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Minor Planet Center

MPEC 2008-P21 : COMET C/2008 O2 (McNAUGHT)

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M.P.E.C. 2008-P21                                Issued 2008 Aug. 4, 22:43 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.

             Prepared using the Tamkin Foundation Computer Network

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

                          COMET C/2008 O2 (McNAUGHT)

Observations:
    CK08O020  C2008 08 01.18833 21 28 48.41 -17 05 11.5          17.1 N EP021682
    CK08O020  C2008 08 01.41936 21 28 39.41 -17 05 28.3          17.9 N EP021682
    CK08O020  C2008 08 01.94555 21 28 19.57 -17 06 07.2          17.7 N EP021213
    CK08O020  C2008 08 01.94894 21 28 19.44 -17 06 07.6          17.6 N EP021213
    CK08O020  C2008 08 02.06832 21 28 14.45 -17 06 16.3          18.1 N EP021J47
    CK08O020  C2008 08 02.07673 21 28 14.39 -17 06 16.3          18.0 N EP021J47
    CK08O020  C2008 08 02.08455 21 28 14.11 -17 06 17.1          17.9 N EP021J47
    CK08O020  C2008 08 02.24911 21 28 07.92 -17 06 30.7          18.4 N EP021H55
    CK08O020  C2008 08 02.29633 21 28 06.07 -17 06 34.3          18.5 N EP021H55
    CK08O020  C2008 08 02.53512 21 27 56.92 -17 06 48.9          17.9 T EP021423
    CK08O020  C2008 08 02.56041 21 27 56.11 -17 06 54.1                 EP021367
    CK08O020  C2008 08 02.56709 21 27 55.63 -17 06 51.4          18.3 T EP021423
    CK08O020  C2008 08 02.57291 21 27 55.52 -17 06 55.5          17.3 N EP021367
    CK08O020  C2008 08 02.59958 21 27 54.43 -17 06 55.3          17.4 T EP021349
    CK08O020  C2008 08 02.60197 21 27 54.34 -17 06 55.4                 EP021349
    CK08O020  C2008 08 02.93553 21 27 41.63 -17 07 22.6                 EP021J95
    CK08O020  C2008 08 02.93942 21 27 41.48 -17 07 22.8                 EP021J95
    CK08O020  C2008 08 02.94329 21 27 41.36 -17 07 23.2          18.2 N EP021J95
    CK08O020  C2008 08 03.58244 21 27 16.74 -17 08 09.6          18.4 N EP021372
    CK08O020  C2008 08 03.58630 21 27 16.58 -17 08 09.6          18.1 N EP021372
    CK08O020  C2008 08 03.59236 21 27 16.33 -17 08 10.2          18.2 N EP021372
    CK08O020  C2008 08 03.96828 21 27 01.69 -17 08 39.3          18.2 T EP021215
    CK08O020  C2008 08 03.96934 21 27 01.67 -17 08 39.7          18.2 T EP021215
    CK08O020  C2008 08 03.97039 21 27 01.63 -17 08 40.0          18.1 T EP021215

Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/5 Schmidt-Cassegrain + CCD.
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
367 Yatsuka.  Observer H. Abe.  0.26-m f/6.0 reflector + CCD.
372 Geisei.  Observers T. Seki, K. Muraoka, S. Shimomoto.  0.70-m f/7
    reflector + CCD.
423 North Ryde.  Observer S. G. McAndrew.  0.20-m f/4 hyperbolic astrograph
    + CCD.
682 Kanab.  Observer E. Sheridan.  0.36-m f/5.5 Schmidt-Cassegrain + CCD.
H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
    Measurer S. Foglia.  0.81-m f/4.0 astrograph + CCD.
J47 Observatorio Nazaret.  Observer G. Muler.  0.30-m Schmidt-Cassegrain + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.

Orbital elements:
    C/2008 O2 (McNaught)
T 2009 Nov. 26.530 TT                                   MPC
q   1.23066              (2000.0)            P               Q
                   Peri.  121.815       +0.056879       -0.938407
                   Node   320.124       +0.637190       +0.296927
e   1.0            Incl.   32.113       +0.768605       -0.176714
From 95 observations 2008 July 28-Aug. 3.

Ephemeris:
    C/2008 O2 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2008 08 02    21 28.29   -17 06.2    4.775    5.779   170.8     1.6  17.5
2008 08 12    21 21.71   -17 18.4    4.676    5.689   177.2     0.5  17.4
2008 08 22    21 14.93   -17 29.4    4.609    5.598   166.6     2.4  17.3
2008 09 01    21 08.29   -17 37.8    4.573    5.507   155.4     4.4  17.2
2008 09 11    21 02.18   -17 42.5    4.566    5.415   144.3     6.2  17.1
2008 09 21    20 56.93   -17 42.7    4.583    5.323   133.4     7.9  17.1

     Further observations of this comet are desirable.
     Further observations of comet C/2008 O3 are very desirable.

Brian G. Marsden             (C) Copyright 2008 MPC           M.P.E.C. 2008-P21

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MPEC number:

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