Weekly Information about Bright Comets (2001 Mar. 10: North)

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Updated on March 11, 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/1999 T1 ( McNaught-Hartley )


It keeps brighter than 11 mag until late April.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  17 57.84   48  6.6   1.509   1.763    87    9.3     48.6  27.1   4:54 (229, 65)  
Mar. 17  18 12.76   52 51.4   1.594   1.838    87    9.6     42.4  25.4   4:44 (219, 64)  

* 73P/Schwassmann-Wachmann 3


Not observable. It will appear at dawn as 16 mag in July.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  22 32.83  -15 27.5   2.028   1.111    16    9.9     57.6  71.6   4:54 (279,-14)  
Mar. 17  22 58.31  -13 17.8   2.081   1.166    16   10.3     54.4  70.1   4:44 (276,-15)  

* 45P/Honda-Mrkos-Pajdusakova


Not observable before the perihelion passage. It will appear at dusk in April at 10 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  23 35.09   -4 33.9   1.661   0.673     3   11.9     85.6  66.1  19:26 ( 95,-15)  
Mar. 17   0 13.44   -0 14.4   1.572   0.595     6   10.2     94.5  65.4  19:32 ( 98,-12)  

* C/1999 Y1 ( LINEAR )


Not observable. It will appear again at dawn in June. 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)  
Mar. 10   0 14.65    1 12.3   4.046   3.094    14   12.7     10.2 121.2  19:26 ( 94, -4)  
Mar. 17   0 18.77    0 36.0   4.073   3.092     8   12.7     10.3 119.8  19:32 ( 98,-11)  

* C/1999 T2 ( LINEAR )


It is observable as 13.5 mag until May.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  16 39.18   30 10.0   2.865   3.210   101   13.4     19.1 297.6   4:54 (301, 81)  
Mar. 17  16 29.02   31 11.6   2.793   3.232   107   13.3     22.2 293.0   4:44 (338, 86)  

* 24P/Schaumasse


It became brighter than 15 mag in late February. It will be 11.5 mag in April and May.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   3 12.79   19 53.8   1.551   1.390    61   14.0     39.4  63.7  19:26 ( 86, 43)  
Mar. 17   3 31.24   21 54.8   1.547   1.348    59   13.5     42.1  65.9  19:32 ( 90, 40)  

* 29P/Schwassmann-Wachmann 1


Appearing at dawn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  19  2.66  -28  9.1   6.307   5.968    65   13.8      7.8  85.7   4:54 (320, 14)  
Mar. 17  19  6.58  -28  5.3   6.200   5.966    71   13.8      7.0  85.9   4:44 (323, 16)  

* 110P/Hartley 3


Seems to be fading although it is ahead of the perihelion passage.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   4 28.86   24 57.0   2.449   2.477    79   14.1     20.2  93.6  19:26 ( 79, 60)  
Mar. 17   4 39.53   24 48.4   2.533   2.476    75   14.2     21.3  93.1  19:32 ( 83, 56)  

* 2000 PN9


Near-earth asteroid. It reached to 13 mag in early March and now it is fading.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  15 14.08   57 15.9   0.141   1.050   110   14.2    186.0 324.7   4:06 (180, 68)  
Mar. 17  14  1.87   65 49.7   0.256   1.114   111   15.4     56.9 304.3   2:26 (180, 59)  

* C/2000 CT54 ( LINEAR )


Although it reaches to 13.5 mag in 2001 summer, only southern people can observe it.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  19 16.36  -65 24.4   3.427   3.304    74   14.4     23.4 112.4   4:54 (341,-17)  
Mar. 17  19 41.20  -66 22.6   3.351   3.285    77   14.3     23.1 110.3   4:44 (341,-18)  

* C/1999 K5 ( LINEAR )


It hardly faded out since the perihelion passage in 2000 June.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   5 11.32  -46 27.1   3.959   4.002    85   14.3     23.3  12.1  19:26 ( 15,  6)  
Mar. 17   5 14.96  -43 50.4   4.033   4.039    83   14.4     22.8  15.7  19:32 ( 21,  7)  

