[IAUC] CBET 827: 20070131 : COMET P/2006 XG16 (SPACEWATCH)
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Electronic Telegram No. 827
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT en CFA.HARVARD.EDU (science)
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COMET P/2006 XG16 (SPACEWATCH)
C. W. Hergenrother, University of Arizona, informs us that R-band
images taken with the Catalina 1.54-m telescope show the Spacewatch
discovery 2006 XG16 (cf. MPS 192606, 195581, MPO 113007; discovery
observation below) to be a comet. It was suspected to be cometary on images
taken on 2007 Jan. 27.19 UT in poor seeing. Co-added 600-s R-band exposures
in excellent seeing on Jan. 28.19 UT show the object at R = 18.2 with a coma
9" in diameter and a tail 20" long in p.a. 135 deg.
2006 UT R.A. (2000) Decl.
Dec. 10.41280 7 31 13.50 +26 37 28.7
The following orbital elements, together with the Jan. 27-28 astrometry,
full residuals and an ephemeris, are given on MPEC 2007-B79.
Epoch = 2007 Mar. 1.0 TT
T = 2007 Feb. 9.9575 TT Peri. = 41.3095
e = 0.420981 Node = 78.4544 2000.0
q = 2.102218 AU Incl. = 9.0781
a = 3.630654 AU n = 0.1424711 P = 6.918 years
NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
superseded by text appearing later in the printed IAU Circulars.
(C) Copyright 2007 CBAT
2007 January 31 (CBET 827) Brian G. Marsden
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