Weekly Information about Bright Comets (2000 Aug. 5: North)

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 Updated on August 5, 2000
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Northern Hemisphere.

Please see also the Comet Rendezvous Calendar, Latest Pictures of Comets.

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* C/1999 S4 ( LINEAR )

 Image: 2000 Feb. 12
After the small outburst around July 22, it is fading and getting diffused drastically. It was 6.6 mag on 26, but 9.5 mag on Aug. 2 by Yoshimi Nagai. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  12 21.62    3 20.1   0.683   0.789    50    9.6    114.0 160.1  20:34 ( 85, 12)  
Aug. 12  12 33.56   -5 40.2   0.936   0.833    50   10.7     57.5 163.6  20:25 ( 79,  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. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   6 25.06  -38 25.5   2.452   2.247    66   11.0     39.9 103.2   3:36 (304,-20)  
Aug. 12   6 48.66  -39 27.8   2.377   2.170    65   10.7     41.4 102.3   3:44 (306,-18)

* 2P/Encke
It will brighten rapidly in the morning low sky until mid August. It is not observable after perihelion passage. It was 10.5-11.0 mag visually around Aug. 1. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   6 25.67   30 21.9   1.431   0.886    37   12.3     87.3  94.1   3:36 (245, 18)  
Aug. 12   7 15.32   28 54.4   1.360   0.762    33   11.1     99.4 100.4   3:44 (245, 15)

* (433) Eros
Bright Amor asteroid. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  19 23.15  -22 56.7   0.807   1.783   156   12.7     21.6 287.4  22:24 (  0, 32)  
Aug. 12  19 13.93  -22 10.2   0.843   1.783   147   13.0     17.1 293.0  21:48 (  0, 33)

* C/1997 BA6 ( Spacewatch )

 Image: 1998 Dec. 5
It is extremely low 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)  
Aug.  5  21 30.64  -48 30.3   3.236   4.131   147   13.3     18.6 289.4   0:37 (  0,  6)  
Aug. 12  21 18.56  -47 40.8   3.277   4.165   147   13.3     18.7 294.8  23:52 (  0,  7)

* 47P/Ashbrook-Jackson
It will be 13-14 mag from August to November. But the altitude keeps lower than 20 deg until late August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  20 18.33  -37 34.3   1.578   2.544   157   13.3     11.0 279.6  23:20 (  0, 17)  
Aug. 12  20 12.27  -37 15.9   1.585   2.525   152   13.3     10.3 289.3  22:46 (  0, 18)

* C/1999 T2 ( LINEAR )

 Image: 2000 Jan. 8
It will be observable in good condition at the same magnitude until October. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  18 56.45   62 55.0   2.953   3.229    96   13.4     34.3 252.4  21:56 (180, 62)  
Aug. 12  18 25.14   61 19.7   2.945   3.206    95   13.4     34.0 241.7  20:58 (180, 64)

* 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)  
Aug.  5  16 37.15  -30 21.6   5.483   6.038   118   13.6      1.9 342.1  20:34 ( 13, 23)  
Aug. 12  16 37.15  -30  9.6   5.579   6.035   112   13.6      1.7  18.7  20:25 ( 17, 23)

* C/1999 K5 ( LINEAR )

 Image: 1999 July 31
It is only observable in the Southern Hemisphere until the end of 2001. Recently it is brighter than this ephemeris, around 13.0 mag 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   7 23.62  -72 28.1   3.092   3.269    90   13.6     16.7  67.4   3:36 (338,-37)  
Aug. 12   7 45.54  -71 45.2   3.144   3.276    88   13.6     14.6  67.5   3:44 (338,-36)

* C/1999 K8 ( LINEAR )

 Image: 1999 Dec. 30
Because it is far away, it keeps 14 mag until late 2000. Very diffused. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   1 50.28   10 24.0   3.935   4.288   103   13.8      8.5 145.3   3:36 (319, 60)  
Aug. 12   1 52.26    9 31.6   3.845   4.300   110   13.8      8.7 156.4   3:44 (335, 62)

* 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)  
Aug.  5   6 26.78  -71 14.3  11.560  11.640    92   14.0      5.4 134.4   3:36 (338,-33)  
Aug. 12   6 32.19  -71 41.8  11.617  11.687    91   14.0      5.4 139.4   3:44 (339,-30)

* 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)  
Aug.  5   3 29.85   49 43.7   3.983   3.805    72   14.8      3.4 298.4   3:36 (232, 54)  
Aug. 12   3 27.00   49 54.4   3.831   3.767    78   14.7      5.2 286.3   3:44 (229, 60)

* 2000 LC16
New near-earth asteroid. It will be at the peak of 15 mag in mid August. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  22 26.08   -3 59.1   0.245   1.242   155   15.2     49.3  34.2   1:31 (  0, 51)  
Aug. 12  22 38.41    0 43.7   0.239   1.237   156   15.1     46.8  32.2   1:16 (  0, 56)

* 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)  
Aug.  5  15 12.60   27 52.6   7.177   7.153    84   15.3     10.0 189.2  20:34 ( 86, 60)  
Aug. 12  15 12.01   26 43.4   7.266   7.158    79   15.4      9.9 183.7  20:25 ( 87, 55)

