Weekly Information about Bright Comets (2001 July 14: North)

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Updated on July 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 )


Although it faded to 6 mag in early July, it brightened again to 4.5-5.0 mag on July 12. It must be brighter than this ephemeris.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14  22 28.33   13 57.9   0.311   1.219   124    5.8    130.5 295.5   3:03 (  0, 69)  
July 21  21 39.76   18 41.9   0.384   1.313   134    6.6     87.5 288.4   1:47 (  0, 74)  

* 19P/Borrelly


It locates high in the Southern Hemisphere. Appearing at dawn also in the Northern Hemisphere. It reaches to 8 mag in autumn. Now it is very diffused.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14   4 10.87    2  2.9   1.916   1.536    52   10.6     45.9  68.2   3:13 (273,  7)  
July 21   4 30.96    4  2.2   1.859   1.502    53   10.3     46.6  68.6   3:20 (273, 11)  

* 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)  
July 14   0 56.48  -21 49.9   2.848   3.278   106   12.3     26.6 195.9   3:13 (325, 25)  
July 21   0 52.01  -24 57.1   2.758   3.301   113   12.3     29.7 200.2   3:20 (335, 26)  

* 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)  
July 14   7 36.81   19 45.5   2.459   1.443     2   12.9     49.1 100.7  20:57 (133,-19)  
July 21   8  0.46   18 35.0   2.471   1.456     1   13.0     48.7 102.7   3:20 (229,-19)  

* 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)  
July 14  18 54.00  -28 25.7   4.923   5.924   168   13.3      6.8 272.1  23:23 (  0, 27)  
July 21  18 50.49  -28 23.2   4.947   5.922   162   13.3      6.4 274.0  22:52 (  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)  
July 14   0 54.16  -72 59.9   2.618   3.165   113   13.6      4.1 190.4   3:13 (350,-20)  
July 21   0 51.03  -73 27.3   2.610   3.170   114   13.6      4.9 219.7   3:20 (353,-20)  

* 51P/Harrington


KenIchi Kadota, Ageo, Japan, observed it at 15.1 mag on July 1.It will fade gradually after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14   3 18.58   10 33.5   1.825   1.616    61   14.6     38.7  78.8   3:13 (273, 23)  
July 21   3 36.34   11 22.0   1.800   1.635    64   14.7     37.2  80.1   3:20 (275, 27)  

* 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)  
July 14   2 14.95   36 36.8   4.657   4.400    69   14.8     14.0  15.4   3:13 (252, 47)  
July 21   2 16.82   38 13.1   4.523   4.365    74   14.7     14.2  10.5   3:20 (251, 54)  

* C/2001 K5 ( LINEAR )


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)  
July 14  15  5.38  -17 55.1   5.657   6.190   117   14.7      6.3 342.8  20:57 ( 24, 34)  
July 21  15  4.74  -17 14.6   5.736   6.162   110   14.7      5.6 352.2  20:52 ( 30, 32)  

* 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)  
July 14   3 32.32   47 39.6   3.692   3.207    54   14.9     14.2  77.1   3:13 (233, 36)  
July 21   3 41.85   48  1.5   3.532   3.120    58   14.7     13.9  76.9   3:20 (233, 40)  

* 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)  
July 14  13  0.00   16  6.8   3.879   3.775    76   14.7     14.7 195.3  20:57 ( 81, 40)  
July 21  12 58.57   14 29.3   4.031   3.814    70   14.8     13.8 188.6  20:52 ( 83, 34)  

* 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. It was only 7 arcmin from SN 2001cz (14.7 mag) on July 4.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14  12 31.48  -35  1.4   1.928   2.188    90   14.8     31.5 326.9  20:57 ( 45,  1)  
July 21  12 23.42  -32 13.6   2.079   2.180    81   15.0     24.6 331.3  20:52 ( 51, -2)  

* C/1999 T1 ( McNaught-Hartley )


It keeps 13 mag visually still now. 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)  
July 14  16 29.06   72 31.0   3.156   3.158    80   15.0     12.0 192.5  20:59 (180, 53)  
July 21  16 26.46   71  5.8   3.228   3.234    81   15.1     12.6 184.0  20:52 (177, 54)  

* 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 14   5 55.02  -73 53.4  13.692  13.852    96   15.1      4.3 119.9   3:13 (340,-39)  
July 21   6  1.26  -74  9.7  13.741  13.895    96   15.1      4.4 124.9   3:20 (341,-37)  

* C/1999 U4 ( Catalina-Skiff )


