Weekly Information about Bright Comets (2002 Apr. 13: South)

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Updated on April 13, 2002
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Best time and the azimuth, altitude (A,h) are at lat. 35 deg in the Southern Hemisphere.

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* C/2002 C1 ( Ikeya-Zhang )


The return of comet in 1661 with 340 year period. Strongly condensed with a stellar nucleus. Long tail over 3 degree is visible. It was reported as 3.0-3.5 mag by naked eye, brighter than this ephemeris.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  23 51.93   52 27.0   0.472   0.767    47    4.1    112.4 310.4   4:57 (221,-23)  
Apr. 20  22 25.37   59 27.1   0.428   0.882    61    4.5    125.8 291.1   5:02 (205,-14)  

* C/2002 G3 ( SOHO )


New comet. It will reach to 3 mag at the perihelion passage on Apr. 17. If it does not vanish at that time, it will appear at dawn as 11 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   1 44.99    3  2.6   1.186   0.235     7    7.6    114.3  45.8  19:03 ( 87,-11)  
Apr. 20   1 21.91   16 18.5   0.911   0.170     8    5.6    166.9 284.4   5:02 (261,-15)  

* C/2002 F1 ( Utsunomiya )


New comet. Though locating low now, it is strongly condensed and easy to see. It will be 6.5 mag in late April. In the Northern Hemisphere, it is observable only until mid April being very low in the morning sky. After the perihelion passage, it will be observable in the Southern Hemisphere, but it locates very low in the evening sky. It will locate high after August, but will be fainter than 15 mag at that time. It was 5.5 mag on Apr. 12, much brighter than this ephemeris.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   0 28.85   30  8.4   1.189   0.507    24    6.9    146.7  71.6   4:57 (245,-18)  
Apr. 20   1 50.34   32 55.8   1.183   0.445    21    6.3    151.2  90.0   5:02 (248,-28)  

* C/2001 OG108 ( LONEOS )


After it brightened rapidly and reached to 10 mag in February, it did not brightened more and kept 10 mag all over though it became closer to the earth. It may fade out very soon after this. It is observable all through a night in the Northern Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   8 35.23   80 19.9   0.568   1.101    84    9.9    169.7 164.8  19:16 (180,-24)  
Apr. 20   9 16.04   59 52.8   0.558   1.154    90   10.1    177.7 174.5  19:23 (180, -4)  

* C/2000 WM1 ( LINEAR )


It suddenly bursted out in late January and reached to 2.5 mag. Then it is fading rapidly, and now it is 9.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  18 59.47   11 29.3   1.260   1.668    94   10.1     49.1 337.1   4:57 (193, 43)  
Apr. 20  18 49.27   16 36.7   1.283   1.775   101   10.6     48.3 331.4   4:58 (180, 39)  

* C/2002 E2 ( Snyder-Murakami )


New comet. It will move northwards after this. It keeps observable until it fades out in the Northerm Hemisphere. It keeps brighter than 12 mag until May. It will approach to C/2002 C1 ( Ikeya-Zhang ) around May 1.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  19 23.08   36 53.3   1.373   1.628    84   10.3     74.0   4.6   4:57 (193, 17)  
Apr. 20  19 25.65   45 17.9   1.404   1.672    86   10.5     69.9   1.9   5:02 (186, 10)  

* 6P/d'Arrest


The condition in this return is bad. It is not observable until June in the Southern Hemisphere, until August in the Northern Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   0 57.57   -3 21.8   2.513   1.559    13   12.1     44.3  75.0   4:57 (278, -5)  
Apr. 20   1 17.27   -2  3.1   2.541   1.598    15   12.0     42.9  75.2   5:02 (275, -4)  

* C/2000 SV74 ( LINEAR )


It will be observable at 13 mag until September. It is fainter than 14 mag by CCD.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   0 27.19   66 51.0   3.963   3.548    58   12.9     18.9  31.4   4:57 (208,-32)  
Apr. 20   0 39.65   68 46.9   3.965   3.545    58   12.9     19.8  30.9   5:02 (205,-31)  