* (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)  
Aug.  5   3 28.96   -7 51.7   1.847   2.040    85   15.4     27.5  97.0   3:36 (307, 30)  
Aug. 12   3 41.48   -8 18.4   1.787   2.037    88   15.3     26.2  99.5   3:44 (312, 33)

* 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)  
Aug.  5   1 28.81   17  8.8   2.020   2.496   105   16.0     13.1  57.0   3:36 (321, 68)  
Aug. 12   1 33.81   17 56.9   1.907   2.460   111   15.8     11.5  55.0   3:44 (339, 72)

* 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)  
Aug.  5   3 47.96   20  2.2   2.024   1.992    73   16.0     30.6  67.6   3:36 (276, 44)  
Aug. 12   4  1.90   21 22.2   1.957   1.989    76   15.9     29.8  67.8   3:44 (278, 49)

* C/2000 K2 ( LINEAR )
It will be observable as 16 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)  
Aug.  5  17 11.64   11 44.0   1.924   2.543   116   16.0      9.3 142.3  20:34 ( 12, 66)  
Aug. 12  17 14.94   10 49.2   1.958   2.522   112   16.0     11.7 135.3  20:25 ( 20, 64)

* 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)  
Aug.  5  15 49.79   13 45.5   6.272   6.478    97   16.1      4.4 272.4  20:34 ( 54, 59)  
Aug. 12  15 47.98   13 45.6   6.390   6.490    91   16.2      3.2 267.4  20:25 ( 60, 55)

* 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)  
Aug.  5   3 28.87   40  2.7   6.195   5.996    74   16.2      9.3  29.4   3:36 (248, 55)  
Aug. 12   3 31.44   41  0.1   6.065   5.966    79   16.2      9.1  24.4   3:44 (247, 61)

* 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)  
Aug.  5  16  7.52  -25 23.9   1.912   2.474   111   16.3      6.1  63.9  20:34 ( 21, 26)  
Aug. 12  16 11.07  -25  7.1   1.962   2.442   105   16.3      8.5  75.7  20:25 ( 25, 26)

* 9P/Tempel 1
It was 15.8 mag on July 29 by KenIchi Kadota, Ageo, Japan. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   0 43.48  -11 44.5   1.712   2.451   126   16.4      6.2 207.5   3:36 (356, 43)  
Aug. 12   0 41.39  -12 25.7   1.687   2.492   133   16.5      8.6 223.3   3:19 (  0, 43)

* 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)  
Aug.  5  16 41.19  -16 49.0   9.671  10.187   118   16.5      0.8 254.1  20:34 ( 15, 37)  
Aug. 12  16 40.98  -16 50.9   9.787  10.200   111   16.5      0.3 197.8  20:25 ( 20, 36)

* 110P/Hartley 3
It will reach to 14 mag and locate overhead in December. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   3 24.93   29 57.5   2.877   2.821    76   16.8     18.0  68.9   3:36 (265, 53)  
Aug. 12   3 33.77   30 41.6   2.772   2.803    81   16.6     17.0  68.8   3:44 (267, 59)

* C/1999 N4 ( LINEAR )
It is observable around 17.0 mag until September when it becomes low. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  15 55.81    4 22.2   5.236   5.531   101   16.8     10.4 251.7  20:34 ( 42, 52)  
Aug. 12  15 51.57    3 58.4   5.361   5.536    94   16.9      8.9 247.0  20:25 ( 48, 49)

* 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)  
Aug.  5   2 39.99   32 57.4   2.103   2.257    85   16.9     22.2  46.3   3:36 (265, 63)  
Aug. 12   2 48.55   34 43.5   2.044   2.272    89   16.9     20.7  43.7   3:44 (264, 69)

* 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)  
Aug.  5  22 43.70   25 39.3   1.748   2.529   130   17.2      2.9 258.1   1:49 (  0, 81)  
Aug. 12  22 41.82   25 26.5   1.687   2.515   135   17.1      5.4 234.7   1:20 (  0, 80)

* 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)  
Aug.  5  19 37.96   40  6.8   5.771   6.335   119   17.3      9.9 275.6  22:39 (180, 85)  
Aug. 12  19 32.14   40  9.7   5.814   6.362   118   17.4      9.2 269.3  22:06 (180, 85)

* C/1999 T3 ( LINEAR )

 Image: 1999 Nov. 13
It will be at peak of 17 mag in September and October, but the altitude is lower than 40 deg. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5   3 31.72   -9  7.5   5.352   5.369    85   17.4     11.6 166.1   3:36 (307, 29)  
Aug. 12   3 32.77  -10 29.3   5.243   5.367    91   17.4     12.2 172.3   3:44 (316, 33)

* 61P/Shajn-Schaldach
Although it is in the evening low sky as 17 mag in 2000 autumn, it will be observable again as 16.5 mag in 20001 autumn. 
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug.  5  20 22.56  -13 23.3   1.957   2.961   169   17.7     11.6 248.3  23:24 (  0, 42)  
Aug. 12  20 17.54  -13 53.8   1.952   2.936   162   17.6     11.0 246.3  22:51 (  0, 41)

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