MPEC 2008-Q07 : COMET P/2008 O2 (McNAUGHT)
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M.P.E.C. 2008-Q07 Issued 2008 Aug. 18, 16:33 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/2008 O2 (McNAUGHT)
Observations:
PK08O020 C2008 08 03.00436 21 27 38.92 -17 07 27.3 EQ007204
PK08O020 C2008 08 03.07942 21 27 35.96 -17 07 32.8 17.9 N EQ007204
PK08O020 C2008 08 10.51564 21 22 44.74 -17 16 29.9 17.8 T EQ007423
PK08O020 C2008 08 10.55025 21 22 43.30 -17 16 32.2 18.0 T EQ007423
PK08O020 C2008 08 11.55304 21 22 03.77 -17 17 42.0 18.2 T EQ007322
PK08O020 C2008 08 11.57216 21 22 03.03 -17 17 43.1 18.1 T EQ007322
PK08O020 C2008 08 11.59148 21 22 02.15 -17 17 44.7 18.3 T EQ007322
PK08O020 C2008 08 11.96089 21 21 47.54 -17 18 14.3 16.8 T EQ007585
PK08O020 C2008 08 11.96315 21 21 47.42 -17 18 13.3 16.9 T EQ007585
PK08O020 C2008 08 11.96527 21 21 47.38 -17 18 13.2 17.3 N EQ007585
PK08O020 C2008 08 11.97672 21 21 46.93 -17 18 12.7 17.5 N EQ007585
PK08O020 C2008 08 13.03045 21 21 05.27 -17 19 21.6 17.0 N EQ007I31
PK08O020 C2008 08 13.98634 21 20 27.51 -17 20 28.0 EQ007J95
PK08O020 C2008 08 13.99472 21 20 27.20 -17 20 27.3 18.4 N EQ007J95
PK08O020 C2008 08 17.62701 21 18 04.93 -17 24 11.9 EQ007900
PK08O020 C2008 08 17.63018 21 18 04.79 -17 24 11.6 17.8 N EQ007900
PK08O020 C2008 08 17.90136 21 17 53.82 -17 24 29.9 18.6 N EQ007147
Observer details:
147 Osservatorio Astronomico di Suno. Observers P. Concari, D. Crespi,
S. Foglia, G. Galli, S. Minuto. Measurers P. Concari, D. Crespi,
S. Foglia. 0.40-m f/4 reflector + CCD.
204 Schiaparelli Observatory. Observer F. Luppi. Measurer L. Buzzi. 0.60-m
f/4.64 reflector + CCD.
322 Perth Observatory, Bickley-MCT. Observer J. Biggs. 0.35-m f/11
Schmidt-Cassegrain + CCD.
423 North Ryde. Observer S. G. McAndrew. 0.20-m f/4 hyperbolic astrograph
+ CCD.
585 Kiev comet station. Observer A. Baransky. 0.7-m f/4 reflector + CCD.
900 Moriyama. Observer Y. Ikari. 0.26-m f/7.0 reflector + CCD.
I31 Observatorio Astronomico del Colegio Cristo Rey. Observers V. Buso,
G. Mazalan. Measurer E. Diez. 0.28-m f/10 Schmidt-Cassegrain + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
Orbital elements:
P/2008 O2 (McNaught)
T 2009 Apr. 24.403 TT MPC
q 3.80113 (2000.0) P Q
n 0.103119 Peri. 27.904 +0.990454 +0.101903
a 4.50378 Node 325.854 -0.135441 +0.844666
e 0.15601 Incl. 9.519 +0.025636 +0.525504
P 9.56
From 153 observations 2008 July 28-Aug. 17.
Ephemeris:
P/2008 O2 (McNaught)
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2008 08 12 21 21.77 -17 18.2 2.889 3.901 177.2 0.7 17.2
2008 08 22 21 15.29 -17 28.1 2.903 3.894 166.7 3.4 17.2
2008 09 01 21 09.42 -17 34.0 2.944 3.887 155.7 6.1 17.2
2008 09 11 21 04.64 -17 34.7 3.012 3.880 144.9 8.6 17.3
2008 09 21 21 01.32 -17 29.5 3.103 3.873 134.4 10.7 17.3
2008 10 01 20 59.67 -17 18.1 3.213 3.867 124.3 12.3 17.4
2008 10 11 20 59.80 -17 00.5 3.337 3.861 114.6 13.6 17.5
2008 10 21 21 01.66 -16 36.8 3.472 3.855 105.2 14.4 17.6
Further observations of this comet are desirable. The above orbit
indicates a very close approach to Jupiter (to 0.1 AU) in 2003 and that the
previous perihelion distance was around 5.8 AU.
Further observations of comet P/2008 O3 are very desirable.
Brian G. Marsden (C) Copyright 2008 MPC M.P.E.C. 2008-Q07
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