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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-R49 : COMET C/2005 O2 (CHRISTENSEN)

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M.P.E.C. 2005-R49                                Issued 2005 Sept. 10, 13:56 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 of the International Astronomical Union by the
          Minor Planet Center, Smithsonian Astrophysical Observatory,
                          Cambridge, MA 02138, U.S.A.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                         COMET C/2005 O2 (CHRISTENSEN)

Observations:
    CK05O020  C2005 09 04.08107 03 05 18.31 -22 53 29.0          18.1 N ER049213
    CK05O020  C2005 09 04.09329 03 05 17.18 -22 53 46.1          18.1 N ER049213
    CK05O020  C2005 09 04.11140 03 05 15.51 -22 54 11.5          18.1 N ER049213
    CK05O020  C2005 09 04.12173 03 05 14.56 -22 54 26.3          18.1 N ER049213
    CK05O020  C2005 09 06.58246 03 01 21.52 -23 52 44.4          18.6 N ER049415
    CK05O020  C2005 09 06.58678 03 01 21.14 -23 52 51.0          18.4 N ER049415
    CK05O020  C2005 09 08.45324 02 58 12.52 -24 37 40.5          18.0 T ER049673
    CK05O020  C2005 09 08.45567 02 58 12.28 -24 37 46.7                 ER049673
    CK05O020  C2005 09 08.46192 02 58 11.59 -24 37 55.0                 ER049673
    CK05O020  C2005 09 08.46806 02 58 10.93 -24 38 03.8                 ER049673
    CK05O020  C2005 09 08.63843 02 57 53.33 -24 42 04.9          18.0 T ER049423
    CK05O020  C2005 09 08.66447 02 57 50.59 -24 42 43.3          18.2 T ER049423

Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain + CCD.
415 Kambah, near Canberra.  Observer D. Herald.  0.36-m f/3.9
    Schmidt-Cassegrain + CCD.
423 North Ryde.  Observer S. G. McAndrew.  0.20-m f/4 hyperbolic astrograph
    + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.6-m f/16
    Cassegrain + CCD.

Orbital elements:
    C/2005 O2 (Christensen)
T 2005 Sept. 8.6380 TT                                  MPC
q   3.333591             (2000.0)            P               Q
n   0.0084739      Peri.  263.8774      +0.8163740      +0.2755521
a  23.827607       Node   280.7725      +0.4464585      -0.8585935
e   0.860095       Incl.  148.8920      -0.3663444      -0.4323057
P 116
From 65 observations 2005 July 31-Sept. 8.

Ephemeris:
    C/2005 O2 (Christensen)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2005 09 07    03 00.67   -24 02.7    2.710    3.334   120.3    15.1  16.9
2005 09 17    02 41.63   -28 04.8    2.605    3.334   129.3    13.5  16.8
2005 09 27    02 17.65   -31 58.1    2.547    3.337   135.6    12.1  16.8
2005 10 07    01 49.43   -35 18.6    2.542    3.343   137.0    11.8  16.8
2005 10 17    01 18.83   -37 44.9    2.590    3.350   133.0    12.6  16.8
2005 10 27    00 48.52   -39 07.5    2.688    3.360   125.1    14.0  16.9

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-R49

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