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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-L09 : COMET C/2005 L2 (McNAUGHT)

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M.P.E.C. 2005-L09                                Issued 2005 June 3, 17:54 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 L2 (McNAUGHT)

Observations:
    CK05L020  C2005 06 02.55561 13 22 35.46 -47 47 28.6          18.5 T EL009E12
    CK05L020  C2005 06 02.56422 13 22 33.85 -47 47 14.3          18.7 T EL009E12
    CK05L020  C2005 06 02.57289 13 22 32.34 -47 46 59.5          18.7 T EL009E12
    CK05L020  C2005 06 02.58151 13 22 30.93 -47 46 45.2          18.5 T EL009E12
    CK05L020  C2005 06 02.61197 13 22 25.64 -47 45 53.5          18.9 T EL009E12
    CK05L020  C2005 06 02.61284 13 22 25.46 -47 45 51.5          18.5 T EL009E12
    CK05L020  C2005 06 02.61371 13 22 25.22 -47 45 50.6                 EL009E12
    CK05L020  C2005 06 02.61460 13 22 24.98 -47 45 49.1                 EL009E12
    CK05L020  C2005 06 03.38310 13 20 14.19 -47 24 08.8          18.9 N EL009474
    CK05L020  C2005 06 03.38565 13 20 13.81 -47 24 04.4          18.9 N EL009474
    CK05L020  C2005 06 03.38681 13 20 13.44 -47 24 01.2          19.1 N EL009474
    CK05L020  C2005 06 03.38843 13 20 13.36 -47 23 59.2          18.4 N EL009474
    CK05L020  C2005 06 03.42608 13 20 06.90 -47 22 56.3          18.3 T EL009E12
    CK05L020  C2005 06 03.43066 13 20 06.29 -47 22 48.2          19.0 T EL009E12
    CK05L020  C2005 06 03.43518 13 20 05.38 -47 22 40.4          18.9 T EL009E12
    CK05L020  C2005 06 03.65503 13 19 28.19 -47 16 26.0          19.5 T EL009E12
    CK05L020  C2005 06 03.65557 13 19 28.19 -47 16 25.3          18.5 T EL009E12
    CK05L020  C2005 06 03.65610 13 19 28.10 -47 16 23.4          19.8 T EL009E12
    CK05L020  C2005 06 03.65663 13 19 27.85 -47 16 23.4          18.6 T EL009E12

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  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 L2 (McNaught)
T 2005 Sept. 15.540 TT                                  MPC
q   3.04774              (2000.0)            P               Q
                   Peri.  313.493       -0.871744       -0.461359
                   Node   159.178       -0.192700       +0.632376
e   1.0            Incl.  152.351       -0.450476       +0.622293
From 19 observations 2005 June 2-3.

Ephemeris:
    C/2005 L2 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2005 05 30    13 33.46   -49 25.9    2.421    3.228   136.0    12.6  18.5
2005 06 09    13 05.88   -44 43.6    2.488    3.198   126.5    14.8  18.5
2005 06 19    12 46.66   -40 02.1    2.599    3.169   115.3    16.9  18.6
2005 06 29    12 33.95   -35 44.7    2.743    3.144   103.7    18.3  18.7
2005 07 09    12 26.04   -32 01.7    2.908    3.121    92.4    19.0  18.8
2005 07 19    12 21.64   -28 55.4    3.083    3.102    81.6    18.9  18.9
2005 07 29    12 19.79   -26 23.1    3.259    3.085    71.2    18.1  19.0

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-L09

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