Weekly Information about Bright Comets (2003 June 21: South)

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 Updated on June 24, 2003
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere.

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* C/2002 Y1 ( Juels-Holvorcem )
In the Northern Hemisphere, it will never be observable again. It has been fading slowly since the perihelion passage. It is still as bright as 8 mag in the Southern Hemisphere. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   2 36.98  -25  8.0   1.490   1.464    68    8.7     59.4 150.1   5:36 (269, 49)  
June 28   2 52.58  -31 12.5   1.488   1.564    74    8.9     60.1 151.2   5:38 (276, 54)

* C/2002 V1 ( NEAT )
Getting higher in the morning sky in the Southern Hemisphere. It was 10 mag still in early May, but very diffused. Recent brightness is uncertain. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   4 45.53  -15 31.0   3.276   2.620    42   11.1     15.1  97.8   5:36 (277, 18)  
June 28   4 52.48  -15 48.8   3.340   2.722    45   11.3     14.1 102.5   5:38 (274, 23)

* C/2001 HT50 ( LINEAR-NEAT )
It will be observable in good condition at 11-12 mag in autumn again. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   5 38.09   15 15.6   3.796   2.798     9   12.2      3.7  40.0   5:36 (258,-10)  
June 28   5 39.20   15 34.5   3.773   2.794    13   12.1      3.4  40.0   5:38 (254, -5)

* 116P/Wild 4
Although it passed the perihelion in January, it became about 1.5 or 2 mag brighter than expected after that. Now it is observed brighter than 12 mag visually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  15  2.92  -21 20.2   1.542   2.410   139   12.2      0.9 288.4  21:05 (180, 76)  
June 28  15  3.15  -21 20.1   1.617   2.431   133   12.3      1.8  99.0  20:38 (180, 76)

* 65P/Gunn
It is observable at 12.5 mag for long time until August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  18 51.78  -31 10.7   1.462   2.459   165   12.3     11.3 236.0   0:58 (180, 86)  
June 28  18 46.37  -31 52.9   1.455   2.463   170   12.3     11.7 241.0   0:25 (180, 87)

* C/2002 O7 ( LINEAR )
Getting brighter slowly. It will be 10 mag in autumn. In the Northern Hemisphere, it will observable only until July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  11 19.35   23 18.2   1.813   1.800    72   12.7     34.8 208.3  18:26 (163, 30)  
June 28  11 12.02   19 44.1   1.849   1.710    66   12.6     33.1 202.8  18:28 (152, 30)

* C/2001 RX14 ( LINEAR )
Getting lower rapidly while getting fainter. It will be unobservable in August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  11 34.15    2 18.1   2.640   2.727    83   13.2     20.8 136.9  18:26 (161, 51)  
June 28  11 40.95    0 33.7   2.777   2.779    79   13.4     20.9 134.5  18:28 (151, 51)

* C/2001 Q4 ( NEAT )
It will reach to 1 mag in 2004 spring. In the Northern Hemisphere, it is not observable until that time. It was observed as bright as expected in late May. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   3 23.75  -34 24.4   4.764   4.488    68   13.4     13.6 118.6   5:36 (287, 43)  
June 28   3 30.54  -35 14.3   4.629   4.417    71   13.3     14.2 123.2   5:38 (286, 48)

* 29P/Schwassmann-Wachmann 1
It was in outburst and observed around 13.5 mag in May. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  22 51.59   -3 27.0   5.385   5.753   106   13.4      2.1  28.1   4:57 (180, 58)  
June 28  22 51.79   -3 15.9   5.281   5.752   112   13.3      1.4 354.6   4:29 (180, 58)

* 81P/Wild 2
It will appear at dawn again in 2004 January at 14 mag, then fade out gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   7 35.90   21 10.2   2.742   1.850    23   13.9     36.0  97.5  18:26 (118,  2)  
June 28   7 53.94   20 32.7   2.733   1.818    20   13.8     37.0  99.2  18:28 (116,  0)

