Weekly Information about Bright Comets (2001 Aug. 25: North)

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Updated on September 1, 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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* 19P/Borrelly


It reaches to 8 mag in autumn. But it is 1.5 mag fainter than this ephemeris recently.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   6 17.97   13 43.6   1.618   1.379    57    9.0     49.5  71.2   3:57 (275, 31)  
Sept. 1   6 40.69   15 32.8   1.578   1.368    59    8.9     49.8  71.9   4:04 (275, 34)  

* C/2001 Q3 ( SOHO )


New comet. It must have disappeared at the perihelion passage.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  10 14.90   13 58.9   0.904   0.119     3    9.0    264.4 168.8   3:57 (239,-15)  
Sept. 1  10 42.77   19  8.6   1.236   0.309    10   13.9    100.0  30.9  19:54 (123,-10)  

* C/2001 A2 ( LINEAR )


Fading as expected. Extremely diffused.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  20  6.82   19 39.5   0.922   1.793   136    9.9     13.1 232.6  21:51 (  0, 75)  
Sept. 1  20  3.08   18 42.1   1.052   1.888   132   10.4      9.7 210.8  21:20 (  0, 74)  

* P/2001 Q2 ( Petriew )


New periodic comet. It is bright as 10 mag visually. It will be observable visually in the morning sky until November.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   6  8.69   25 46.7   0.890   0.955    59   11.0     75.7 107.7   3:57 (263, 39)  
Sept. 1   6 44.12   22 53.6   0.926   0.948    58   11.1     71.2 111.1   4:04 (266, 37)  

* C/1999 Y1 ( LINEAR )


It locates high in the Southern Hemisphere. But it will not be observable soon in the Northern Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   0  0.16  -42 21.1   2.587   3.432   141   12.4     37.3 222.1   1:48 (  0, 13)  
Sept. 1  23 43.36  -45 22.8   2.622   3.462   140   12.5     36.0 227.5   1:04 (  0, 10)  

* 29P/Schwassmann-Wachmann 1


Mitsunori Tsumura reported it is in outburst at 12.0 mag on Aug. 13.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  18 38.52  -27 52.1   5.253   5.911   126   13.4      2.4 300.6  20:23 (  0, 27)  
Sept. 1  18 37.72  -27 43.2   5.344   5.909   119   13.4      1.6 324.7  19:55 (  0, 27)  

* C/2000 WM1 ( LINEAR )


The brightening is slower than expected. It reaches to 6.5 mag in winter.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   4 26.64   49 47.2   2.654   2.670    79   13.9     11.6  75.7   3:57 (229, 61)  
Sept. 1   4 34.46   50  6.5   2.467   2.577    84   13.6     10.7  75.3   4:04 (224, 65)  

* 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)  
Aug. 25  23 41.65  -73 35.7   2.647   3.220   115   13.7     12.7 295.1   1:30 (  0,-19)  
Sept. 1  23 23.04  -72 47.1   2.673   3.235   115   13.7     14.2 306.1   0:44 (  0,-18)  

* 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)  
Aug. 25   9 48.47   10 39.1   2.574   1.574     6   14.0     44.4 110.2   3:57 (247,-13)  
Sept. 1  10  7.87    8 50.2   2.600   1.608     8   14.2     43.2 111.2   4:04 (251,-11)  

* C/2000 SV74 ( LINEAR )


It will be observable brighter than 15 mag until the end of 2002. It is brighter than 14.0 mag visually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   2 13.14   46 58.1   3.870   4.194   101   14.2     16.6 340.9   3:57 (183, 78)  
Sept. 1   2  8.62   48 47.6   3.753   4.162   107   14.1     17.3 334.3   3:28 (180, 76)  

* P/2001 MD7 ( LINEAR )


It reaches to 13.7 mag in November. It locates in the evening sky until 2002 April.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  18 15.84  -21  0.7   0.957   1.720   121   14.8     13.0 183.4  20:05 (  1, 34)  
Sept. 1  18 16.72  -22 30.5   0.964   1.667   115   14.6     13.4 161.5  19:54 (  6, 32)  

* 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)  
Aug. 25   7 37.80   65  2.7   5.357   4.941    60   15.1     15.8  74.8   3:57 (211, 35)  
Sept. 1   7 54.74   65 30.7   5.295   4.936    63   15.1     15.6  75.1   4:04 (210, 37)  

* 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. 25   6 27.90  -76  2.7  14.022  14.111    93   15.2      4.4 150.5   3:57 (346,-28)  
Sept. 1   6 31.84  -76 30.4  14.084  14.154    91   15.3      4.4 155.9   4:04 (347,-27)  

* C/1997 BA6 ( Spacewatch )


It was 15 mag in July, 1.5 mag brighter than expected.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  21 10.10   -1 46.5   5.498   6.464   161   15.3      9.6 273.4  22:54 (  0, 53)  
Sept. 1  21  5.80   -1 43.2   5.579   6.510   155   15.3      8.9 272.5  22:22 (  0, 53)  

* 16P/Brooks 2


It will keep the current brightness until October.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   4 15.42   17 31.0   1.623   1.863    86   15.3     27.3  87.7   3:57 (294, 57)  
Sept. 1   4 28.30   17 34.8   1.571   1.874    90   15.3     25.3  89.9   4:04 (300, 61)  

