[IAUC] IAUC 9062: 222P; C/2009 P1; P/2009 O3 [25139-2009/08-R1]
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Mar Ago 18 01:13:44 ART 2009
Circular No. 9062
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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COMET 222P/2009 MB_9 = 2004 X1 (LINEAR)
R. H. McNaught, Siding Spring Survey, writes that 2009 MB_9
(cf. MPEC 2009-M56; MPS 289318, 289477, 289905) appeared cometary
on Aug. 2. H. Sato, Tokyo, suggested identity with comet P/2004 X1,
the indicated correction to the prediction on MPC 56804 (erroneously
cited as MPEC 56804 on CBET 1893) being Delta(T) = -2.2 days. The
rediscovery observation is given below; further details are on MPEC
2009-P09. The comet has been assigned the permanent number 222P
(MPC 66631).
2009 UT R.A. (2000) Decl. Mag. Observer
June 29.47208 15 03 58.15 -38 51 13.4 18.3 McNaught
COMET C/2009 P1 (GARRADD)
R. H. McNaught, Siding Spring Observatory, reports the
discovery by G. J. Garradd (discovery observation below) of a
tailless object with an approximately circular coma 15" across on
40-s CCD exposures with the 0.5-m Uppsala Schmidt telescope.
Further observations were obtained by Garradd on the following
night and at two other observatories in response to placement of
the discovery on the NEO Confirmation Page.
2009 UT R.A. (2000) Decl. Mag. Observer
Aug. 13.76794 0 16 01.27 -44 33 23.1 17.5 Garradd
The available astrometry, the following very uncertain
preliminary parabolic orbital elements, and an ephemeris appear on
MPEC 2009-P54.
T = 2011 Aug. 10.229 TT Peri. = 95.562
Node = 344.087 2000.0
q = 1.25329 AU Incl. = 82.646
COMET P/2009 O3 (HILL)
Additional astrometry of this comet (cf. IAUC 9058) shows it
to be of short period; orbital elements from MPEC 2009-Q05:
T = 2009 May 17.986 TT Peri. = 154.293
e = 0.68496 Node = 183.729 2000.0
q = 2.44452 AU Incl. = 16.189
a = 7.75933 AU n = 0.045600 P = 21.61 years
(C) Copyright 2009 CBAT
2009 August 17 (9062) Daniel W. E. Green
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