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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-O08 : COMET C/2005 L3 (McNAUGHT)

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M.P.E.C. 2005-O08                                Issued 2005 July 18, 00:28 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 L3 (McNAUGHT)

Observations:
    CK05L030  C2005 07 03.65769 21 19 42.26 -34 14 01.9                 EO008413
    CK05L030  C2005 07 03.65914 21 19 42.20 -34 14 02.2                 EO008413
    CK05L030  C2005 07 03.66120 21 19 42.10 -34 14 02.3                 EO008413
    CK05L030  C2005 07 05.60729 21 18 20.30 -34 18 25.5          17.4 T EO008E12
    CK05L030  C2005 07 05.61552 21 18 19.94 -34 18 25.6          17.5 T EO008E12
    CK05L030  C2005 07 05.62384 21 18 19.58 -34 18 27.2          17.7 T EO008E12
    CK05L030  C2005 07 05.63228 21 18 19.22 -34 18 28.0          17.4 T EO008E12
    CK05L030  C2005 07 15.54481 21 10 54.23 -34 39 15.0          18.5 N EO008415
    CK05L030  C2005 07 15.54740 21 10 54.11 -34 39 15.2          17.9 N EO008415
    CK05L030  C2005 07 15.54999 21 10 53.96 -34 39 15.1          18.5 N EO008415

Observer details:
413 Siding Spring.  Observer R. H. McNaught.  1.0-m f/8 reflector + CCD.
415 Kambah, near Canberra.  Observer D. Herald.  0.36-m f/3.9
    Schmidt-Cassegrain + CCD.
E12 Siding Spring Survey.  Observer E. J. Christensen.  Measurers
    E. C. Beshore, C. M. Casey, E. J. Christensen, G. J. Garradd, A. D. Grauer,
    R. E. Hill, S. M. Larson, R. H. McNaught.  0.5-m Uppsala Schmidt + CCD.

Orbital elements:
    C/2005 L3 (McNaught)
T 2008 Jan. 14.8695 TT                                  MPC
q   5.597416             (2000.0)            P               Q
                   Peri.   46.9044      -0.3062335      -0.7252958
                   Node   288.6870      -0.9458130      +0.3052788
e   1.0            Incl.  139.3913      +0.1079763      +0.6170501
From 48 observations 2005 June 3-July 15.

Ephemeris:
    C/2005 L3 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2005 07 09    21 15.88   -34 25.9    7.602    8.502   150.6     3.4  17.7
2005 07 19    21 08.16   -34 45.7    7.500    8.453   158.5     2.5  17.6
2005 07 29    20 59.88   -35 01.2    7.430    8.405   162.7     2.1  17.6
2005 08 08    20 51.32   -35 11.1    7.394    8.356   160.5     2.3  17.6
2005 08 18    20 42.78   -35 14.4    7.391    8.308   153.3     3.1  17.5
2005 08 28    20 34.58   -35 10.9    7.421    8.260   144.0     4.1  17.5
2005 09 07    20 26.99   -35 00.7    7.479    8.212   134.0     5.1  17.5
2005 09 17    20 20.26   -34 44.4    7.562    8.164   123.8     5.9  17.5
2005 09 27    20 14.55   -34 23.0    7.665    8.116   113.4     6.5  17.5

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-O08

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