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Minor Planet Center

MPEC 2009-U102: COMET C/2009 S3 (LEMMON)

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Read MPEC 2009-U101 Read MPEC 2009-U103 

M.P.E.C. 2009-U102                               Issued 2009 Oct. 26, 03:03 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/2009 S3 (LEMMON)

Observations:
    CK09S030  C2009 10 10.78911 18 05 47.82 +32 08 59.4          20.7 N EU102204
    CK09S030  C2009 10 25.13036 18 11 27.12 +31 18 59.7          20.7 T EU102G96
    CK09S030  C2009 10 25.13561 18 11 27.23 +31 18 58.1          20.4 T EU102G96

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
G96 Mt. Lemmon Survey.  Observer A. Boattini.  Measurers E. C. Beshore,
    A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson.  1.5-m reflector + CCD.

Orbital elements:
    C/2009 S3 (Lemmon)
T 2011 Dec. 10.343 TT                                   MPC
q   6.48092              (2000.0)            P               Q
                   Peri.  129.636       +0.719811       +0.320122
                   Node   225.114       -0.098051       +0.925309
e   1.0            Incl.   60.385       +0.687211       -0.203285
From 37 observations 2009 Sept. 24-Oct. 25.

Ephemeris:
    C/2009 S3 (Lemmon)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 10 26    18 11.85   +31 16.2    8.475    8.259    74.1     6.6  20.3
2009 11 05    18 16.75   +30 47.3    8.512    8.220    69.6     6.5  20.3
2009 11 15    18 22.30   +30 24.0    8.542    8.181    65.5     6.3  20.3
2009 11 25    18 28.42   +30 07.3    8.563    8.142    61.7     6.1  20.3
2009 12 05    18 34.99   +29 57.9    8.574    8.104    58.5     6.0  20.3
2009 12 15    18 41.95   +29 56.0    8.575    8.066    56.0     5.8  20.2
2009 12 25    18 49.18   +30 02.3    8.565    8.028    54.1     5.7  20.2

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-U102

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