[IAUC] IAUC 8965: C/2008 P1; P/2008 O2; P/2008 O3 [XXXXX-XXXX/XX-F1]
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Vie Ago 15 14:37:23 ART 2008
Circular No. 8965
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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URL http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)
COMET C/2008 P1 (GARRADD)
G. J. Garradd reports his discovery of a comet on CCD images
obtained in poor seeing with the 0.5-m Uppsala Schmidt telescope
(discovery observation tabulated below), the object described as
being about 10" in size with a faint, broad feature extending about
15" to the west. Following posting on the 'NEOCP' webpage, C.
Jacques and E. Pimentel (Belo Horizonte, Minas Gerais, Brazil,
0.30-m reflector) report that thirty stacked 60-s CCD exposures
show a condensed coma of diameter 20" on Aug. 14.2 UT.
2008 UT R.A. (2000) Decl. Mag.
Aug. 13.72362 0 25 59.88 -46 56 35.8 16.7
The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2008-P66.
T = 2009 July 2.633 TT Peri. = 12.615
Node = 0.118 2000.0
q = 3.64014 AU Incl. = 61.227
COMET P/2008 O2 (McNAUGHT)
Additional astrometry have permitted orbital calculations to
show that this comet (cf. IAUC 8963) is of short period, the
elements below taken from MPEC 2008-P54.
T = 2009 Aug. 5.204 TT Peri. = 42.253
e = 0.15655 Node = 325.529 2000.0
q = 3.78077 AU Incl. = 9.967
a = 4.48252 AU n = 0.103853 P = 9.5 years
COMET P/2008 O3 (BOATTINI)
Additional astrometry have permitted orbital calculations to
show that this comet (cf. IAUC 8964) is of short period, the
elements below taken from MPEC 2008-P65.
T = 2008 June 4.806 TT Peri. = 341.527
e = 0.72567 Node = 47.685 2000.0
q = 2.51228 AU Incl. = 32.218
a = 9.15770 AU n = 0.035565 P = 27.7 years
(C) Copyright 2008 CBAT
2008 August 15 (8965) Daniel W. E. Green
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