[IAUC] IAUC 9161: P/2010 P3; P/2010 P4 [25139-2011/04-R1]
quai en cfa.harvard.edu
quai en cfa.harvard.edu
Lun Ago 16 19:44:29 ART 2010
Circular No. 9161
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director: D. W. E. Green, Room 209; Department of
Earth and Planetary Sciences; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
CBAT en IAU.ORG; CBATIAU en EPS.HARVARD.EDU
URL http://www.cfa.harvard.edu/iau/cbat.html ISSN 0081-0304
COMET P/2010 P3 (SPAHR)
G. Hug reports his recovery of comet P/1998 U4 (cf. IAUCs 7042,
7043) on CCD images obtained with a 0.56-m reflector located near
Scranton, KS, U.S.A. (astrometry tabulated below); in stacked
images, the object showed a possible faint broad tail at p.a.
roughly 260 deg, spanning 60 deg in p.a. and about 10"-12" long.
2010 UT R.A. (2000) Decl. Mag. Observer
Aug. 14.40532 0 06 05.20 + 5 24 54.2 20.0 Hug
14.41616 0 06 05.07 + 5 24 50.8 20.3 "
14.42699 0 06 04.97 + 5 24 47.4 20.3 "
16.29422 0 05 39.82 + 5 15 46.1 20.3 "
16.31586 0 05 39.46 + 5 15 39.8 20.6 "
16.32669 0 05 39.27 + 5 15 36.4 20.3 "
The indicated correction to the prediction by B. G. Marsden on MPC
65938 is Delta(T) = +0.04 day. Linked orbital elements by G. V.
Williams (Epoch = 2012 Apr. 23.0 TT, T = 2012 Apr. 3.5900 TT, e =
0.278856, q = 3.979945 AU, Peri. = 247.6855 deg, Node = 180.7731
deg, i = 32.4828 deg, equinox 2000.0, P = 12.97 years), residuals,
and an ephemeris appear on MPEC 2010-Q05.
COMET P/2010 P4 (WISE)
Amy Mainzer, Jet Propulsion Laboratory, reports the discovery
of a comet (discovery observation tabulated below) with a tail
extending at least about 150" toward the southwest in images
obtained with the WISE satellite. Following posting on the 'NEOCP'
webpage, ground-based CCD astrometrists at three observatories have
failed to find cometary appearance, noting the object's magnitude
to be 21.3-21.9 during Aug. 11-16.
2010 UT R.A. (2000) Decl. Observer
Aug. 6.58975 2 37 56.10 +20 05 40.6 WISE
The following elliptical orbital elements by G. V. Williams and an
ephemeris appear on MPEC 2010-Q06.
T = 2010 July 6.4827 TT Peri. = 354.4274
e = 0.514710 Node = 2.3361 2000.0
q = 1.862466 AU Incl. = 24.1457
a = 3.837837 AU n = 0.1310914 P = 7.52 years
(C) Copyright 2010 CBAT
2010 August 16 (9161) Daniel W. E. Green
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