• MPC Preparation (Info)

  • MPEC 2009-H11 : COMET C/2009 F4 (McNAUGHT)

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    Read MPEC 2009-H10 Read MPEC 2009-H12


    M.P.E.C. 2009-H11                                Issued 2009 Apr. 18, 14:53 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 F4 (McNAUGHT)
    
    Observations:
        CK09F040  C2009 04 14.95198 15 38 03.31 -24 03 01.3          16.7 T EH011585
        CK09F040  C2009 04 14.96090 15 38 02.87 -24 03 02.1          16.4 T EH011585
        CK09F040  C2009 04 15.44753 15 37 50.14 -24 03 50.0          18.2 N EH011E85
        CK09F040  C2009 04 15.45043 15 37 50.07 -24 03 50.3          18.1 N EH011E85
        CK09F040  C2009 04 15.45331 15 37 50.04 -24 03 50.7          18.3 N EH011E85
        CK09F040  C2009 04 15.59539 15 37 46.14 -24 04 04.5          17.4 T EH011423
        CK09F040  C2009 04 15.63075 15 37 45.18 -24 04 08.3          17.3 T EH011423
        CK09F040  C2009 04 16.60277 15 37 19.06 -24 05 46.7          17.4 T EH011423
        CK09F040  C2009 04 16.64753 15 37 17.80 -24 05 51.3          17.4 T EH011423
        CK09F040  C2009 04 18.09068 15 36 38.27 -24 08 17.0          17.3 N EH011213
        CK09F040  C2009 04 18.09326 15 36 38.22 -24 08 17.1          17.4 N EH011213
        CK09F040  C2009 04 18.09584 15 36 38.12 -24 08 17.6          17.5 N EH011213
    
    Observer details:
    213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
        f/5 Schmidt-Cassegrain + CCD.
    423 North Ryde.  Observer S. G. McAndrew.  0.20-m f/4 hyperbolic astrograph
        + CCD.
    585 Kiev comet station.  Observers A. Baransky, V. Ponomarenko.  0.7-m f/4
        reflector + CCD.
    E85 Farm Cove.  Observer J. McCormick.  0.35-m f/10 Schmidt-Cassegrain + CCD.
    
    Orbital elements:
        C/2009 F4 (McNaught)
    T 2012 Jan. 1.727 TT                                    MPC
    q   5.46337              (2000.0)            P               Q
                       Peri.  260.314       +0.047432       +0.610647
                       Node    53.561       +0.161270       +0.776308
    e   1.0            Incl.   79.291       -0.985770       +0.156385
    From 90 observations 2009 Mar. 19-Apr. 18.
    
    Ephemeris:
        C/2009 F4 (McNaught)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2009 04 09    15 40.56   -23 52.4    8.056    8.852   140.6     4.1  17.0
    2009 04 19    15 36.22   -24 09.7    7.909    8.802   151.1     3.2  16.9
    2009 04 29    15 31.28   -24 24.8    7.790    8.751   161.5     2.1  16.9
    2009 05 09    15 25.93   -24 37.6    7.702    8.701   171.0     1.0  16.8
    2009 05 19    15 20.38   -24 48.2    7.646    8.650   172.7     0.9  16.8
    2009 05 29    15 14.84   -24 57.1    7.622    8.600   163.9     1.9  16.8
    2009 06 08    15 09.54   -25 04.7    7.629    8.550   153.7     3.0  16.7
    2009 06 18    15 04.67   -25 11.7    7.664    8.500   143.3     4.1  16.7
    2009 06 28    15 00.41   -25 18.9    7.724    8.451   133.1     5.0  16.7
    
    Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-H11
    

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    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)