Printer-friendly version
Follow the MPC on Twitter Follow the MPC on Facebook The MPC blog
Minor Planet Center

MPEC 2009-S151: COMET P/2009 QG31

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-S150 Read MPEC 2009-S152 

M.P.E.C. 2009-S151                               Issued 2009 Sept. 30, 16:53 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 P/2009 QG31

Observations:
    PK09Q31G  C2009 09 16.25787 22 26 43.94 -10 15 30.8          19.4 T ES151H10
    PK09Q31G  C2009 09 16.27425 22 26 43.26 -10 15 30.0          18.8 T ES151H10
    PK09Q31G  C2009 09 23.87991 22 23 01.65 -10 07 44.5          19.9 N ES151B33
    PK09Q31G  C2009 09 23.90227 22 23 01.03 -10 07 41.3          19.2 N ES151B33
    PK09Q31G  C2009 09 23.93117 22 23 00.28 -10 07 39.4          19.6 N ES151B33
    PK09Q31G  C2009 09 23.94898 22 22 59.73 -10 07 37.9          19.5 N ES151B33

Observer details:
B33 Libbiano Observatory, Peccioli.  Observers P. Bacci, R. Emilio.  Measurer
    P. Bacci.  0.5-m f/8 Ritchey-Chretien + CCD.
H10 Tzec Maun Observatory, Mayhill.  Observer E. Bryssinck.  0.4-m f/9
    Ritchey-Chretien + CCD.

Orbital elements:
    P/2009 QG31
T 2009 Oct. 10.3562 TT                                  MPC
q   2.148298             (2000.0)            P               Q
n   0.1457732      Peri.    5.9002      +0.9905509      +0.1355373
a   3.575617       Node   346.2569      -0.1291581      +0.8705712
e   0.399181       Incl.    5.0571      -0.0461206      +0.4730067
P   6.76
From 57 observations 2009 Aug. 16-Sept. 23.

Ephemeris:
    P/2009 QG31
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 09 26    22 22.24   -10 04.3    1.219    2.151   150.8    13.2  17.8
2009 10 06    22 20.17   -09 41.2    1.280    2.149   140.6    17.2  17.9
2009 10 16    22 21.01   -09 05.7    1.358    2.149   131.1    20.5  18.0
2009 10 26    22 24.77   -08 17.7    1.449    2.151   122.3    23.0  18.1
2009 11 05    22 31.23   -07 17.9    1.552    2.157   114.2    24.8  18.3
2009 11 15    22 40.02   -06 07.3    1.663    2.164   106.6    26.0  18.5
2009 11 25    22 50.80   -04 46.7    1.782    2.175    99.5    26.6  18.6
2009 12 05    23 03.20   -03 17.4    1.905    2.187    92.8    26.7  18.8
2009 12 15    23 16.90   -01 40.6    2.032    2.202    86.4    26.5  19.0
2009 12 25    23 31.67   +00 02.5    2.161    2.219    80.3    25.9  19.1

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-S151

Read MPEC 2009-S150 Read MPEC 2009-S152

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)

Valid HTML 4.01!