* C/2001 K5 ( LINEAR )
It is observable in good condition at 14-15 mag until autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  18 47.82   54 52.0   5.236   5.520   100   14.4      9.0 315.5   0:54 (180,  0)  
June 28  18 42.56   55 31.7   5.252   5.538   101   14.5      8.2 307.3   0:21 (180, -1)

* C/2002 J4 ( NEAT )
It will be observable at 14.5 mag for a long time until autumn in the Southern Hemisphere. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  18 23.33  -52 12.9   2.834   3.753   150   14.5     14.5 214.4   0:30 (  0, 73)  
June 28  18 16.66  -53 31.1   2.824   3.738   149   14.5     13.7 220.6  23:51 (  0, 71)

* C/2002 T7 ( LINEAR )
It is expected to be 1 mag in the southern sky in 2004 spring. It will appear at dawn again in July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   5  2.73   28 29.3   5.461   4.477    13   14.7      8.3  78.0   5:36 (243,-11)  
June 28   5  7.03   28 41.6   5.354   4.402    18   14.6      8.3  77.4   5:38 (239, -6)

* 118P/Sheomaker-Levy 4
It will appear at dawn in September at 15 mag, then fade out gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   5 41.50   18  6.7   3.028   2.021     6   14.7     35.5  86.6   5:36 (256,-12)  
June 28   5 58.95   18 17.3   3.018   2.016     7   14.7     35.6  88.3   5:38 (255,-10)

* 53P/Van Biesbroeck
It will be 14 mag until summer. It was reported brighter than 14 mag visually these days. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  15 44.52   -9 28.5   1.674   2.577   145   14.7      5.1 254.3  21:47 (180, 64)  
June 28  15 42.69   -9 41.6   1.704   2.558   138   14.7      3.6 229.1  21:18 (180, 65)

* C/2003 H1 ( LINEAR )
It will be as bright as 11.5 mag in 2004 spring. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  16 25.20   23 43.0   2.791   3.508   127   15.0     32.7 260.9  22:26 (180, 31)  
June 28  16  9.05   22 57.2   2.793   3.454   123   14.9     32.0 256.0  21:43 (180, 32)

* C/2002 X1 ( LINEAR )
It will appear at dawn again in late July, then it will keep 14-15 mag until the end of 2003. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   5 38.00   19 35.4   3.507   2.498     5   15.4      4.5 150.4   5:36 (255,-12)  
June 28   5 39.06   19  7.5   3.479   2.492    11   15.4      4.6 153.9   5:38 (251, -7)

* 22P/Kopff
Appearing at dawn. No observations have been reported since 2002 September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   2  3.44    8 29.4   2.757   2.373    57   15.4     21.9  73.5   5:36 (227, 34)  
June 28   2 13.07    9 10.3   2.723   2.415    61   15.5     20.5  74.4   5:38 (222, 36)

* C/2003 G1 ( LINEAR )
It will be observable in good condition at 16 mag until autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  17  9.07    9 29.0   4.162   5.029   145   15.6     11.6 307.8  23:11 (180, 45)  
June 28  17  4.87   10 14.9   4.209   5.041   141   15.6     10.5 305.2  22:39 (180, 45)

* C/2003 H3 ( NEAT )
It keeps 16 mag until August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  19 33.73    0 35.7   2.060   2.959   146   15.8     19.9 327.6   1:40 (180, 54)  
June 28  19 28.47    2 29.2   2.050   2.974   150   15.8     19.5 322.9   1:07 (180, 53)

* 66P/du Toit
It will not be observable around the perihelion passage. Before the perihelion passage, it is observable until July when it reaches to 15 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  11 55.65  -10 36.4   1.113   1.559    94   16.1     21.0 148.3  18:26 (164, 65)  
June 28  12  1.84  -12 46.2   1.121   1.509    89   15.9     24.4 142.2  18:28 (150, 65)

