Weekly Information about Bright Comets (2000 July 1: South)

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 Updated on July 3, 2000
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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/1999 S4 ( LINEAR )

 Image: 2000 Feb. 12
Now it is about 7.7 mag, a bit brighter than the ephemeris. It will be 5 mag in 2000 July. In the Northern Hemisphere, it keeps observable until early August. In the Southern Hemisphere, it locates high after late July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   2 36.79   43 37.0   0.992   0.907    53    7.9     52.9  30.9   5:38 (205,  5)  
July  8   3  5.20   50 31.4   0.737   0.843    54    7.0     98.4  38.3   5:37 (202, -1)

* C/1999 T1 ( McNaught-Hartley )
It is expected to be bright as 7 mag in late 2000. Northern people cannot observe it until December. It has been brightening as expected. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   4 44.58  -33 44.0   2.937   2.640    63   12.1     31.4 101.8   5:38 (289, 36)  
July  8   5  2.35  -34 31.4   2.828   2.562    64   11.8     33.1 102.7   5:37 (289, 38)

* (433) Eros
Bright Amor asteroid. It reaches to 12 mag in mid July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  20 27.54  -25 31.3   0.792   1.769   155   12.7     21.9 275.4   1:51 (180, 81)  
July  8  20 15.33  -25 14.3   0.772   1.774   164   12.4     25.4 276.4   1:12 (180, 80)

* C/1997 BA6 ( Spacewatch )

 Image: 1998 Dec. 5
Only southern people can observe it. In the Northern Hemisphere, the altitude will be higher than 10 deg after September. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  22 28.84  -49 54.3   3.252   3.966   128   13.0     12.9 267.4   3:52 (  0, 75)  
July  8  22 18.83  -49 55.5   3.223   3.998   134   13.1     14.7 271.0   3:15 (  0, 75)

* 29P/Schwassmann-Wachmann 1

 Image: 1999 June 12
The altitude will be 24 deg at best in the Northern Hemisphere. Now it is not in outburst. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  16 45.81  -31 28.9   5.124   6.049   153   13.4      5.8 288.9  22:06 (180, 86)  
July  8  16 43.04  -31 15.5   5.175   6.046   146   13.4      5.1 292.7  21:35 (180, 86)

* C/1999 K5 ( LINEAR )

 Image: 1999 July 31
It is only observable in the Southern Hemisphere until the end of 2001. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   4 19.09  -75 36.3   2.902   3.256   101   13.4     26.7  90.1   5:38 (343, 41)  
July  8   5  7.12  -75 22.0   2.926   3.256    99   13.5     24.9  82.5   5:37 (343, 40)

* C/1999 T2 ( LINEAR )

 Image: 2000 Jan. 8
It will be 13 mag at good position in 2000 September. It was reported as 12.5 mag visually, but also reported as fainter than 14 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  21 35.96   59 50.0   3.207   3.359    89   13.8     29.7 306.8   3:00 (180, -5)  
July  8  21 11.13   61 42.5   3.130   3.331    92   13.7     31.3 297.5   2:08 (180, -7)

* 47P/Ashbrook-Jackson
It will be 14 mag from August to November. But the altitude keeps lower than 20 deg until late August. It was observed as about 15 mag on May 4. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  20 46.93  -36 40.5   1.722   2.650   149   13.9      7.2 237.5   2:10 (  0, 88)  
July  8  20 42.78  -37  5.7   1.670   2.628   155   13.8      8.8 247.9   1:39 (  0, 88)

* 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  1   5 55.96  -69 37.3  11.304  11.404    93   13.8      5.2 109.3   5:38 (335, 34)  
July  8   6  2.46  -69 50.9  11.351  11.451    93   13.9      5.2 114.5   5:37 (335, 36)

* C/1999 K8 ( LINEAR )

 Image: 1999 Dec. 30
Because it is far away, it keeps 14 mag until late 2000. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   1 31.31   13 13.8   4.414   4.239    73   14.0     11.0 105.1   5:38 (204, 38)  
July  8   1 36.18   12 51.1   4.318   4.247    79   14.0     10.3 110.4   5:37 (197, 40)

* C/1999 J2 ( Skiff )

 Image: 2000 Jan. 28
It will be observable as 15 mag with a good condition. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  15 23.76   33 22.4   6.775   7.132   106   15.2     10.7 217.5  20:44 (180, 22)  
July  8  15 20.40   32 21.0   6.846   7.135   102   15.2     10.6 211.8  20:13 (180, 23)

* C/1999 Y1 ( LINEAR )

 Image: 2000 Feb. 5
Appearing at dawn. It will be observable as 13.5 mag under good condition from October to January. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   3 27.41   48 56.7   4.642   4.001    45   15.4      3.6  77.2   5:38 (209, -4)  
July  8   3 29.58   49  3.2   4.528   3.961    50   15.3      2.8  67.4   5:37 (206, -2)

* 2000 GK137
New near-earth asteroid. It will be brighter than 16 mag until mid July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  20  7.80   59 42.7   0.170   1.046    95   15.6    111.5  56.1   1:27 (180, -4)  
July  8  21 58.76   64 29.5   0.161   1.021    87   15.7    122.4  81.7   2:49 (180, -9)

* (1362) Griqua
Unusual asteroid. It reaches to 14.2 mag in November. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   2 19.22   -7 23.1   2.171   2.073    70   15.7     31.3  87.2   5:38 (233, 50)  
July  8   2 33.83   -7 15.4   2.103   2.064    73   15.6     30.8  88.8   5:37 (229, 52)

