Weekly Information about Bright Comets (2001 June 30: South)

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 Updated on June 30, 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)  
June 30   0 52.16   -6 41.7   0.244   1.041    88    4.6    204.4 301.3   5:38 (202, 60)  
July  7  23 33.48    5 18.5   0.261   1.128   108    5.1    181.4 300.6   4:36 (180, 50)

* 19P/Borrelly
It locates high in the Southern Hemisphere. In the Northern Hemisphere, it appears at dawn at 10 mag in late July, then reaches to 8 mag in autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 30   3 31.92   -1 54.7   2.040   1.614    51   11.2     44.2  67.6   5:38 (246, 33)  
July  7   3 51.19    0  3.8   1.977   1.574    52   10.9     45.0  67.9   5:38 (243, 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)  
June 30   1  1.16  -16 25.4   3.056   3.235    90   12.4     20.9 186.4   5:38 (215, 68)  
July  7   0 59.45  -18 59.2   2.948   3.256    98   12.3     23.7 191.4   5:38 (198, 73)

* 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)  
June 30   6 48.13   21 30.0   2.445   1.432     3   12.8     49.5  96.3  18:29 (106,-15)  
July  7   7 12.66   20 44.2   2.450   1.435     2   12.9     49.4  98.6  18:31 (105,-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)  
June 30  19  1.34  -28 26.4   4.919   5.928   172   13.3      6.9 268.9   0:30 (180, 83)  
July  7  18 57.66  -28 26.7   4.914   5.926   173   13.3      6.9 270.4  23:54 (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)  
June 30   0 49.37  -72  5.3   2.647   3.157   110   13.6      5.2 133.9   5:38 (355, 53)  
July  7   0 53.50  -72 31.9   2.630   3.160   112   13.6      4.2 158.2   5:38 (358, 52)

* 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)  
June 30  10 31.41   19  2.5   1.740   1.420    54   14.1     55.0 114.3  18:29 (140, 25)  
July  7  10 55.34   16 21.3   1.805   1.467    54   14.8     53.0 115.8  18:31 (137, 27)

* 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)  
June 30   2 41.55    8 32.3   1.875   1.588    57   14.4     41.3  76.3   5:38 (227, 34)  
July  7   3  0.29    9 36.8   1.849   1.600    59   14.5     40.1  77.5   5:38 (224, 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)  
June 30  13  5.89   19 33.0   3.575   3.698    88   14.4     17.4 208.6  18:31 (180, 36)  
July  7  13  2.39   17 48.1   3.727   3.736    82   14.6     15.9 202.0  18:31 (171, 37)

* 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. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 30  13  1.21  -42 23.5   1.650   2.213   109   14.5     49.8 316.9  18:29 (  4, 83)  
July  7  12 43.48  -38 24.4   1.783   2.199    99   14.7     39.9 322.2  18:31 ( 69, 79)

* C/2001 K5 ( LINEAR )
New comet. 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)  
June 30  15  8.26  -19 25.1   5.523   6.245   131   14.7      7.9 329.8  20:33 (180, 74)  
July  7  15  6.55  -18 38.6   5.586   6.218   124   14.7      7.1 335.5  20:04 (180, 74)

* C/1999 T1 ( McNaught-Hartley )
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)  
June 30  16 43.64   74 57.3   3.006   3.005    80   14.7     10.8 214.1  22:08 (180,-20)  
July  7  16 34.64   73 48.9   3.082   3.082    80   14.8     11.4 202.4  21:31 (180,-19)

* 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)  
June 30   5 42.05  -73 28.1  13.603  13.765    97   15.1      4.3 109.8   5:38 (340, 35)  
July  7   5 48.60  -73 39.5  13.647  13.809    97   15.1      4.3 114.9   5:38 (340, 37)

* 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)  
June 30   3 13.12   46 55.9   3.993   3.378    46   15.3     14.4  77.5   5:38 (209, -2)  
July  7   3 22.73   47 17.6   3.846   3.293    50   15.1     14.3  77.3   5:38 (207,  0)

