Weekly Information about Bright Comets (2003 July 5: South)

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 Updated on July 7, 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 had been fading slowly since the perihelion passage, and it was observed as bright as 8 mag still in late May. Recent brightness is uncertain. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5   3  8.77  -37 21.8   1.501   1.664    80    9.2     59.8 152.1   5:38 (286, 58)  
July 12   3 25.63  -43 27.9   1.529   1.763    85    9.4     58.2 152.8   5:37 (298, 60)

* 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)  
July  5   4 58.87  -16 13.5   3.396   2.823    48   11.4     13.2 107.7   5:38 (271, 27)  
July 12   5  4.68  -16 44.8   3.443   2.921    51   11.6     12.3 113.6   5:37 (269, 32)

* 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)  
July  5   5 40.17   15 52.0   3.735   2.792    18   12.1      3.0  36.7   5:38 (250,  0)  
July 12   5 40.91   16  8.2   3.682   2.792    24   12.1      2.5  28.6   5:37 (246,  5)

* 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)  
July  5  11  6.50   16 11.5   1.884   1.621    59   12.4     31.8 197.9  18:30 (142, 30)  
July 12  11  2.43   12 41.0   1.914   1.533    52   12.3     30.8 193.6  18:33 (132, 28)

* 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)  
July  5  18 40.68  -32 29.7   1.461   2.469   169   12.3     11.3 244.9  23:47 (180, 88)  
July 12  18 35.15  -32 59.9   1.480   2.475   164   12.4     10.3 248.1  23:14 (180, 88)

* 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)  
July  5  15  4.71  -21 24.2   1.700   2.452   127   12.5      4.5 101.3  20:12 (180, 76)  
July 12  15  7.51  -21 32.3   1.790   2.473   121   12.7      6.9 102.0  19:48 (180, 77)

* 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)  
July  5   3 37.35  -36 13.2   4.492   4.345    75   13.1     14.9 127.8   5:38 (286, 52)  
July 12   3 44.14  -37 21.7   4.355   4.273    78   13.0     15.6 132.3   5:37 (287, 56)

* 29P/Schwassmann-Wachmann 1
It was in outburst and had a large coma in late June. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5  22 51.47   -3  7.7   5.182   5.751   119   13.3      1.6 307.5   4:02 (180, 58)  
July 12  22 50.64   -3  2.6   5.089   5.750   126   13.2      2.4 282.2   3:33 (180, 58)

* 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)  
July  5  11 48.06   -1  7.1   2.915   2.831    75   13.6     21.0 132.4  18:30 (142, 50)  
July 12  11 55.41   -2 44.7   3.054   2.885    70   13.8     21.1 130.7  18:33 (133, 48)

* 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)  
July  5   8 12.30   19 46.7   2.723   1.787    18   13.7     38.0 100.8  18:30 (113, -1)  
July 12   8 30.93   18 52.2   2.711   1.757    16   13.6     38.9 102.4  18:33 (111, -3)

* 53P/Van Biesbroeck
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)  
July  5  15 41.99  -10  1.3   1.742   2.540   132   14.3      3.3 183.9  20:49 (180, 65)  
July 12  15 42.50  -10 27.1   1.788   2.523   126   14.3      4.7 149.7  20:22 (180, 65)

* C/2002 T7 ( LINEAR )
It is expected to be 1 mag in the southern sky in 2004 spring. It is appearing at dawn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5   5 11.32   28 54.6   5.236   4.326    23   14.5      8.2  76.6   5:38 (236, -2)  
July 12   5 15.55   29  8.3   5.105   4.250    29   14.3      8.1  75.6   5:37 (233,  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)  
July  5  18  9.48  -54 38.2   2.829   3.724   147   14.5     12.6 225.6  23:16 (  0, 70)  
July 12  17 58.24  -54 59.6   2.850   3.716   143   14.5     12.7 196.3  22:38 (  0, 70)

* 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)  
July  5  18 37.10   56  1.4   5.271   5.556   101   14.5      7.5 298.2  23:43 (180, -1)  
July 12  18 31.65   56 21.0   5.294   5.575   100   14.6      6.7 288.4  23:11 (180, -1)

* 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)  
July  5   6 16.45   18 20.7   3.007   2.013     9   14.6     35.6  89.9   5:38 (253, -8)  
July 12   6 33.94   18 17.0   2.994   2.011    12   14.6     35.5  91.6   5:37 (252, -6)