* 47P/Ashbrook-Jackson


Not observable. It will appear at dawn in July as 15.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   0 16.83    3 24.1   3.288   2.348    15   14.5     31.0  61.3  19:26 ( 96, -2)  
Mar. 17   0 29.53    5  7.6   3.320   2.358    12   14.5     30.9  61.5  19:32 (100, -6)  

* C/2001 A2 ( LINEAR )


It will approach to the earth and reach to 10 mag in June and July.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   6 25.59   -1  1.9   0.961   1.560   105   14.8     27.6 235.7  19:26 (  6, 54)  
Mar. 17   6 16.12   -2 50.0   0.956   1.464    97   14.6     23.5 229.1  19:32 ( 23, 50)  

* 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)  
Mar. 10   4 16.62  -76 19.1  13.158  13.059    82   14.8      4.0  11.6  19:26 (  9,-24)  
Mar. 17   4 18.65  -75 52.0  13.182  13.104    83   14.8      4.0  18.8  19:32 ( 11,-24)  

* C/2000 K2 ( LINEAR )


It does not start fading after perihelion passage, still keeps 14 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  23 18.38    3 55.9   3.899   2.919     8   14.9     26.2  76.5   4:54 (256,-13)  
Mar. 17  23 30.16    4 38.6   3.944   2.960     7   15.0     25.6  76.2   4:44 (256,-11)  

* 74P/Smirnova-Chernykh


It is observable in good condition as 15 mag from February to April.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  11 50.28   11  3.8   2.569   3.552   170   15.1     10.0 294.4   0:40 (  0, 66)  
Mar. 17  11 45.87   11 31.4   2.569   3.553   169   15.1     10.0 291.7   0:09 (  0, 66)  

* 41P/Tuttle-Giacobini-Kresak


It was very diffused and hard to see in mid January. No observation has been reported since Feb. 1.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  20  4.40  -14 24.1   1.740   1.331    49   15.2     41.6  80.4   4:54 (300, 15)  
Mar. 17  20 23.45  -13 33.8   1.760   1.385    51   15.9     38.9  79.2   4:44 (299, 15)  

* C/1999 U4 ( Catalina-Skiff )


Although it will be lower after this for a while, 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)  
Mar. 10   2 40.20   52  5.3   5.487   5.235    70   15.4      8.4  75.0  19:26 (131, 45)  
Mar. 17   2 46.69   52 22.2   5.548   5.216    65   15.4      9.3  73.4  19:32 (132, 41)  

* C/1999 J2 ( Skiff )


It is observable as 15.5 mag until 2001 autumn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  16  3.00   10 24.3   7.037   7.435   109   15.4      3.3 277.5   4:52 (  0, 65)  
Mar. 17  16  1.18   10 27.3   6.954   7.448   116   15.4      4.4 275.5   4:23 (  0, 65)  

* C/2001 B2 ( NEAT )


Because it is far away, it keeps 16 mag until May.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  11 17.70  -16 37.5   4.550   5.489   159   15.7     20.2 302.0   0:08 (  0, 38)  
Mar. 17  11  9.45  -15 20.3   4.553   5.503   160   15.7     20.3 304.0  23:27 (  0, 40)  

* P/1999 WJ7 ( Korlevic )


It bursted out in mid February and reached to 15 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   9 59.64    9 20.1   2.803   3.748   159   15.8      8.2 289.5  22:46 (  0, 64)  
Mar. 17   9 56.26    9 38.1   2.862   3.765   151   15.9      6.9 290.1  22:15 (  0, 65)  

* C/2000 W1 ( Utsunomiya-Jones )


It was reported as a 15-mag extremely diffused object in mid February.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  14 22.03  -13 43.5   0.832   1.667   131   15.9    107.3 282.6   3:13 (  0, 41)  
Mar. 17  13 31.70  -10 34.7   0.846   1.784   151   16.4    108.0 285.6   1:56 (  0, 44)  

* C/2000 K1 ( LINEAR )


