[IAUC] IAUC 9166: COMET P/2010 L1 = 2002 Q16 (WISE); COMET C/2010 R1 (LINEAR); C/2009 R5, S/2009 S5 [25139-2011/04-R1]
quai en eps.harvard.edu
quai en eps.harvard.edu
Mie Sep 14 16:19:50 ART 2011
Circular No. 9166
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
New postal address: Hoffman Lab 209; Harvard University;
20 Oxford St.; Cambridge, MA 02138; U.S.A.
CBATIAU en EPS.HARVARD.EDU ISSN 0081-0304
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network
COMET P/2010 L1 = 2002 Q16 (WISE)
The recognition at the Minor Planet Center of four
observations of comet P/2010 L1 (cf. IAUC 9151) by the Mt. Lemmon
Survey on Sept. 3.39 UT allowed a refinement of the orbital
elements by B. G. Marsden to T = 2010 Feb. 4.57 TT, P = 8.02 years
(cf. MPEC 2010-R21), with T = 2002 Jan. 19.55 TT at the comet's
previous pass. As a result, R. Matson, Irvine, CA, was able to
identify and measure observations of the comet on images obtained
by the NEAT Survey at Palomar during 2002 Aug. 27-Sept. 12,
corresponding to a correction Delta(T) = +0.16 day. The 2002
observations (initial observation below) have been designated
P/2002 Q16 and are given together with a newly-linked orbit on
MPEC 2010-R23.
2002 UT R.A. (2000) Decl. Mag. Observer
Aug. 27.46241 22 58 17.18 + 9 06 35.4 20.5 NEAT
COMET C/2010 R1 (LINEAR)
An apparently asteroidal object discovered by the LINEAR
project (discovery observation tabulated below), and posted on the
'NEOCP' webpage, has been found to be "fuzzy" with a tail in p.a.
about 90 deg by W. H. Ryan and E. V. Ryan on R-band CCD images
taken on Sept. 6.22-6.26 UT with the Magdalena Ridge Observatory
2.4-m reflector.
2010 UT R.A. (2000) Decl. Mag. Observer
Sept. 4.14639 18 32 27.40 - 1 58 01.0 20.5 LINEAR
The available astrometry, the following preliminary parabolic
orbital elements by B. G. Marsden, and an ephemeris appear on MPEC
2010-R58.
T = 2012 July 20.975 TT Peri. = 131.929
Node = 339.608 2000.0
q = 4.25296 AU Incl. = 155.907
COMETS C/2009 R5 AND S/2009 S5 (SOHO)
Further to IAUC 9165, additional Kreutz sungrazers have been
found on SOHO website images -- both objects being slightly diffuse
with no tail.
Comet 2009 UT R.A.(2000)Decl. Inst. F MPEC
C/2009 R5 Sept. 13.013 11 04.9 + 2 47 C3/2 JR 2010-L20
C/2009 S5 17.513 11 17.3 + 0 56 C3/2 BZ 2010-L21
(C) Copyright 2010 CBAT
2010 September 6 (9166) Daniel W. E. Green
Más información sobre la lista de distribución Iauc