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Post Info TOPIC: Comet 2007 S1 (Zhao)


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RE: Comet 2007 S1 (Zhao)
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Comet P/2007 S1 (Zhao) is at Perihelion (2.494 AU) in the constellation Cetus on the 10th May 2015



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Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase   Mag
2015 04 30    01 51 29.9 +07 23 08   3.4751  2.4952    11.3     4.5  19.7
2015 05 01    01 53 20.8 +07 32 42   3.4729  2.4950    11.7     4.7  19.7
2015 05 02    01 55 11.7 +07 42 12   3.4707  2.4949    12.2     4.9  19.7
2015 05 03    01 57 02.7 +07 51 39   3.4683  2.4947    12.7     5.1  19.7
2015 05 04    01 58 53.8 +08 01 03   3.4659  2.4946    13.1     5.3  19.7
2015 05 05    02 00 44.8 +08 10 23   3.4634  2.4945    13.6     5.4  19.7
2015 05 06    02 02 36.0 +08 19 41   3.4608  2.4945    14.1     5.6  19.7
2015 05 07    02 04 27.1 +08 28 54   3.4582  2.4944    14.5     5.8  19.7
2015 05 08    02 06 18.3 +08 38 05   3.4554  2.4944    15.0     6.0  19.7
2015 05 09    02 08 09.6 +08 47 12   3.4526  2.4944    15.5     6.2  19.7
2015 05 10    02 10 00.9 +08 56 15   3.4497  2.4943    15.9     6.4  19.7
2015 05 11    02 11 52.2 +09 05 15   3.4467  2.4944    16.4     6.6  19.7
2015 05 12    02 13 43.6 +09 14 12   3.4436  2.4944    16.9     6.8  19.7
2015 05 13    02 15 35.0 +09 23 04   3.4405  2.4944    17.3     6.9  19.7
2015 05 14    02 17 26.4 +09 31 53   3.4373  2.4945    17.8     7.1  19.7
2015 05 15    02 19 17.9 +09 40 38   3.4339  2.4946    18.3     7.3  19.6
2015 05 16    02 21 09.4 +09 49 19   3.4305  2.4946    18.8     7.5  19.6
2015 05 17    02 23 00.9 +09 57 56   3.4271  2.4947    19.2     7.7  19.6
2015 05 18    02 24 52.4 +10 06 30   3.4235  2.4949    19.7     7.9  19.6
2015 05 19    02 26 43.9 +10 14 59   3.4198  2.4950    20.2     8.0  19.6
2015 05 20    02 28 35.5 +10 23 24   3.4161  2.4952    20.7     8.2  19.6
2015 05 21    02 30 27.0 +10 31 45   3.4123  2.4953    21.1     8.4  19.6
2015 05 22    02 32 18.5 +10 40 02   3.4084  2.4955    21.6     8.6  19.6
2015 05 23    02 34 10.1 +10 48 14   3.4045  2.4957    22.1     8.8  19.6
2015 05 24    02 36 01.6 +10 56 23   3.4004  2.4960    22.6     9.0  19.6
2015 05 25    02 37 53.1 +11 04 26   3.3963  2.4962    23.1     9.1  19.6
2015 05 26    02 39 44.6 +11 12 26   3.3921  2.4964    23.5     9.3  19.6
2015 05 27    02 41 36.1 +11 20 21   3.3878  2.4967    24.0     9.5  19.6
2015 05 28    02 43 27.5 +11 28 12   3.3834  2.4970    24.5     9.7  19.6
2015 05 29    02 45 18.9 +11 35 58   3.3790  2.4973    25.0     9.9  19.6
2015 05 30    02 47 10.3 +11 43 40   3.3745  2.4976    25.5    10.0  19.6
2015 05 31    02 49 01.7 +11 51 17   3.3699  2.4980    25.9    10.2  19.6


