Weekly Information about Bright Comets (2000 June 24: South)

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 Updated on June 28, 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 8.3 mag. It will be 5 mag in 2000 July. In the Northern Hemisphere, it keeps observable until early August. In the Southern Hemisphere, it locates very low between late May and mid June, however, it locates high after late July. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 24   2 24.08   39 21.8   1.244   0.983    50    8.7     33.1  27.4   5:37 (210,  7)  
July  1   2 36.79   43 37.0   0.992   0.907    53    7.9     52.9  30.9   5:38 (205,  5)

* 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)  
June 24   4 27.85  -33  2.9   3.048   2.718    61   12.3     29.7 100.6   5:37 (290, 33)  
July  1   4 44.58  -33 44.0   2.937   2.640    63   12.1     31.4 101.8   5:38 (289, 36)

* (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)  
June 24  20 37.61  -25 44.3   0.822   1.763   146   12.9     17.1 275.6   2:29 (180, 81)  
July  1  20 27.54  -25 31.3   0.792   1.769   155   12.7     21.9 275.4   1:51 (180, 81)

* 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)  
June 24  22 37.46  -49 48.5   3.291   3.936   122   13.0     11.0 264.4   4:28 (  0, 75)  
July  1  22 28.84  -49 54.3   3.252   3.966   128   13.0     12.9 267.4   3:52 (  0, 75)

* 29P/Schwassmann-Wachmann 1

 Image: 1999 June 12
The altitude will be 23 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)  
June 24  16 48.97  -31 41.4   5.087   6.051   159   13.4      6.3 285.7  22:36 (180, 87)  
July  1  16 45.81  -31 28.9   5.124   6.049   153   13.4      5.8 288.9  22:06 (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)  
June 24   3 27.92  -75 24.8   2.888   3.257   102   13.4     28.1  98.5   5:37 (344, 42)  
July  1   4 19.09  -75 36.3   2.902   3.256   101   13.4     26.7  90.1   5:38 (343, 41)

* C/1999 T2 ( LINEAR )

 Image: 2000 Jan. 8
It will be 13 mag at good position in 2000 September. It was reported as 13 mag visually. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 24  21 55.70   57 38.3   3.294   3.388    86   13.9     28.0 315.0   3:47 (180, -3)  
July  1  21 35.96   59 50.0   3.207   3.359    89   13.8     29.7 306.8   3:00 (180, -5)

* 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 24   5 49.37  -69 27.0  11.259  11.356    92   13.8      5.1 104.2   5:37 (335, 32)  
July  1   5 55.96  -69 37.3  11.304  11.404    93   13.8      5.2 109.3   5:38 (335, 34)

* 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)  
June 24  20 49.75  -36 12.7   1.784   2.673   143   14.1      5.5 222.0   2:41 (  0, 89)  
July  1  20 46.93  -36 40.5   1.722   2.650   149   13.9      7.2 237.5   2:10 (  0, 88)

* 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)  
June 24   1 25.97   13 31.7   4.506   4.231    67   14.0     11.8 100.8   5:37 (210, 36)  
July  1   1 31.31   13 13.8   4.414   4.239    73   14.0     11.0 105.1   5:38 (204, 38)

* 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)  
June 24  15 27.68   34 19.9   6.712   7.128   110   15.2     10.8 223.2  21:15 (180, 21)  
July  1  15 23.76   33 22.4   6.775   7.132   106   15.2     10.7 217.5  20:44 (180, 22)

* 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)  
June 24   3 24.64   48 52.2   4.746   4.042    41   15.4      4.3  83.7   5:37 (213, -7)  
July  1   3 27.41   48 56.7   4.642   4.001    45   15.4      3.6  77.2   5:38 (209, -4)

* 2000 GK137
New near-earth astedoid. 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)  
June 24  19  1.48   51 47.2   0.185   1.076   104   15.5     97.2  41.6   0:50 (180,  4)  
July  1  20  7.80   59 42.7   0.170   1.046    95   15.6    111.5  56.1   1:27 (180, -4)

* 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)  
June 24   0 26.51  -10  9.2   1.941   2.203    90   15.5     14.1  84.8   5:37 (202, 64)  
July  1   0 32.57  -10  4.4   1.899   2.244    95   15.7     11.6  89.6   5:38 (190, 65)