* 29P/Schwassmann-Wachmann 1


Takuo Kojima reported that it was in outburst at 14.4 mag on Mar. 28.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  20 58.65  -18 50.2   6.091   5.845    71   13.7      7.3  70.5   4:57 (256, 52)  
Apr. 20  21  1.82  -18 34.0   5.983   5.843    77   13.6      6.4  69.8   5:02 (248, 57)  

* 7P/Pons-Winnecke


It was as faint as 16.5 mag in mid March. It may reach only to 13.5 mag in May.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  19 17.12   -1  7.2   0.823   1.319    92   14.5     55.3 101.4   4:57 (204, 54)  
Apr. 20  19 42.76   -2 30.7   0.778   1.296    92   14.2     57.0 103.1   5:02 (202, 56)  

* C/2001 N2 ( LINEAR )


Getting higher in the morning sky. It will be 13 mag in June and July.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  20 30.17   17 25.1   3.143   2.986    71   14.7      9.2 311.6   4:57 (216, 29)  
Apr. 20  20 26.09   18  9.2   2.992   2.955    78   14.6     11.8 303.2   5:02 (206, 32)  

* 19P/Borrelly


Fading now. It is observable in good condition until to fade out.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  11 35.80   49  1.5   1.920   2.542   117   14.9     14.7 205.9  22:09 (180,  6)  
Apr. 20  11 32.14   47 24.3   2.019   2.591   113   15.1     15.0 195.6  21:38 (180,  8)  

* 65P/Gunn


It will be observable at 15 mag until August when it becomes low in the evening sky. It is brighter than this ephemeris recently, 14.5 mag even by CCD.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  11  4.54   20 24.8   2.504   3.288   134   15.0      6.5 262.4  21:38 (180, 35)  
Apr. 20  11  1.79   20 14.6   2.553   3.266   127   15.0      5.0 246.2  21:08 (180, 35)  

* C/1999 U4 ( Catalina-Skiff )


It is observable until autumn at 15 mag. It was reported as 14 mag visually, but as 16 mag by CCD, so there is a large difference.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   9 54.90   71 12.7   4.935   5.083    92   15.0     11.1 179.6  20:29 (180,-16)  
Apr. 20   9 55.78   69 53.5   5.007   5.097    89   15.1     11.6 174.2  20:02 (180,-15)  

* C/2001 HT50 ( LINEAR-NEAT )


It will be 11 mag in 2003 February. Although it was reported as 13.5 mag visually, it is fainter than this ephemeris recently, fainter than 16 mag by CCD.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  10  9.52   -6 30.1   4.428   5.149   131   15.1     16.3 297.9  20:43 (180, 61)  
Apr. 20  10  3.11   -5 37.5   4.474   5.098   123   15.1     14.8 299.7  20:09 (180, 61)  

* C/2001 K5 ( LINEAR )


It will be 15 mag in spring and summer.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  17  7.72    5 28.0   4.752   5.359   122   15.2     12.4 345.5   3:44 (180, 50)  
Apr. 20  17  5.95    6 52.3   4.667   5.345   128   15.1     12.8 340.0   3:15 (180, 48)  

* 15P/Finlay


It bursted out in early February and reached to 13.5 mag. Then it did not become so fainter. It must be brighter than this ephemeris. But the condition is worst. It always locates very low in the evening sky.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   3 11.89   19  0.6   2.167   1.364    27   15.2     53.4  72.7  19:03 (112, -2)  
Apr. 20   3 36.71   20 41.8   2.242   1.423    27   15.6     50.8  74.8  18:54 (114, -2)  

* 116P/Wild 4


It will be 10.5 mag in 2003 spring. It was a bit fainter than this ephemeris, around 16 mag recently.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   6  7.75   26 48.2   3.070   2.866    68   15.4     16.3  93.8  19:03 (147, 20)  
Apr. 20   6 16.59   26 39.8   3.132   2.840    64   15.3     17.6  94.2  18:54 (145, 19)  

