.8  19:35 (180, 73)  

* C/2000 OF8 ( Spacewatch )


In the Northern Hemisphere, it is not observable, will appear at dawn in November at 16.5 mag and fade. In the Southern Hemisphere, it locates high. It was only 7 arcmin from SN 2001cz (14.7 mag) on July 4.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  12 43.48  -38 24.4   1.783   2.199    99   14.7     39.9 322.2  18:31 ( 69, 79)  
July 14  12 31.48  -35  1.4   1.928   2.188    90   14.8     31.5 326.9  18:35 ( 84, 71)  

* 24P/Schaumasse


Diffused and hard to see. It must be fading rapidly now.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  10 55.34   16 21.3   1.805   1.467    54   14.8     53.0 115.8  18:31 (137, 27)  
July 14  11 17.81   13 38.8   1.877   1.517    53   15.5     51.0 116.9  18:35 (134, 28)  

* C/2000 SV74 ( LINEAR )


Appearing at dawn. It will brighten and locate higher after this. It will be observable at 14 mag for one year from 2001 September.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   2 12.52   35  3.7   4.789   4.436    63   14.9     13.9  19.8   5:38 (200, 17)  
July 14   2 14.95   36 36.8   4.657   4.400    69   14.8     14.0  15.4   5:36 (195, 17)  

* C/1999 T1 ( McNaught-Hartley )


It keeps 13 mag visually still now. Fading out 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)  
July  7  16 34.64   73 48.9   3.082   3.082    80   14.8     11.4 202.4  21:31 (180,-19)  
July 14  16 29.06   72 31.0   3.156   3.158    80   15.0     12.0 192.5  20:59 (180,-17)  

* C/2000 WM1 ( LINEAR )


Appearing at dawn. It reaches to 4 mag in 2002 January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3 22.73   47 17.6   3.846   3.293    50   15.1     14.3  77.3   5:38 (207,  0)  
July 14   3 32.32   47 39.6   3.692   3.207    54   14.9     14.2  77.1   5:36 (204,  1)  

* 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)  
July  7   5 48.60  -73 39.5  13.647  13.809    97   15.1      4.3 114.9   5:38 (340, 37)  
July 14   5 55.02  -73 53.4  13.692  13.852    96   15.1      4.3 119.9   5:36 (340, 38)  

* C/1999 U4 ( Catalina-Skiff )


Getting higher in the morning sky. 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)  
July  7   5 45.06   61 15.0   5.716   4.994    41   15.3     16.3  71.1   5:38 (211,-24)  
July 14   6  0.22   61 50.9   5.677   4.985    43   15.2     16.3  71.7   5:36 (210,-24)  

* C/1999 K5 ( LINEAR )


It hardly faded out for about half of a year since the perihelion passage in 2000 June.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   6 48.21  -20  5.2   5.386   4.692    42   15.4     12.2  70.2   5:38 (288,  9)  
July 14   6 53.80  -19 39.2   5.435   4.735    42   15.4     11.6  73.4   5:36 (285, 13)  

* 47P/Ashbrook-Jackson


Appearing at dawn. No observations reported since 2001 Feb. 3.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3 51.56   27 17.4   3.262   2.625    43   15.5     24.1  70.1   5:38 (223, 13)  
July 14   4  3.37   28 13.0   3.222   2.647    47   15.6     23.4  70.6   5:36 (220, 14)  

* 16P/Brooks 2


Not yet observed in this return. It appears at dawn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   2 28.12   13 31.6   2.003   1.838    65   15.6     35.3  75.9   5:38 (213, 35)  
July 14   2 44.49   14 28.3   1.946   1.836    68   15.5     34.7  77.3   5:36 (210, 35)  

* 73P/Schwassmann-Wachmann 3


Appearing at dawn. No observations reported since 2001 Jan. 4. It will be close down to 3 arcmin to 51P/Harrington on July 9.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3  3.55    9 42.0   2.531   2.188    58   15.6     19.3  74.9   5:38 (225, 34)  
July 14   3 11.99   10 14.6   2.511   2.249    63   15.8     17.5  75.9   5:36 (220, 36)  

* C/1999 J2 ( Skiff )


It is observable as 15.5 mag until autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  15  3.05    6  6.7   7.215   7.690   114   15.7      7.4 221.4  20:01 (180, 49)  
July 14  15  0.97    5 27.1   7.331   7.707   108   15.7      7.0 214.5  19:31 (180, 50)  

* C/2001 K3 ( Skiff )


It is observable at 16 mag in good condition until late August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  20 36.44    7  5.0   2.278   3.148   142   15.8     21.3 318.5   1:37 (180, 48)  
July 14  20 29.50    8 52.2   2.267   3.165   146   15.8     21.1 313.9   1:03 (180, 46)  

* 44P/Reinmuth 2


Appearing at dawn. No observations reported since Aug. 23, 2000.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   3 39.68   25  5.5   2.772   2.203    46   16.4     27.9  75.3   5:38 (222, 16)  
July 14   3 53.42   25 52.0   2.742   2.232    50   16.4     26.9  76.4   5:36 (219, 17)  

* C/1997 BA6 ( Spacewatch )


Appearing at dawn. It will fade out gradually after this. It is now a bit brighter than this ephemeris.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  21 42.52   -3  7.4   5.360   6.144   137   16.5      9.0 289.1   2:43 (180, 58)  
July 14  21 38.35   -2 48.1   5.336   6.190   144   16.5      9.6 285.4   2:11 (180, 58)  

* C/2000 K2 ( LINEAR )


Appearing at dawn. No observations reported since 2001 Jan. 15. It will fade out gradually then it will be fainter than 18 mag in November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7   1 51.41   11 41.7   3.860   3.727    74   16.5     10.8  90.5   5:38 (204, 40)  
July 14   1 56.23   11 38.8   3.811   3.779    80   16.6      9.4  94.5   5:36 (197, 42)  

* 95P/(2060) Chiron


No observations reported since May 1, 2000.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  17 37.52  -16 56.5   9.859  10.812   158   16.7      3.6 270.6  22:35 (180, 72)  
July 14  17 35.83  -16 56.5   9.918  10.826   151   16.7      3.3 269.4  22:05 (180, 72)  

* C/2000 K1 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  7  15 12.26   38 42.0   7.158   7.369    98   17.3      6.5 256.4  20:10 (180, 16)  
July 14  15  8.78   38 29.4   7.259   7.394    93   17.4      5.7 248.9  19:39 (180, 17)  

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