Weekly Information about Bright Comets (2001 June 9: South)

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Updated on June 9, 2001
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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/2001 A2 ( LINEAR )


The brightening became slower in May. In the Southern Hemisphere, now it is a naked-eye object. In the Northern Hemisphere, it appears at dawn as 4.5 mag in late June.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   4 14.09  -27 15.1   0.384   0.835    51    4.6     86.4 276.2   5:33 (290, 20)  
June 16   3 21.24  -24 33.0   0.315   0.891    58    4.5    124.9 287.8   5:35 (277, 36)  

* 19P/Borrelly


It locates high in the Southern Hemisphere. In the Northern Hemisphere, it appears at dawn at 10 mag in late July, then reaches to 8 mag in autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   2 36.36   -7 43.3   2.247   1.745    48   12.3     41.5  67.0   5:33 (258, 30)  
June 16   2 54.52   -5 48.5   2.176   1.699    49   11.9     42.4  67.1   5:35 (254, 31)  

* 24P/Schaumasse


Diffused and hard to see. It must be fading rapidly now.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   9 10.20   26 18.7   1.593   1.300    54   12.1     59.2 107.2  18:25 (146, 20)  
June 16   9 38.85   24  5.9   1.634   1.335    54   12.7     58.1 110.0  18:25 (145, 22)  

* C/1999 Y1 ( LINEAR )


Appearing at dawn. However, it never locates high and will not be observable after August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   1  0.42  -10 19.8   3.396   3.181    69   12.5     14.6 168.2   5:33 (240, 50)  
June 16   1  1.49  -12  6.8   3.283   3.198    76   12.5     16.4 174.8   5:35 (234, 56)  

* C/1999 T1 ( McNaught-Hartley )


It locates good position, however it is getting diffused and will not be obervable soon.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  17 31.83   76 55.4   2.762   2.774    80   12.7      9.9 260.9   0:24 (180,-22)  
June 16  17 12.71   76 33.7   2.846   2.851    80   12.9     10.0 243.5  23:31 (180,-22)  

* 144P/2000 O2 ( Kushida )


Not observable until December when it becomes fainter than 17.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   5 33.79   22 22.6   2.453   1.447     5   13.0     48.8  89.2  18:25 (108,-13)  
June 16   5 58.52   22 19.5   2.447   1.437     4   12.9     49.2  91.6  18:25 (108,-13)  

* 29P/Schwassmann-Wachmann 1


KenIchi Kadota, Ageo, Japan, caught the outburst on May 17. It is now bright at 12 mag visually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  19 11.38  -28 19.0   5.020   5.935   151   13.3      5.4 264.6   2:02 (180, 83)  
June 16  19  8.31  -28 22.4   4.973   5.932   159   13.3      6.1 266.0   1:32 (180, 83)  

* C/2000 CT54 ( LINEAR )


It is not observable in the Northern Hemisphere until when it locates low in the evening sky at 15 mag in December.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   0 19.12  -71  3.6   2.721   3.157   106   13.7     10.0 103.0   5:33 (348, 52)  
June 16   0 31.92  -71 20.7   2.692   3.156   107   13.6      8.3 109.0   5:35 (350, 52)  

* C/1999 T2 ( LINEAR )


It is much brighter visually, around 12 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  13 24.87   25  2.5   3.150   3.589   107   14.0     23.3 227.3  20:12 (180, 30)  
June 16  13 16.94   23 11.5   3.285   3.625   101   14.2     21.1 221.3  19:37 (180, 32)  

* C/2000 OF8 ( Spacewatch )


In the Northern Hemisphere, it is not observable, will appear at dawn in November at 16.5 mag and fade. In the Southern Hemisphere, it locates high.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  14 58.26  -55  3.9   1.400   2.271   139   14.3     77.9 287.9  21:42 (  0, 70)  
June 16  14  5.44  -51 21.5   1.450   2.249   130   14.3     70.8 300.6  20:23 (  0, 74)  

* 51P/Harrington


Not yet observed in this return. Appearing at dawn. It will fade gradually after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   1 43.36    4 35.2   1.957   1.568    52   14.3     44.0  73.3   5:33 (236, 32)  
June 16   2  3.01    6  0.8   1.928   1.572    54   14.3     43.3  74.2   5:35 (233, 33)  

* C/2001 K5 ( LINEAR )


New comet. It reaches to 13.5 mag in 2002 summer, and keeps observable for a long while.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  15 16.24  -21 57.3   5.406   6.335   154   14.7     10.0 319.2  22:04 (180, 77)  
June 16  15 13.15  -21  5.0   5.434   6.306   146   14.7      9.4 321.9  21:33 (180, 76)  

* 73P/Schwassmann-Wachmann 3


It will be observable in the morning sky soon.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   2 22.28    6 34.3   2.549   1.938    43   14.7     26.4  71.3   5:33 (243, 24)  
June 16   2 33.67    7 30.4   2.554   2.002    46   15.0     24.7  72.1   5:35 (238, 26)  

* 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  9   5 22.02  -73  9.8  13.489  13.635    96   15.0      4.2  94.1  18:25 ( 20, 32)  
June 16   5 28.71  -73 13.2  13.525  13.678    96   15.0      4.2  99.4   5:35 (340, 32)  

* C/1999 K5 ( LINEAR )


