• MPC Preparation (Info)

    • MPEC 2009-P36 : COMET C/2009 O4 (HILL)

    The following Minor Planet Electronic Circular may be linked-to from your own Web pages, but must not otherwise be redistributed electronically.

    A form allowing access to any MPEC is at the bottom of this page.

    Read MPEC 2009-P35 Read MPEC 2009-P37 

    M.P.E.C. 2009-P36                                Issued 2009 Aug. 10, 14:26 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 O4 (HILL)

Observations:
    CK09O040  C2009 08 04.65226 00 31 41.37 +05 49 57.0                 EP036900
    CK09O040  C2009 08 04.65583 00 31 41.32 +05 49 52.5          16.5 T EP036900
    CK09O040  C2009 08 04.86826 00 31 36.84 +05 45 12.8          16.5 N EP036B18
    CK09O040  C2009 08 04.86852 00 31 36.82 +05 45 12.0          16.6 N EP036B18
    CK09O040  C2009 08 04.86889 00 31 36.81 +05 45 12.1          16.6 N EP036B18
    CK09O040  C2009 08 04.86914 00 31 36.80 +05 45 11.6          16.9 N EP036B18
    CK09O040  C2009 08 04.87044 00 31 36.77 +05 45 08.3          16.6 N EP036B18
    CK09O040  C2009 08 04.96245 00 31 34.81 +05 43 09.4                 EP036204
    CK09O040  C2009 08 04.96769 00 31 34.72 +05 43 02.5                 EP036204
    CK09O040  C2009 08 04.98967 00 31 34.17 +05 42 33.5          16.8 N EP036B01
    CK09O040  C2009 08 04.99389 00 31 34.10 +05 42 28.0          16.8 N EP036B01
    CK09O040  C2009 08 05.01225 00 31 33.69 +05 42 04.2          16.7 N EP036B01
    CK09O040  C2009 08 05.01647 00 31 33.60 +05 41 58.4          16.8 N EP036B01
    CK09O040  C2009 08 05.05106 00 31 32.85 +05 41 12.8          16.4 N EP036204
    CK09O040  C2009 08 06.27995 00 31 05.33 +05 13 48.0                 EP036H10
    CK09O040  C2009 08 06.28627 00 31 05.27 +05 13 39.6                 EP036H10
    CK09O040  C2009 08 07.26258 00 30 41.49 +04 51 19.9          17.0 N EP036850
    CK09O040  C2009 08 07.27771 00 30 40.99 +04 50 57.9          16.3 N EP036850
    CK09O040  C2009 08 07.99225 00 30 22.89 +04 34 15.6          17.0 N EP036160
    CK09O040  C2009 08 07.99794 00 30 22.77 +04 34 06.9          17.0 N EP036160
    CK09O040  C2009 08 08.00829 00 30 22.48 +04 33 53.1          16.9 N EP036160
    CK09O040  C2009 08 08.01199 00 30 22.35 +04 33 47.6          17.1 N EP036160
    CK09O040  C2009 08 08.01568 00 30 22.28 +04 33 42.1          17.0 N EP036160
    CK09O040  C2009 08 08.11645 00 30 19.52 +04 31 20.1          16.7 N EP036J05
    CK09O040  C2009 08 08.14016 00 30 18.87 +04 30 46.3          16.6 N EP036J05
    CK09O040  C2009 08 08.16229 00 30 18.26 +04 30 14.8          16.7 N EP036J05
    CK09O040  C2009 08 09.14740 00 29 51.42 +04 06 42.3          16.3 N EP036J24
    CK09O040  C2009 08 09.15105 00 29 51.20 +04 06 32.8          15.8 N EP036J24
    CK09O040  C2009 08 09.15471 00 29 51.20 +04 06 32.0          16.3 N EP036J24

Observer details:
160 Castelmartini.  Observers P. Camilleri, E. Guido, E. Prosperi, G. Sostero.
    Measurer E. Prosperi.  0.35-m f/10 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
850 Cordell-Lorenz Observatory, Sewanee.  Observers D. T. Durig, P. Kharel.
    0.30-m f/2.5 Schmidt-Cassegrain + CCD.
900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.
B01 Taunus Observatory, Frankfurt.  Observers S. Karge, R. Kling.  Measurer
    S. Karge.  0.60-m f/3.3 Cassegrain + CCD.
B18 Terskol.  Observers A. Baransky, M. Andreev, V. Ponomarenko, S. Velichko.
    0.6-m f/13 reflector + CCD.
H10 Tzec Maun Observatory, Mayhill.  Observer D. Chestnov.  0.21-m f/7.9
    refractor + CCD.
J05 Bootes Observatory, Boecillo.  Observer D. Cardenosa.  Measurers
    D. Cardenosa, R. Lozano.  0.20-m f/10 Schmidt-Cassegrain + CCD.
J24 Observatorio Altamira.  Observer J. F. Hernandez.  0.4-m f/10
    Schmidt-Cassegrain + CCD.

Orbital elements:
    C/2009 O4 (Hill)
T 2010 Jan. 1.917 TT                                    MPC
q   2.55571              (2000.0)            P               Q
                   Peri.  224.055       +0.704491       -0.699043
                   Node   172.921       +0.129590       +0.296548
e   1.0            Incl.   95.830       -0.697781       -0.650691
From 147 observations 2009 July 30-Aug. 9.

Ephemeris:
    C/2009 O4 (Hill)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 08 07    00 30.80   +04 57.4    2.294    2.999   125.5    16.0  15.6
2009 08 17    00 25.31   +00 40.1    2.115    2.946   138.0    13.3  15.3
2009 08 27    00 16.89   -04 31.5    1.969    2.896   151.1     9.7  15.1
2009 09 06    00 05.58   -10 29.2    1.869    2.848   163.0     5.9  14.9
2009 09 16    23 51.78   -16 51.3    1.819    2.803   165.3     5.2  14.8
2009 09 26    23 36.37   -23 06.2    1.824    2.762   154.3     9.0  14.7

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-P36

    Read MPEC 2009-P35 Read MPEC 2009-P37

    MPEC number:

    Enter an MPEC number in one of the following forms:

    • 1997-B01 (the full form)
    • J97B01 (the packed version of the full form)
    • B01 (the abbreviated form)