Weekly Information about Bright Comets (2003 June 7: North)

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Updated on June 7, 2003
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern 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  7   2  7.41  -13 35.0   1.524   1.263    55    8.2     56.0 147.9   3:01 (280, -9)  
June 14   2 21.94  -19 14.3   1.503   1.363    62    8.5     57.9 149.0   2:58 (286,-10)  

* 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  7   4 29.95  -15 16.9   3.118   2.410    38   10.8     17.3  89.9   3:01 (261,-39)  
June 14   4 38.02  -15 20.3   3.202   2.516    40   11.0     16.1  93.7   2:58 (264,-36)  

* 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  7  15  6.42  -21 31.1   1.416   2.371   154   12.1      6.2 281.3  22:04 (  0, 33)  
June 14  15  4.01  -21 24.0   1.474   2.390   146   12.1      3.6 282.8  21:34 (  0, 34)  

* 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  7   5 35.83   14 32.8   3.796   2.811    12   12.2      4.0  33.8  20:56 (124,-19)  
June 14   5 36.94   14 55.0   3.804   2.804     8   12.2      3.9  37.9  21:01 (130,-23)  

* 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  7  19  0.21  -29 37.2   1.509   2.451   151   12.4      9.0 220.3   2:01 (  0, 25)  
June 14  18 56.50  -30 24.8   1.480   2.455   158   12.3     10.4 229.4   1:30 (  0, 25)  

* 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  7  11 41.09   30 23.0   1.748   1.979    87   12.9     38.9 220.6  20:56 ( 90, 61)  
June 14  11 28.89   26 52.3   1.779   1.890    80   12.8     36.8 214.2  21:01 ( 91, 50)  

* 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  7  11 21.67    5 59.8   2.370   2.627    93   12.9     20.6 143.2  20:56 ( 60, 44)  
June 14  11 27.71    4  6.7   2.504   2.676    88   13.1     20.7 139.8  21:01 ( 64, 38)  

* 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  7  22 49.69   -3 58.0   5.602   5.755    93   13.4      4.0  49.8   3:01 (305, 34)  
June 14  22 50.89   -3 41.1   5.492   5.754    99   13.4      3.0  42.6   2:58 (311, 38)  

* 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  7   3 10.33  -33  9.8   5.027   4.630    61   13.7     12.6 109.6   3:01 (291,-31)  
June 14   3 17.00  -33 43.1   4.897   4.559    64   13.5     13.1 114.0   2:58 (293,-28)  

* 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  7   7  0.98   22  0.9   2.752   1.919    28   14.1     33.9  94.1  20:56 (116,  2)  
June 14   7 18.23   21 39.5   2.748   1.884    25   14.0     35.0  95.8  21:01 (118, -1)  

* 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  7  18 57.05   53  3.6   5.217   5.485    99   14.4     10.4 330.1   1:58 (180, 72)  
June 14  18 52.70   54  2.5   5.224   5.502   100   14.4      9.7 323.1   1:26 (180, 71)  

* C/2002 J4 ( NEAT )


It will be observable at 14.5 mag for a long time from spring to autumn in the Southern Hemisphere. In the Northern Hemisphere, it will be unobservable soon.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  7  18 33.18  -49  4.1   2.894   3.790   147   14.6     15.7 197.2   1:34 (  0,  6)  
June 14  18 28.99  -50 43.8   2.857   3.771   150   14.5     15.1 206.6   1:03 (  0,  4)  

* 53P/Van Biesbroeck


It will be 14 mag from spring to 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  7  15 50.88   -9 22.6   1.645   2.618   159   14.8      8.2 273.7  22:48 (  0, 46)  
June 14  15 47.31   -9 22.2   1.654   2.597   152   14.7      6.8 266.5  22:17 (  0, 46)  

* 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  7   4 54.27   28  6.4   5.635   4.625     5   14.9      8.0  78.8   3:01 (221,-13)  
June 14   4 58.46   28 17.5   5.554   4.551     8   14.8      8.2  78.4   2:58 (225,-10)  

* 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  7   5  6.92   17 24.5   3.043   2.035     5   14.9     35.3  83.4  20:56 (131,-21)  
June 14   5 24.14   17 49.1   3.036   2.028     5   14.8     35.4  85.0   2:58 (227,-22)  

* 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  7  16 58.40   24 18.4   2.849   3.619   133   15.2     32.0 270.5   0:00 (  0, 79)  
June 14  16 41.82   24 10.4   2.810   3.563   131   15.1     32.7 265.7  23:10 (  0, 79)  

* 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  7   1 42.47    6 52.2   2.812   2.289    49   15.1     24.7  71.9   3:01 (267,  8)  
June 14   1 53.23    7 43.3   2.786   2.331    53   15.2     23.3  72.7   2:58 (268, 11)  