It hardly faded out since the perihelion passage in 2000 June, and still keeps 14 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   6 24.22  -22 51.6   5.116   4.520    49   15.1     14.6  57.3  18:25 ( 77, 22)  
June 16   6 30.41  -21 59.8   5.193   4.562    47   15.2     14.0  60.6  18:25 ( 75, 18)  

* 47P/Ashbrook-Jackson


It will be observable in the morning sky soon.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   3  2.39   23  1.1   3.381   2.542    29   15.3     26.8  67.6   5:33 (237,  5)  
June 16   3 14.90   24 10.4   3.358   2.562    32   15.4     26.2  68.3   5:35 (233,  8)  

* C/1999 U4 ( Catalina-Skiff )


Although it is low right now, it is observable until 2002 autumn at 15 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   4 48.70   58 44.5   5.823   5.037    36   15.3     15.6  69.3   5:33 (217,-30)  
June 16   5  2.12   59 22.8   5.804   5.025    36   15.3     15.9  69.7   5:35 (215,-28)  

* C/2001 B2 ( NEAT )


Because it is far away, it keeps brighter than 16 mag until August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  10 16.75   -1 47.9   5.810   5.700    78   15.4      5.6 351.2  18:25 (146, 52)  
June 16  10 16.61   -1 12.0   5.952   5.719    71   15.4      4.8   2.3  18:25 (138, 48)  

* C/1999 J2 ( Skiff )


It is observable as 15.5 mag until autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  15 15.48    8 24.9   6.838   7.624   138   15.5      9.1 242.8  22:03 (180, 47)  
June 16  15 11.81    7 54.2   6.916   7.640   132   15.5      8.7 238.3  21:32 (180, 47)  

* C/2000 SV74 ( LINEAR )


Appearing at dawn. It will brighten and locate higher after this. It will be observable at 14 mag for one year from 2001 September.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   1 58.86   29 21.8   5.277   4.585    42   15.7     13.6  33.0   5:33 (222, 11)  
June 16   2  2.73   30 43.0   5.163   4.547    48   15.6     13.7  30.3   5:35 (217, 13)  

* C/2000 WM1 ( LINEAR )


Appearing at dawn. It reaches to 4 mag in 2002 January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   2 44.36   45 53.6   4.386   3.629    37   15.8     14.5  78.7   5:33 (218, -8)  
June 16   2 53.90   46 13.7   4.263   3.546    40   15.6     14.5  78.2   5:35 (215, -5)  

* 74P/Smirnova-Chernykh


It is observable in the evening sky until July.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  11 33.96   10  0.6   3.403   3.582    91   15.7      9.1 126.3  18:25 (179, 45)  
June 16  11 37.74    9 21.2   3.505   3.585    86   15.8     10.4 124.1  18:25 (171, 45)  

* C/2001 K3 ( Skiff )


New comet. It is observable at 16 mag in good condition until late August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  20 56.00   -1  7.3   2.446   3.092   120   15.8     19.3 341.8   3:47 (180, 56)  
June 16  20 52.63    1  0.7   2.387   3.103   126   15.8     20.0 335.2   3:16 (180, 54)  

* 16P/Brooks 2


Not yet observed in this return. It appears at dawn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9   1 22.08    8 45.9   2.238   1.870    55   16.0     36.7  71.6   5:33 (229, 32)  
June 16   1 38.57   10  4.9   2.178   1.859    58   15.9     36.5  72.5   5:35 (224, 33)  

* C/2001 C1 ( LINEAR )


It keeps around 17 mag until 2002 autumn because it is far away. However, it goes to the southern sky.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  13 33.40  -17 19.7   4.862   5.562   129   16.4      7.8 247.4  20:21 (180, 72)  
June 16  13 30.16  -17 41.4   4.934   5.542   122   16.4      6.8 241.7  19:50 (180, 73)  

* C/1997 BA6 ( Spacewatch )


Appearing at dawn. It will fade out gradually after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  21 54.76   -4 51.8   5.555   5.962   108   16.4      6.2 315.9   4:45 (180, 60)  
June 16  21 52.46   -4 21.8   5.494   6.008   115   16.4      6.9 306.9   4:16 (180, 59)  

* 95P/(2060) Chiron


No observations reported since May 1, 2000.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  17 45.19  -17  1.6   9.760  10.760   169   16.7      4.0 274.6   0:37 (180, 72)  
June 16  17 43.23  -16 59.6   9.763  10.773   173   16.7      4.0 273.6   0:07 (180, 72)  

* P/2001 K1 ( NEAT )


New periodic comet. It will fade out after this and be fainter than 18 mag in August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  15 13.52   -6  3.5   1.908   2.818   147   16.9     10.0 233.8  22:01 (180, 61)  
June 16  15 10.22   -6 47.0   1.976   2.838   140   17.0      8.8 222.4  21:30 (180, 62)  

* C/1999 N4 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  14  9.88    8 14.9   5.509   6.164   126   17.1     12.8 269.8  20:57 (180, 47)  
June 16  14  4.17    8 12.4   5.630   6.186   119   17.2     11.4 266.7  20:24 (180, 47)  

* C/2000 K1 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June  9  15 31.46   38 42.5   6.798   7.274   114   17.2      9.6 280.8  22:19 (180, 16)  
June 16  15 25.97   38 51.5   6.879   7.298   110   17.2      8.9 275.3  21:46 (180, 16)  

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.