Weekly Information about Bright Comets (2001 June 16: North)

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Updated on June 16, 2001
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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/2001 A2 ( LINEAR )


It has brightened suddenly again on around June 10 and reached to 3.3 mag. In the Northern Hemisphere, it will soon appear at dawn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16   3 21.24  -24 33.0   0.315   0.891    58    3.3    124.9 287.8   2:58 (285,-23)  
June 23   2 12.40  -17 48.0   0.265   0.961    70    3.2    173.8 296.5   3:00 (292, -1)  

* 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 16   2 54.52   -5 48.5   2.176   1.699    49   11.9     42.4  67.1   2:58 (272, -7)  
June 23   3 13.03   -3 52.2   2.107   1.656    50   11.6     43.3  67.3   3:00 (272, -4)  

* 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 16   1  1.49  -12  6.8   3.283   3.198    76   12.5     16.4 174.8   2:58 (294, 11)  
June 23   1  1.79  -14  8.2   3.169   3.216    83   12.4     18.4 180.9   3:00 (300, 15)  

* 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 16   9 38.85   24  5.9   1.634   1.335    54   12.7     58.1 110.0  21:02 (103, 25)  
June 23  10  5.93   21 38.9   1.683   1.376    54   13.4     56.7 112.4  21:04 (101, 23)  

* 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 16   5 58.52   22 19.5   2.447   1.437     4   12.9     49.2  91.6  21:02 (133,-16)  
June 23   6 23.36   22  1.9   2.444   1.432     4   12.8     49.5  93.9  21:04 (134,-17)  

* 29P/Schwassmann-Wachmann 1


It bursted out on May 17 and reached to 12 mag. Although it faded after this, it bursted out again on June 12.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  19  8.31  -28 22.4   4.973   5.932   159   13.3      6.1 266.0   1:32 (  0, 27)  
June 23  19  4.93  -28 24.9   4.939   5.930   166   13.3      6.6 267.4   1:01 (  0, 27)  

* 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 16   0 31.92  -71 20.7   2.692   3.156   107   13.6      8.3 109.0   2:58 (342,-24)  
June 23   0 42.09  -71 41.4   2.668   3.156   109   13.6      6.7 118.6   3:00 (344,-23)  

* C/1999 T2 ( LINEAR )


It was much brighter visually, around 12 mag. However, it will fade out rapidly after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  13 16.94   23 11.5   3.285   3.625   101   14.2     21.1 221.3  21:02 ( 63, 68)  
June 23  13 10.67   21 21.1   3.427   3.661    95   14.3     19.1 215.1  21:04 ( 71, 60)  

* 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 16   2  3.01    6  0.8   1.928   1.572    54   14.3     43.3  74.2   2:58 (270, 10)  
June 23   2 22.44    7 20.1   1.901   1.578    56   14.3     42.4  75.1   3:00 (270, 13)  

* C/1999 T1 ( McNaught-Hartley )


Fading out gradually. It locates in the northern sky and the northern people can observe it until it disappears.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  17 12.71   76 33.7   2.846   2.851    80   14.3     10.0 243.5  23:31 (180, 48)  
June 23  16 56.39   75 53.3   2.927   2.929    80   14.5     10.3 227.8  22:47 (180, 49)  

* 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 16  14  5.44  -51 21.5   1.450   2.249   130   14.3     70.8 300.6  21:02 (  6,  3)  
June 23  13 27.35  -46 51.0   1.536   2.230   120   14.4     60.6 310.0  21:04 ( 18,  5)  

* 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 16  15 13.15  -21  5.0   5.434   6.306   146   14.7      9.4 321.9  21:33 (  0, 34)  
June 23  15 10.47  -20 14.0   5.474   6.278   139   14.7      8.7 325.4  21:04 (  0, 35)  

* 73P/Schwassmann-Wachmann 3


Appearing at dawn. No observations reported since 2001 Jan. 4.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16   2 33.67    7 30.4   2.554   2.002    46   15.0     24.7  72.1   2:58 (264,  5)  
June 23   2 44.36    8 20.2   2.553   2.065    50   15.2     22.9  73.0   3:00 (266,  9)  

* 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 16   5 28.71  -73 13.2  13.525  13.678    96   15.0      4.2  99.4   2:58 (343,-45)  
June 23   5 35.40  -73 19.4  13.563  13.722    96   15.0      4.2 104.7   3:00 (342,-44)  

* C/1999 K5 ( LINEAR )


It hardly faded out for about half of a year since the perihelion passage in 2000 June.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16   6 30.41  -21 59.8   5.193   4.562    47   15.2     14.0  60.6  21:02 ( 89,-39)  
June 23   6 36.49  -21 15.1   5.264   4.605    45   15.2     13.4  63.9  21:04 ( 93,-43)  