* 51P/Harrington


Fading. 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)  
Aug. 25   4 53.97   13 29.0   1.667   1.765    78   15.5     27.5  87.4   3:57 (290, 47)  
Sept. 1   5  6.61   13 34.7   1.636   1.797    81   15.7     25.1  88.9   4:04 (295, 52)  

* 47P/Ashbrook-Jackson


It must be bright enough, but no observations reported since 2001 Feb. 3.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   5  6.18   32 50.4   2.900   2.788    73   15.9     16.9  70.0   3:57 (261, 54)  
Sept. 1   5 14.65   33 30.2   2.836   2.812    78   15.9     15.5  68.7   4:04 (262, 59)  

* C/1999 J2 ( Skiff )


Now it is low in the evening sky. It will appear again at dawn at 16.4 mag in late December.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  14 57.54    1 11.4   8.089   7.813    70   16.0      6.3 167.9  20:05 ( 66, 32)  
Sept. 1  14 58.33    0 28.4   8.212   7.831    64   16.0      6.5 161.5  19:54 ( 68, 28)  

* C/2001 K3 ( Skiff )


It will fade out after this and be fainter than 18 mag in December.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  19 49.27   15 24.9   2.495   3.291   135   16.2     10.7 293.7  21:33 (  0, 70)  
Sept. 1  19 45.07   15 50.5   2.575   3.317   130   16.3      8.1 292.0  21:02 (  0, 71)  

* 61P/Shajn-Schaldach


It must be bright enough, but no observations reported since 200 Sept. 20.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   5 20.89   17 40.1   2.577   2.448    71   16.3     21.6  91.5   3:57 (280, 44)  
Sept. 1   5 31.11   17 34.1   2.512   2.463    75   16.3     20.2  93.1   4:04 (284, 49)  

* C/1999 T1 ( McNaught-Hartley )


Fading gradually. It locates in the northern sky and the northern people can observe it until it disappears. It keeps still 14.0 mag visually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25  16 43.14   63  5.8   3.579   3.607    83   16.3     15.6 155.6  20:05 (159, 58)  
Sept. 1  16 50.18   61 26.8   3.650   3.680    83   16.5     16.0 151.5  19:54 (155, 59)  

* 44P/Reinmuth 2


Fading. It will be fainter than 18 mag in January.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   5  4.83   28 51.2   2.488   2.415    74   16.7     18.6  81.9   3:57 (267, 53)  
Sept. 1   5 14.19   29  7.8   2.435   2.447    78   16.8     16.8  82.5   4:04 (270, 58)  

* 73P/Schwassmann-Wachmann 3


KenIchi Kadota, Ageo, Japan, observed it as 16.8 mag on July 16. 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)  
Aug. 25   3 43.09   11 44.2   2.293   2.594    95   16.8      4.0  87.6   3:57 (312, 59)  
Sept. 1   3 44.34   11 43.3   2.248   2.648   101   16.9      1.3 108.5   4:04 (326, 63)  

* 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)  
Aug. 25  21 52.22   40  7.8   3.760   4.463   128   16.9     23.2 257.1  23:35 (180, 85)  
Sept. 1  21 38.39   39 22.4   3.694   4.412   130   16.8     24.1 251.5  22:54 (180, 86)  

* 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)  
Aug. 25   2  9.98    9 40.8   3.522   4.097   118   16.9      4.9 180.5   3:57 (  0, 65)  
Sept. 1   2  9.57    9  4.7   3.487   4.151   125   17.0      5.7 196.8   3:29 (  0, 64)  

* 2001 OG108


New asteroid with 50-year period. It closes to the earth down to 0.55 AU in 2001 April and reaches to 14 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   1 35.11   15 10.3   2.282   2.970   124   17.2     16.1 308.6   3:23 (  0, 70)  
Sept. 1   1 27.99   16 21.4   2.122   2.895   131   16.9     19.8 301.4   2:48 (  0, 71)  

* P/2001 Q5 ( LINEAR-NEAT )


New periodic comet. It will keep 17 mag until late October, but then fades out.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   2  6.27   22 22.5   1.496   2.124   114   17.1     12.6  29.4   3:53 (  0, 77)  
Sept. 1   2  8.63   23 36.1   1.446   2.139   120   17.1     10.5  17.3   3:28 (  0, 79)  

* C/1999 K8 ( LINEAR )


Fading slowly. It will be fainter than 18 mag at the end of this year.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   4 26.18  -15 33.0   5.682   5.777    90   17.2      9.7 147.6   3:57 (321, 30)  
Sept. 1   4 28.45  -16 31.6   5.633   5.814    95   17.2      9.5 154.3   4:04 (330, 33)  

* C/2001 Q6 ( NEAT )


New comet. It will be at opposition and reach to 15.5 mag in October.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   3 32.78    7 30.6   1.304   1.770    98   17.6     36.3  19.5   3:57 (321, 57)  
Sept. 1   3 38.10   11 53.1   1.176   1.719   103   17.2     42.3  14.0   4:04 (329, 64)  

* 2000 EJ37


Asteroid with 10-year period. Fading gradually.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Aug. 25   3 52.00   13 54.9   2.568   2.809    92   17.9      7.5 108.0   3:57 (306, 59)  
Sept. 1   3 54.88   13 36.4   2.524   2.862    99   17.9      5.6 121.5   4:04 (319, 63)  

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