* 22P/Kopff


The condition in this return is bad. We can observe it only until August before perihelion passage when it becomes to 13 mag in the evening sky.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  11 46.65    8 25.7   1.768   2.684   150   15.5     12.3 292.5  22:20 (180, 47)  
Apr. 20  11 41.69    8 54.5   1.777   2.642   142   15.4     10.1 290.1  21:47 (180, 46)  

* 28P/Neujmin 1


It will reach to 13 mag at the end of this year. In the northern hemisphere, it keeps low in the south after this.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  16  1.64  -38 23.0   2.405   3.185   134   15.7      6.8 214.8   2:38 (  0, 87)  
Apr. 20  15 58.64  -39  0.3   2.290   3.130   140   15.5      7.9 230.5   2:08 (  0, 86)  

* P/2001 MD7 ( LINEAR )


Fading rapidly after February. It will be fainter than 16 mag in May when it becomes low.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   5  3.95   17 20.3   2.431   2.010    53   15.7     34.8  76.9  19:03 (129, 19)  
Apr. 20   5 20.35   18 10.2   2.546   2.067    51   15.9     33.6  78.8  18:54 (129, 18)  

* 77P/Longmore


It is brighter than this ephemeris recently, 15.5 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  10 31.75   26 28.2   1.786   2.501   125   15.9     13.6 205.1  21:05 (180, 29)  
Apr. 20  10 29.53   24 58.7   1.837   2.485   119   15.9     13.5 192.1  20:36 (180, 30)  

* 2001 TX16


Asteroid with a cometary orbit of 6.8 year period. Fading now.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  10 26.51   25 17.5   0.923   1.707   124   16.0     23.6 137.6  21:01 (180, 30)  
Apr. 20  10 34.98   23 15.2   1.002   1.746   120   16.2     24.5 135.4  20:42 (180, 32)  

* 74P/Smirnova-Chernykh


It keeps brighter than 17 mag until August.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  15 57.16  -16 39.6   3.012   3.853   142   16.1      5.4 277.5   2:34 (180, 72)  
Apr. 20  15 54.16  -16 33.9   2.961   3.861   149   16.1      6.9 277.4   2:03 (180, 72)  

* C/1999 T2 ( LINEAR )


Fading. It will be about 18 mag in June when it becomes low in the evening.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  12 16.53  -13  8.6   4.585   5.551   162   16.8     15.2 275.9  22:49 (180, 68)  
Apr. 20  12  9.56  -12 57.2   4.672   5.600   155   16.8     14.1 276.8  22:15 (180, 68)  

* C/2001 B2 ( NEAT )


Fading very slowly. It was brighter than the ephemeris recently, reported around 16 mag.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   9 16.37   16 24.4   6.361   6.825   113   16.8      7.7 303.4  19:50 (180, 39)  
Apr. 20   9 13.56   16 52.1   6.511   6.856   105   16.8      6.3 305.6  19:20 (180, 38)  

* 95P/(2060) Chiron


It keeps 17 mag locating at the same altitude until October in the Northerm Hemisphere.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13  18 38.00  -16 42.2  11.068  11.346   103   17.1      0.7  26.1   4:57 (193, 71)  
Apr. 20  18 38.01  -16 37.6  10.970  11.359   110   17.1      0.7 335.7   4:47 (180, 72)  

* P/2001 TU80 ( LINEAR-NEAT )


It bursted out and reached to 15 mag in early January. It is getting fainter rather rapidly these days.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   8 50.23   24  1.8   1.697   2.189   105   17.2     17.4 106.4  19:25 (180, 31)  
Apr. 20   8 59.09   23 24.8   1.796   2.216   100   17.4     18.9 107.4  19:06 (180, 32)  

* 31P/Schwassmann-Wachmann 2


Already passed the peak and fading now.
Date(TT)  R.A. (2000) Decl.   Delta     r    Elong.  m1    Mot.(') p.a.  Best Time(A, h)  
Apr. 13   8 56.10   20 15.6   2.983   3.426   107   17.6      4.9 105.9  19:30 (180, 35)  
Apr. 20   8 58.90   20  4.1   3.081   3.429   101   17.6      6.8 106.4  19:05 (180, 35)  

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