Because it is far away, it keeps brighter than 17 mag until June.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  16 32.95   26 47.6   6.703   6.988   102   16.6     11.4 344.7   4:54 (322, 80)  
Mar. 17  16 31.07   28  4.6   6.647   7.009   107   16.6     11.8 339.5   4:44 (344, 83)  

* 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)  
Mar. 10  14 35.29  -12 46.0   5.173   5.848   128   16.7      7.1 238.2   3:25 (  0, 42)  
Mar. 17  14 32.08  -13 11.7   5.060   5.822   136   16.7      8.2 243.9   2:54 (  0, 42)  

* C/2000 Y2


It keeps 17 mag until late March.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   9 13.34    4 54.8   1.878   2.772   148   16.8      6.7   2.1  22:00 (  0, 60)  
Mar. 17   9 13.92    5 40.4   1.920   2.769   141   16.8      6.7  19.6  21:33 (  0, 61)  

* 95P/(2060) Chiron


Appearing at dawn.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  17 52.77  -17 53.5  10.685  10.580    81   16.8      2.7  77.1   4:54 (330, 31)  
Mar. 17  17 53.93  -17 49.2  10.582  10.593    87   16.8      2.1  72.6   4:44 (334, 33)  

* C/1999 H3 ( LINEAR )


The condition is good in winter and spring.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   9 56.93    9 22.3   5.113   6.048   158   16.9     13.6 271.5  22:43 (  0, 64)  
Mar. 17   9 50.76    9 24.1   5.211   6.093   150   16.9     12.5 270.7  22:09 (  0, 64)  

* P/2000 WT168


New comet. It will fade out after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   8  4.94  -10  9.9   0.963   1.766   129   16.9      4.3 110.4  20:52 (  0, 45)  
Mar. 17   8  7.85  -10 16.3   0.999   1.763   124   17.0      8.3  93.1  20:27 (  0, 45)  

* 70P/Kojima


It will fade out after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  13 14.08    2 41.4   1.514   2.435   151   16.9     10.1 309.2   2:04 (  0, 58)  
Mar. 17  13  9.95    3 26.5   1.508   2.464   159   17.0     11.7 303.4   1:32 (  0, 58)  

* C/2001 A1 ( LINEAR )


It will fade out rapidly after that.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  10  7.70   34  8.6   2.203   3.074   145   17.1     25.1 232.0  22:53 (  0, 89)  
Mar. 17   9 57.48   32 17.3   2.289   3.115   139   17.2     23.3 226.2  22:16 (  0, 87)  

* P/2001 CV8 ( LINEAR )


It will be fainter than 18 mag in May.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  10 33.00   14 53.2   1.181   2.153   163   17.2     10.5 252.4  23:19 (  0, 70)  
Mar. 17  10 28.61   14 27.7   1.214   2.164   156   17.3      9.0 243.2  22:47 (  0, 69)  

* 65P/Gunn


Although it is around the aphelion now, it is observable as 17 mag in good condition from December to March.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   7 36.01   31 29.0   3.720   4.312   120   17.3      2.7 250.2  20:23 (  0, 86)  
Mar. 17   7 35.07   31 21.2   3.802   4.299   113   17.3      1.6 213.8  19:54 (  0, 86)  

* (10199) Chariklo


A Centaur asteroid. The perihelion passage is in 2004. It will keep the current brightness over 10 years after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10  10  8.37   -5 12.8  12.287  13.222   159   17.5      3.4 288.4  22:55 (  0, 50)  
Mar. 17  10  6.91   -5  5.0  12.317  13.220   154   17.5      3.2 290.9  22:26 (  0, 50)  

* C/2000 U5 ( LINEAR )


Fading now. It will be fainter than 18 mag in late March.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Mar. 10   3 44.45   18 52.5   4.897   4.629    68   17.6      8.6  41.6  19:26 ( 79, 48)  
Mar. 17   3 47.50   19 36.8   5.065   4.690    62   17.7      9.1  46.5  19:32 ( 85, 42)  

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