* 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)  
June 30   5 30.32   60 38.3   5.751   5.004    39   15.3     16.2  70.6   5:38 (212,-25)  
July  7   5 45.06   61 15.0   5.716   4.994    41   15.3     16.3  71.1   5:38 (211,-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)  
June 30   6 42.43  -20 37.0   5.328   4.648    43   15.3     12.8  67.1  18:29 ( 70,  8)  
July  7   6 48.21  -20  5.2   5.386   4.692    42   15.4     12.2  70.2   5:38 (288,  9)

* C/2000 SV74 ( LINEAR )
Appearing at dawn. No observations reported since 2001 Jan. 15. 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)  
June 30   2  9.62   33 33.8   4.918   4.473    58   15.5     13.8  23.7   5:38 (206, 16)  
July  7   2 12.52   35  3.7   4.789   4.436    63   15.4     13.9  19.8   5:38 (200, 17)

* 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)  
June 30   2 54.33    9  4.0   2.545   2.127    54   15.4     21.1  73.9   5:38 (229, 31)  
July  7   3  3.55    9 42.0   2.531   2.188    58   15.6     19.3  74.9   5:38 (225, 34)

* 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)  
June 30   3 39.53   26 18.5   3.299   2.603    40   15.5     24.9  69.5   5:38 (226, 11)  
July  7   3 51.56   27 17.4   3.262   2.625    43   15.5     24.1  70.1   5:38 (223, 13)

* 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)  
June 30  15  5.56    6 44.7   7.106   7.673   120   15.6      7.8 227.6  20:31 (180, 48)  
July  7  15  3.05    6  6.7   7.215   7.690   114   15.7      7.4 221.4  20:01 (180, 49)

* 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)  
June 30   2 11.64   12 28.5   2.060   1.843    63   15.7     35.8  74.6   5:38 (217, 35)  
July  7   2 28.12   13 31.6   2.003   1.838    65   15.6     35.3  75.9   5:38 (213, 35)

* C/2001 K3 ( Skiff )
New comet. 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)  
June 30  20 42.73    5  9.3   2.302   3.133   138   15.8     21.2 323.5   2:11 (180, 50)  
July  7  20 36.44    7  5.0   2.278   3.148   142   15.8     21.3 318.5   1:37 (180, 48)

* 74P/Smirnova-Chernykh
It is observable in the evening sky until July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 30  11 47.00    7 53.7   3.706   3.592    75   16.0     12.8 121.3  18:29 (154, 44)  
July  7  11 52.36    7  6.2   3.804   3.596    70   16.0     13.8 120.3  18:31 (146, 42)

* 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)  
June 30   1 45.98   11 40.1   3.906   3.675    69   16.4     12.1  87.4   5:38 (210, 38)  
July  7   1 51.41   11 41.7   3.860   3.727    74   16.5     10.8  90.5   5:38 (204, 40)

* 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)  
June 30  21 46.30   -3 29.4   5.395   6.099   130   16.5      8.3 293.7   3:14 (180, 58)  
July  7  21 42.52   -3  7.4   5.360   6.144   137   16.5      9.0 289.1   2:43 (180, 58)

* 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)  
June 30  17 39.35  -16 57.0   9.813  10.799   165   16.7      3.9 271.7  23:04 (180, 72)  
July  7  17 37.52  -16 56.5   9.859  10.812   158   16.7      3.6 270.6  22:35 (180, 72)

* P/2001 K1 ( NEAT )
New periodic comet. It will fade out after this and be fainter than 18 mag in August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 30  15  6.82   -8 24.6   2.140   2.878   127   17.2      7.5 189.6  20:32 (180, 63)  
July  7  15  6.78   -9 17.1   2.234   2.899   121   17.4      7.7 172.1  20:04 (180, 64)

* C/2000 K1 ( LINEAR )
Fading gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 30  15 16.30   38 50.5   7.060   7.345   102   17.3      7.3 263.2  20:41 (180, 16)  
July  7  15 12.26   38 42.0   7.158   7.369    98   17.3      6.5 256.4  20:10 (180, 16)

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