Central Bureau for Astronomical Telegrams

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IAUC 7368: P/1999 WJ_7; C/2000 B4; C/2000 CT_54

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IAUC number 

                                                  Circular No. 7368
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET P/1999 WJ_7 (KORLEVIC)
     An apparently asteroidal object discovered by Korado Korlevic
at Visnjan with a 0.41-m f/4.3 reflector + CCD (the discovery
observation below was first published on MPS 7912) was indicated on
some of his December images to be possibly "fuzzy", and cometary
nature has been confirmed by C. Hergenrother and S. Larson, Lunar
and Planetary Laboratory, who found a 13" coma elongated in p.a. 80
deg on a 600-s co-added R-band exposure taken on 2000 Feb. 7.25 UT
with the 1.54-m Catalina reflector.

     1999 UT             R.A. (2000) Decl.        m2
     Nov. 28.94427    4 34 56.58   +24 51 51.8   17.9

     Additional observations and orbital elements (T = 2000 Feb.
15.2 TT, q = 3.17 AU, i = 2.98 deg, P = 9.97 yr) appear on MPEC
2000-D08.


COMET C/2000 B4 (LINEAR)
     Another apparently asteroidal object was reported by LINEAR
and posted on the NEO Confirmation Page.  This object has the orbit
of a centaur and was noted as appearing perhaps slightly diffuse
(P. Kusnirak, Ondrejov, 0.65-m reflector, Feb. 10) and 'soft' and
slightly larger than star images (D. Balam, Victoria, 1.82-m
reflector, Feb. 11).  Astrometry and orbital elements (T = 2000
June 24.6 TT, q = 6.82 AU, i = 15.9 deg, P = 77 yr) appear on MPEC
2000-D09.

     2000 UT             R.A. (2000) Decl.        m2
     Jan. 29.24832    8 08 15.43   +37 03 04.0   19.4


COMET C/2000 CT_54 (LINEAR)
     Yet another apparently asteroidal LINEAR object that was
posted on the NEO Confirmation Page was noted to have a 15"-16"
tail toward the north-northwest on Feb. 12 by J. G. Ries, McDonald
Observatory (0.76-m reflector).  Astrometry and parabolic orbital
elements (T = 2001 June 18.6 TT, q = 3.13 AU, i = 49.2 deg) appear
on MPEC 2000-D10.

     2000 UT             R.A. (2000) Decl.        m2
     Feb.  2.44006   14 03 40.19   -21 20 28.4   18.9

                      (C) Copyright 2000 CBAT
2000 February 18               (7368)            Daniel W. E. Green

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