* 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  7   5 35.81   20 28.2   3.515   2.517     8   15.4      4.2 150.4  20:56 (128,-14)  
June 14   5 36.89   20  2.2   3.519   2.507     3   15.4      4.4 149.3  21:01 (134,-19)  

* C/2003 K2


New 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 still keeps 15 mag, howerver, 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  7   9 27.10   24 44.5   1.445   1.300    60   15.5     70.0 107.8  20:56 ( 99, 32)  
June 14   9 58.67   22 10.0   1.562   1.407    61   16.2     61.9 110.8  21:01 ( 97, 30)  

* 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  7  17 17.96    7 35.5   4.107   5.007   149   15.6     13.2 313.7   0:19 (  0, 63)  
June 14  17 13.47    8 35.8   4.128   5.018   147   15.6     12.5 310.6  23:43 (  0, 64)  

* 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  7  19 42.11   -3 30.4   2.119   2.935   136   15.8     19.5 338.8   2:43 (  0, 51)  
June 14  19 38.34   -1 25.0   2.083   2.946   141   15.8     19.8 332.9   2:12 (  0, 54)  

* 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  7  13  7.35   35 53.9   4.746   5.021    99   16.1     13.6 205.3  20:56 ( 98, 80)  
June 14  13  4.48   34 27.2   4.871   5.063    95   16.2     13.2 199.0  21:01 ( 94, 72)  

* C/2002 R3 ( LONEOS )


Appearing at dawn. It will be observable at around 16 mag in good condition. No observations have been reported since Feb. 3.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  7   1 11.86   19 55.7   4.403   3.870    52   16.3      4.8 328.3   3:01 (260, 21)  
June 14   1 10.26   20 23.9   4.289   3.870    59   16.3      5.6 315.1   2:58 (263, 27)  

* 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  7  11 49.12   -6 46.9   1.094   1.665   104   16.5     15.2 169.9  20:56 ( 42, 38)  
June 14  11 51.39   -8 36.6   1.104   1.611    98   16.3     17.8 157.1  21:01 ( 49, 32)  

* 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  7  12 33.70   32 11.3   6.433   6.621    96   16.4      8.0 189.3  20:56 ( 87, 72)  
June 14  12 33.25   31 15.5   6.559   6.655    91   16.5      8.1 182.4  21:01 ( 90, 65)  

* 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  7  21 11.28   29 54.7   5.820   6.074    99   16.7      8.8 313.1   3:01 (284, 74)  
June 14  21  7.42   30 35.4   5.673   6.011   104   16.6      9.6 305.6   2:58 (293, 80)  

* 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  7  18 15.80   38 22.4   5.254   5.776   116   16.7     17.1 295.7   1:17 (180, 87)  
June 14  18  6.39   39  8.9   5.237   5.769   116   16.7     17.0 290.3   0:40 (180, 86)  

* 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  7  16 14.46   49 39.7   3.596   4.011   106   16.8     16.2 225.0  23:11 (180, 75)  
June 14  16  6.63   48 12.7   3.604   4.010   106   16.8     17.1 218.3  22:36 (180, 77)  

* 30P/Reinmuth 1


It became brighter than expected after the perihelion passage, and reached to 13 mag in March. Then it faded rapidly and already reached to 17 mag now. It 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  7  11 50.56   11 19.1   1.985   2.343    97   16.9     18.9 122.2  20:56 ( 58, 53)  
June 14  11 58.38   10  7.7   2.095   2.376    93   17.1     19.8 121.4  21:01 ( 63, 47)  

* 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  7  11  9.84   26 45.1   0.697   1.153    82   17.3     53.4 159.8  20:56 ( 88, 53)  
June 14  11 20.03   20 36.0   0.673   1.121    80   17.1     59.4 158.7  21:01 ( 83, 46)  

* 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  7  20 20.12  -23 27.0   2.448   3.235   133   17.3      4.1 201.8   3:01 (355, 31)  
June 14  20 18.84  -23 55.3   2.394   3.246   140   17.3      5.5 219.2   2:52 (  0, 31)  

* C/2003 H2 ( LINEAR )


Although it is 17.5 mag in June, it 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  7  17  6.26    5 49.3   1.245   2.190   151   17.4     54.6 224.7   0:08 (  0, 61)  
June 14  16 48.31    1  7.1   1.242   2.200   153   17.4     56.2 222.5  23:17 (  0, 56)  

* 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  7  19 10.03  -15 11.4  11.281  12.154   148   17.4      3.0 270.3   2:11 (  0, 40)  
June 14  19  8.52  -15 11.6  11.241  12.168   154   17.4      3.3 268.5   1:42 (  0, 40)  

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