* C/2002 R3 ( LONEOS )
It will be observable at around 16 mag in good condition. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21   1  7.89   20 50.9   4.168   3.870    66   16.2      6.7 303.9   5:36 (206, 30)  
June 28   1  4.63   21 16.3   4.041   3.872    73   16.2      8.2 294.9   5:38 (198, 32)

* C/2003 K4 ( LINEAR )
New comet. It will be 7 mag in the southern sky from autumn to winter in 2004. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  21  2.77   31 12.5   5.481   5.898   109   16.4     10.5 298.4   3:08 (180, 24)  
June 28  20 57.35   31 44.8   5.345   5.834   114   16.3     11.4 291.8   2:36 (180, 23)

* C/2000 SV74 ( LINEAR )
Although it has been bright and observable for a long time, it will be fainter than 17 mag and getting lower in the evening sky in August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  13  2.48   32 59.7   5.000   5.105    90   16.3     12.9 192.8  19:05 (180, 22)  
June 28  13  1.28   31 32.0   5.133   5.147    85   16.4     12.6 186.8  18:37 (180, 24)

* P/2003 K2 ( Christensen )
New periodic comet. It was captured by SWAN images which show that the comet was as bright as 10 mag in the evening low sky in April. It will fade rapidly after this and will be fainter than 18 mag in July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  10 25.91   19 34.3   1.594   1.436    62   16.4     55.4 113.1  18:26 (149, 29)  
June 28  10 49.51   17  4.5   1.721   1.529    61   16.9     49.9 114.6  18:28 (146, 31)

* C/1999 U4 ( Catalina-Skiff )
It keeps 17 mag until 2004 spring. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  12 33.32   30 18.4   6.687   6.689    85   16.5      8.2 175.9  18:36 (180, 25)  
June 28  12 33.88   29 20.6   6.816   6.723    80   16.6      8.4 170.0  18:28 (176, 26)

* C/2002 J5 ( LINEAR )
It keeps 17 mag until 2004 summer. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  17 56.62   39 44.7   5.233   5.763   116   16.7     16.8 285.0   0:03 (180, 15)  
June 28  17 46.72   40  9.1   5.241   5.758   115   16.7     16.4 279.5  23:20 (180, 15)

* P/2003 KV2 ( LINEAR )
New periodic comet. It only becomes 16.7 mag at best in July, then it will fade out soon. In the Northern Hemisphere, it goes to the southern sky and becomes unobservable soon. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  11 31.25   13 50.6   0.649   1.095    78   17.0     65.2 158.0  18:26 (164, 40)  
June 28  11 43.45    6 31.1   0.630   1.077    77   16.8     70.4 157.4  18:28 (155, 46)

* C/2003 F1 ( LINEAR )
It will keep 17.5 mag until summer. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  15 59.72   46 32.6   3.620   4.008   105   16.8     17.8 212.0  22:02 (180,  9)  
June 28  15 53.86   44 41.1   3.644   4.008   103   16.8     18.5 206.0  21:28 (180, 10)

* 152P/2001 Y1 ( Helin-Lawrence )
Appearing at dawn. It keeps 17.5 mag until August. However, it locates low, around 27-30 deg high, in the Northern Hemisphere. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  20 16.58  -24 26.5   2.349   3.256   148   17.3      7.0 228.9   2:22 (180, 79)  
June 28  20 13.45  -24 59.7   2.315   3.267   155   17.3      8.4 234.9   1:52 (180, 80)

* 95P/(2060) Chiron
It will be observable around 17.5 mag until autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 21  19  6.88  -15 12.5  11.213  12.181   161   17.4      3.5 267.1   1:13 (180, 70)  
June 28  19  5.16  -15 14.0  11.199  12.194   167   17.4      3.6 265.9   0:44 (180, 70)

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