Getting higher in the morning sky. 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)  
July 14   6  0.22   61 50.9   5.677   4.985    43   15.2     16.3  71.7   3:13 (209, 22)  
July 21   6 15.75   62 25.8   5.632   4.976    45   15.2     16.3  72.3   3:20 (209, 24)  

* 16P/Brooks 2


Yusuke Ezaki observed it at 16.8 mag on July 14. It will keep the current brightness until October. 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)  
July 14   2 44.49   14 28.3   1.946   1.836    68   15.5     34.7  77.3   3:13 (274, 32)  
July 21   3  0.68   15 17.9   1.891   1.835    71   15.5     33.9  78.7   3:20 (276, 36)  

* P/2001 MD7 ( LINEAR )


New periodic comet. It locates in the evening sky until 2002 April and reaches to 13.7 mag in November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14  18 50.34  -12 43.8   1.043   2.045   166   15.7     19.3 242.5  23:19 (  0, 42)  
July 21  18 42.09  -13 51.2   1.004   1.989   159   15.5     19.9 238.8  22:43 (  0, 41)  

* 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)  
July 14   4  3.37   28 13.0   3.222   2.647    47   15.6     23.4  70.6   3:13 (251, 23)  
July 21   4 14.90   29  5.5   3.177   2.669    51   15.6     22.5  71.0   3:20 (252, 28)  

* 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)  
July 14  15  0.97    5 27.1   7.331   7.707   108   15.7      7.0 214.5  20:57 ( 39, 54)  
July 21  14 59.33    4 46.0   7.453   7.724   101   15.7      6.7 206.9  20:52 ( 46, 50)  

* C/2001 K3 ( Skiff )


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)  
July 14  20 29.50    8 52.2   2.267   3.165   146   15.8     21.1 313.9   1:03 (  0, 64)  
July 21  20 22.16   10 28.9   2.271   3.183   148   15.8     20.4 309.6   0:28 (  0, 65)  

* 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)  
July 14   3 11.99   10 14.6   2.511   2.249    63   15.8     17.5  75.9   3:13 (274, 24)  
July 21   3 19.61   10 41.8   2.485   2.308    68   16.0     15.5  76.9   3:20 (278, 30)  

* 61P/Shajn-Schaldach


Appearing at dawn. No observations reported since 200 Sept. 20.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14   4  8.57   16 43.0   2.925   2.375    48   16.2     27.2  82.6   3:13 (260, 16)  
July 21   4 21.60   17  4.7   2.873   2.385    51   16.2     26.5  84.0   3:20 (263, 20)  

* 44P/Reinmuth 2


Appearing at dawn. No observations reported since Aug. 23, 2000.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14   3 53.42   25 52.0   2.742   2.232    50   16.4     26.9  76.4   3:13 (254, 24)  
July 21   4  6.75   26 33.3   2.708   2.261    53   16.5     25.7  77.5   3:20 (256, 28)  

* C/1997 BA6 ( Spacewatch )


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)  
July 14  21 38.35   -2 48.1   5.336   6.190   144   16.5      9.6 285.4   2:11 (  0, 52)  
July 21  21 33.86   -2 31.6   5.326   6.235   151   16.6     10.1 282.3   1:40 (  0, 52)  

* C/2000 K2 ( LINEAR )


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)  
July 14   1 56.23   11 38.8   3.811   3.779    80   16.6      9.4  94.5   3:13 (285, 40)  
July 21   2  0.37   11 31.2   3.761   3.832    86   16.6      8.1 100.1   3:20 (292, 46)  

* 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)  
July 14  17 35.83  -16 56.5   9.918  10.826   151   16.7      3.3 269.4  22:05 (  0, 38)  
July 21  17 34.32  -16 57.0   9.991  10.839   145   16.8      2.9 267.8  21:36 (  0, 38)  

* C/2000 K1 ( LINEAR )


Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14  15  8.78   38 29.4   7.259   7.394    93   17.4      5.7 248.9  20:57 (108, 74)  
July 21  15  5.89   38 13.3   7.362   7.418    89   17.4      5.0 240.2  20:52 (106, 69)  

* C/2001 N2 ( LINEAR )


New comet. It will be 14.5 mag in 2002 July.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
July 14  23  0.35   39 21.4   4.630   4.945   102   17.8     14.1 294.2   3:13 (222, 84)  
July 21  22 51.97   39 58.1   4.494   4.899   107   17.7     15.5 287.7   2:58 (180, 85)  

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