* 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)  
July  5  15 53.86   21 54.9   2.812   3.400   117   14.9     30.7 251.2  21:00 (180, 33)  
July 12  15 39.97   20 39.1   2.848   3.346   110   14.8     28.8 246.3  20:19 (180, 34)

* 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)  
July  5   5 39.96   18 37.9   3.436   2.488    17   15.3      4.7 159.9   5:38 (248, -1)  
July 12   5 40.60   18  6.1   3.377   2.487    24   15.3      4.8 168.3   5:37 (245,  4)

* C/2003 H3 ( NEAT )
It will be fading gradually until December when it becomes fainter than 18 mag and gets low in the evening. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5  19 22.80    4 13.0   2.054   2.990   152   15.3     18.7 318.7   0:34 (180, 51)  
July 12  19 17.00    5 45.5   2.071   3.008   152   15.4     17.4 315.1   0:01 (180, 49)

* 66P/du Toit
It will be unobservable soon in the Northern Hemisphere. In the Southern Hemisphere, it will be observable at 15 mag in good condition until September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5  12  9.96  -15  5.9   1.126   1.463    85   15.7     27.9 137.8  18:30 (136, 64)  
July 12  12 19.99  -17 35.0   1.130   1.420    82   15.6     31.4 134.4  18:33 (124, 63)

* 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)  
July  5   2 22.08    9 46.1   2.685   2.456    66   15.6     18.9  75.5   5:38 (217, 38)  
July 12   2 30.40   10 16.6   2.642   2.498    70   15.8     17.3  76.6   5:37 (211, 39)

* 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)  
July  5  17  1.00   10 53.4   4.270   5.054   136   15.7      9.2 302.8  22:08 (180, 44)  
July 12  16 57.56   11 24.7   4.341   5.067   131   15.7      7.8 300.6  21:37 (180, 44)

* 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)  
July  5   1  0.35   21 39.2   3.910   3.874    80   16.1     10.1 287.6   5:38 (189, 33)  
July 12   0 54.92   21 58.7   3.777   3.878    88   16.0     12.3 281.8   5:37 (180, 33)

* 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)  
July  5  20 51.20   32 11.1   5.219   5.771   118   16.2     12.3 285.6   2:02 (180, 23)  
July 12  20 44.36   32 30.3   5.101   5.707   122   16.1     13.1 279.6   1:28 (180, 22)

* 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)  
July  5  13  0.82   30  5.0   5.267   5.189    80   16.5     12.4 181.1  18:30 (175, 25)  
July 12  13  1.01   28 39.3   5.401   5.231    74   16.6     12.2 175.6  18:33 (167, 25)

* 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)  
July  5  12 34.88   28 22.3   6.944   6.758    75   16.6      8.6 164.6  18:30 (168, 26)  
July 12  12 36.30   27 24.0   7.070   6.792    70   16.7      8.9 159.7  18:33 (161, 25)

* 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)  
July  5  17 36.90   40 22.2   5.260   5.753   114   16.7     15.9 274.0  22:43 (180, 15)  
July 12  17 27.39   40 24.4   5.290   5.748   111   16.7     15.2 268.5  22:06 (180, 15)

* 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)  
July  5  15 49.12   42 40.2   3.675   4.008   101   16.9     19.0 200.2  20:56 (180, 12)  
July 12  15 45.51   40 31.8   3.713   4.009    99   16.9     19.4 194.8  20:25 (180, 15)

* 2002 CE10
Keeps good condition until autumn. It will reach to 15.7 mag in September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5   1 52.37   35 45.2   2.251   2.052    65   17.4     10.9 264.3   5:38 (198, 17)  
July 12   1 44.97   35 34.0   2.108   2.058    73   17.3     15.2 261.9   5:37 (191, 18)

* 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)  
July  5  19  3.38  -15 16.1  11.200  12.208   172   17.4      3.7 264.8   0:14 (180, 70)  
July 12  19  1.59  -15 18.7  11.215  12.221   171   17.4      3.7 263.7  23:41 (180, 70)

* C/2003 L2 ( LINEAR )
New comet. It will be observable around 17 mag from autumn to winter in the northern sky. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  5  18 47.91   63 20.4   3.266   3.484    93   18.0     20.7 309.0  23:53 (180, -8)  
July 12  18 30.30   64 40.4   3.247   3.447    92   17.9     19.5 300.7  23:08 (180,-10)

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