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Comet P/2007 S1 (Zhao)
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Comet P/2007 S1 (Zhao) makes its closest approach to the Earth (1.962 AU) on the 21st August 2014



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Comet P/2007 S1 (Zhao) is at Opposition (1.977 AU) on the 11th August 2014 

Ephemeris

Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   Mag
2014 08 10    21 21 08.4 -14 51 12   1.9787  2.9923   178.9     0.4  19.2
2014 08 11    21 20 26.3 -14 56 26   1.9758  2.9893   179.4     0.2  19.2
2014 08 12    21 19 44.2 -15 01 41   1.9731  2.9863   178.5     0.5  19.2
2014 08 13    21 19 01.9 -15 06 56   1.9707  2.9832   177.4     0.9  19.2
2014 08 14    21 18 19.6 -15 12 12   1.9686  2.9802   176.3     1.3  19.2
2014 08 15    21 17 37.3 -15 17 27   1.9667  2.9772   175.2     1.6  19.2
2014 08 16    21 16 55.0 -15 22 42   1.9652  2.9742   174.0     2.0  19.2
2014 08 17    21 16 12.8 -15 27 56   1.9639  2.9712   172.9     2.4  19.2
2014 08 18    21 15 30.8 -15 33 10   1.9629  2.9682   171.7     2.8  19.2
2014 08 19    21 14 48.9 -15 38 22   1.9621  2.9652   170.6     3.2  19.2
2014 08 20    21 14 07.3 -15 43 32   1.9616  2.9622   169.4     3.6  19.2
2014 08 21    21 13 26.0 -15 48 41   1.9614  2.9593   168.3     4.0  19.2
2014 08 22    21 12 45.1 -15 53 47   1.9615  2.9563   167.1     4.4  19.2
2014 08 23    21 12 04.6 -15 58 51   1.9618  2.9533   166.0     4.8  19.2
2014 08 24    21 11 24.5 -16 03 53   1.9624  2.9503   164.9     5.1  19.2
2014 08 25    21 10 44.9 -16 08 52   1.9633  2.9474   163.7     5.5  19.2
2014 08 26    21 10 05.8 -16 13 47   1.9645  2.9444   162.6     5.9  19.2
2014 08 27    21 09 27.4 -16 18 39   1.9659  2.9415   161.5     6.3  19.2
2014 08 28    21 08 49.6 -16 23 28   1.9675  2.9385   160.3     6.6  19.2
2014 08 29    21 08 12.5 -16 28 13   1.9694  2.9356   159.2     7.0  19.1
2014 08 30    21 07 36.2 -16 32 53   1.9716  2.9326   158.1     7.4  19.1
2014 08 31    21 07 00.7 -16 37 30   1.9740  2.9297   156.9     7.8  19.1


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A newly-discovered comet has been named after Dr Zhao Haibin, the  Chinese astronomer who discovered the  object in the constellation  Cetus in mid-September
The comet P/2007 S1 (ZHAO)  has an orbital period of  7.46 years and an eccentricity  of  0.344.
Dr Zhao Haibin leads an NEO (Near Earth Object) research team at the Zijinshan Astronomical Observatory of the Chinese Academy of Sciences based in the eastern city of Nanjing.
 The comet,  marks the fifth  one discovered by the Zijinshan Astronomical Observatory.


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Haibin Zhao (Purple Mountain Observatory, XuYi Station) discovered on September 17, 2007 a new magnitude 18 comet on CCD images obtained with the 1.04 metre, f/1.8 Schmidt telescope.
The object was confirmed by  observations of LONEOS from the 8 to 15 September 2007 by Tim Spahr. Preliminary orbital elements of the comet P/2007 S1 (Zhao) indicate a perihelion passage on December 10, 2007 at a distance of 2.5 AU, and a 7.46 years period.

http://cfa-www.harvard.edu/mpec/K07/K07S36.html (MPEC 2007-S36) http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2007S1.html

CCC

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