* C/1999 H3 ( LINEAR )

 Image: 2000 Feb. 17
It will fade out gradually after this, but it can be observed as 17.5 mag in 2001 spring. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 24  10 41.37   28  4.0   4.900   4.479    60   16.0     10.4 179.8  18:27 (152, 21)  
July  1  10 41.69   26 52.3   5.037   4.517    54   16.1     10.1 173.5  18:29 (146, 19)

* 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)  
June 24   3 12.86   24 46.2   2.139   1.521    40   16.8     43.0  71.9   5:37 (227, 13)  
July  1   3 35.16   26 18.1   2.007   1.427    42   16.2     47.3  73.9   5:38 (225, 13)

* C/2000 K1 ( LINEAR )
New comet. Although it will be fading after this, it is 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)  
June 24  16 12.40   12 27.7   5.669   6.413   133   16.3     11.7 290.0  22:00 (180, 43)  
July  1  16  7.35   12 52.7   5.748   6.423   127   16.4     10.6 287.5  21:27 (180, 42)

* 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)  
June 24  16 48.29  -16 54.2   9.156  10.113   159   16.3      3.8 276.8  22:36 (180, 72)  
July  1  16 46.54  -16 51.4   9.214  10.126   152   16.4      3.4 275.8  22:06 (180, 72)

* 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)  
June 24  16 37.47    5 43.3   4.665   5.509   142   16.5     19.0 269.9  22:24 (180, 49)  
July  1  16 28.78    5 40.3   4.728   5.512   136   16.5     17.9 267.5  21:48 (180, 49)

* 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)  
June 24   2 22.01   11  0.3   2.436   2.049    55   16.6     33.2  65.0   5:37 (226, 31)  
July  1   2 36.36   12 37.3   2.366   2.035    58   16.5     33.0  65.5   5:38 (222, 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)  
June 24  16 16.76  -28 19.2   1.724   2.673   153   16.6     11.5 294.8  22:04 (180, 83)  
July  1  16 11.78  -27 45.1   1.734   2.639   146   16.5      9.7 300.4  21:32 (180, 83)

* 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)  
June 24   3  5.96   34 39.7   6.898   6.178    41   16.6     10.8  47.8   5:37 (219,  6)  
July  1   3 10.42   35 30.9   6.795   6.147    47   16.5     10.6  45.8   5:38 (215,  9)

* C/2000 K2 ( LINEAR )
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)  
June 24  17 14.12   13 34.8   1.851   2.712   140   16.7      6.4 299.1  23:01 (180, 41)  
July  1  17 11.66   13 49.2   1.844   2.680   137   16.6      4.7 282.5  22:31 (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)  
June 24   0 47.15   11 22.3   2.745   2.715    77   17.0     19.2  61.9   5:37 (200, 42)  
July  1   0 55.08   12 24.9   2.622   2.678    82   16.9     18.5  61.4   5:38 (193, 42)

* 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)  
June 24  11  7.77   13  6.5   2.258   2.141    70   17.0     22.0 123.5  18:27 (152, 37)  
July  1  11 16.93   11 38.9   2.295   2.102    66   16.9     23.8 122.7  18:29 (145, 37)

* 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)  
June 24   1 37.13   21 32.4   2.457   2.190    62   17.1     28.7  53.1   5:37 (209, 28)  
July  1   1 48.53   23 31.7   2.398   2.198    66   17.0     27.9  52.5   5:38 (204, 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)  
June 24  20 14.41   36 54.4   5.707   6.178   113   17.2     12.2 311.7   2:05 (180, 18)  
July  1  20  8.86   37 47.4   5.694   6.203   115   17.2     12.0 305.8   1:32 (180, 17)

* 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)  
June 24  17  7.96   30 45.5   6.328   6.944   123   17.7      5.2 274.2  22:55 (180, 24)  
July  1  17  5.25   30 45.1   6.396   6.980   121   17.8      4.8 264.1  22:25 (180, 24)

* 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)  
June 24  22 34.94   22 11.8   2.229   2.628   101   17.9     12.2  43.6   4:25 (180, 33)  
July  1  22 38.77   23 10.6   2.139   2.610   106   17.8     10.4  40.2   4:02 (180, 32)

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