* 2P/Encke
It will brighten rapidly in the morning low sky until mid August. It is not observable after perihelion passage. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   3 35.16   26 18.1   2.007   1.427    42   16.2     47.3  73.9   5:38 (225, 13)  
July  8   4  0.43   27 46.1   1.876   1.328    42   15.6     52.6  76.5   5:37 (223, 12)

* 9P/Tempel 1
No successful observations reported in the morning. It was fainter than 14.5 mag on May 15 by Biver. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   0 32.57  -10  4.4   1.899   2.244    95   15.7     11.6  89.6   5:38 (190, 65)  
July  8   0 37.44  -10  8.0   1.857   2.286   101   15.8      9.0  97.2   5:32 (180, 65)

* 95P/(2060) Chiron

 Image: 1999 June 12
It keeps over 30 deg high until end of August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  16 46.54  -16 51.4   9.214  10.126   152   16.4      3.4 275.8  22:06 (180, 72)  
July  8  16 44.97  -16 49.4   9.284  10.138   145   16.4      3.0 274.6  21:37 (180, 72)

* C/2000 K1 ( LINEAR )
It will be observable as 17 mag even in 2001 spring because it is very far. It is 14.5 mag visually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  16  7.35   12 52.7   5.748   6.423   127   16.4     10.6 287.5  21:27 (180, 42)  
July  8  16  2.76   13 12.3   5.838   6.433   121   16.4      9.4 285.0  20:55 (180, 42)

* P/1991 T1 ( Shoemaker-Levy 5 )
Unrecovered periodic comet in first return. The condition has been bad before now. After this, it will be brighter and higher, until October when it will locate overhead as 15.4 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   2 36.36   12 37.3   2.366   2.035    58   16.5     33.0  65.5   5:38 (222, 32)  
July  8   2 50.74   14 11.9   2.297   2.023    61   16.4     32.7  65.9   5:37 (217, 32)

* 44P/Reinmuth 2
In the Northern Hemisphere, it keeps 16 mag and 25 deg high until late August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  16 11.78  -27 45.1   1.734   2.639   146   16.5      9.7 300.4  21:32 (180, 83)  
July  8  16  8.02  -27 11.2   1.755   2.606   138   16.5      7.5 309.0  21:00 (180, 82)

* C/1999 U4 ( Catalina-Skiff )

 Image: 1999 Nov. 28
It will be observable in good condition as 15 mag from autumn to winter. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   3 10.42   35 30.9   6.795   6.147    47   16.5     10.6  45.8   5:38 (215,  9)  
July  8   3 14.68   36 23.1   6.685   6.116    52   16.5     10.4  43.5   5:37 (210, 10)

* C/1999 N4 ( LINEAR )
It keeps 16.5 mag at good position until late July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  16 28.78    5 40.3   4.728   5.512   136   16.5     17.9 267.5  21:48 (180, 49)  
July  8  16 20.70    5 32.2   4.806   5.515   130   16.6     16.6 264.9  21:13 (180, 49)

* C/2000 K2 ( LINEAR )
It will be observable as 16.5-17 mag until late October. It is 14.5-15.0 mag visually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  17 11.66   13 49.2   1.844   2.680   137   16.6      4.7 282.5  22:31 (180, 41)  
July  8  17  9.78   13 49.1   1.846   2.649   133   16.6      3.3 251.9  22:02 (180, 41)

* 75P/Kohoutek
It reached to 13 mag at return in 1987, however, it was not observed at return in 1994. The ephemeris says it will reach to 13.7 mag in November, but it may be much fainter. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   0 55.08   12 24.9   2.622   2.678    82   16.9     18.5  61.4   5:38 (193, 42)  
July  8   1  2.69   13 26.0   2.500   2.642    86   16.7     17.7  61.0   5:37 (187, 41)

* 71P/Clark
It is not observable around the perihelion passage. In July when it will be lower than 20 deg, it reaches only to 16.5 mag. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  11 16.93   11 38.9   2.295   2.102    66   16.9     23.8 122.7  18:29 (145, 37)  
July  8  11 26.80   10  6.9   2.328   2.064    62   16.8     25.4 122.0  18:32 (139, 35)

* 17P/Holmes
It has been already observed at this return, but no observations reported recently. It will be 17 mag at good position until November. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1   1 48.53   23 31.7   2.398   2.198    66   17.0     27.9  52.5   5:38 (204, 27)  
July  8   1 59.65   25 29.2   2.340   2.208    69   17.0     26.9  51.8   5:37 (200, 27)

* C/1999 K2 ( Ferris )

 Image: 1999 May 31
Fading gradually. It keeps 17-18 mag at good position until October. No observations reported since 1999 August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  20  8.86   37 47.4   5.694   6.203   115   17.2     12.0 305.8   1:32 (180, 17)  
July  8  20  2.92   38 32.4   5.690   6.229   117   17.2     11.8 299.8   0:59 (180, 16)

* 14P/Wolf
It has been already observed at this return, but no observations reported recently. It will be 17 mag at good position from August to December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  22 38.77   23 10.6   2.139   2.610   106   17.8     10.4  40.2   4:02 (180, 32)  
July  8  22 41.71   24  2.1   2.052   2.592   110   17.7      8.3  35.6   3:37 (180, 31)

* C/1999 F2 ( Dalcanton )

 Image: 1999 June 30
It keeps the good condition until autumn. It will fade out gradually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July  1  17  5.25   30 45.1   6.396   6.980   121   17.8      4.8 264.1  22:25 (180, 24)  
July  8  17  2.81   30 38.8   6.471   7.017   118   17.8      4.4 252.8  21:55 (180, 24)

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