* 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 16   5  2.12   59 22.8   5.804   5.025    36   15.3     15.9  69.7   2:58 (205, 14)  
June 23   5 16.00   60  0.8   5.780   5.014    37   15.3     16.0  70.1   3:00 (206, 16)  

* 47P/Ashbrook-Jackson


Appearing at dawn. No observations reported since 2001 Feb. 3.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16   3 14.90   24 10.4   3.358   2.562    32   15.4     26.2  68.3   2:58 (245,  6)  
June 23   3 27.29   25 16.2   3.330   2.582    36   15.4     25.6  68.9   3:00 (246, 10)  

* 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 16   2 53.90   46 13.7   4.263   3.546    40   15.6     14.5  78.2   2:58 (228, 22)  
June 23   3  3.49   46 34.6   4.132   3.463    43   15.5     14.5  77.8   3:00 (229, 25)  

* 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 16  15 11.81    7 54.2   6.916   7.640   132   15.5      8.7 238.3  21:32 (  0, 63)  
June 23  15  8.49    7 20.7   7.006   7.657   126   15.6      8.3 233.3  21:04 (  2, 62)  

* C/2000 SV74 ( LINEAR )


Appearing at dawn. No observations reported since 2001 Jan. 15. 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 16   2  2.73   30 43.0   5.163   4.547    48   15.6     13.7  30.3   2:58 (248, 23)  
June 23   2  6.34   32  7.0   5.043   4.510    53   15.6     13.7  27.2   3:00 (249, 29)  

* 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 16  20 52.63    1  0.7   2.387   3.103   126   15.8     20.0 335.2   2:58 (352, 56)  
June 23  20 48.17    3  6.5   2.337   3.117   132   15.8     20.7 329.0   2:44 (  0, 58)  

* 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 16   1 38.57   10  4.9   2.178   1.859    58   15.9     36.5  72.5   2:58 (270, 17)  
June 23   1 55.11   11 19.4   2.119   1.850    60   15.8     36.2  73.5   3:00 (270, 21)  

* 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 16  11 37.74    9 21.2   3.505   3.585    86   15.8     10.4 124.1  21:02 ( 70, 41)  
June 23  11 42.10    8 38.8   3.606   3.589    80   15.9     11.7 122.5  21:04 ( 74, 36)  

* C/2000 K2 ( LINEAR )


Appearing at dawn. No observations reported since 2001 Jan. 15. It will fade out gradually then it will be fainter than 18 mag in November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16   1 33.37   11 24.1   3.986   3.573    59   16.3     14.5  83.1   2:58 (269, 19)  
June 23   1 39.95   11 34.2   3.948   3.624    64   16.4     13.3  85.0   3:00 (272, 24)  

* 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 16  13 30.16  -17 41.4   4.934   5.542   122   16.4      6.8 241.7  21:02 ( 21, 35)  
June 23  13 27.56  -18  4.7   5.013   5.521   115   16.4      5.8 233.4  21:04 ( 29, 31)  

* C/1997 BA6 ( Spacewatch )


Appearing at dawn. It will fade out gradually after this. It is now a bit brighter than this ephemeris.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  21 52.46   -4 21.8   5.494   6.008   115   16.4      6.9 306.9   2:58 (331, 47)  
June 23  21 49.63   -3 54.3   5.440   6.053   122   16.5      7.6 299.5   3:00 (342, 50)  

* 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 16  17 43.23  -16 59.6   9.763  10.773   173   16.7      4.0 273.6   0:07 (  0, 38)  
June 23  17 41.27  -16 58.1   9.781  10.786   171   16.7      4.0 272.6  23:33 (  0, 38)  

* 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 16  15 10.22   -6 47.0   1.976   2.838   140   17.0      8.8 222.4  21:30 (  0, 48)  
June 23  15  7.97   -7 34.2   2.054   2.858   134   17.1      7.9 207.3  21:04 (  1, 47)  

* C/1999 N4 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  14  4.17    8 12.4   5.630   6.186   119   17.2     11.4 266.7  21:02 ( 20, 62)  
June 23  13 59.12    8  5.9   5.760   6.209   111   17.2     10.1 263.1  21:04 ( 36, 58)  

* C/2000 K1 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
June 16  15 25.97   38 51.5   6.879   7.298   110   17.2      8.9 275.3  21:46 (180, 86)  
June 23  15 20.89   38 53.9   6.967   7.321   106   17.3      8.1 269.4  21:13 (180, 86)  

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