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IAUC 8000: C/2002 U1; C/2002 U2; 2002ha; V4742 Sgr

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IAUC number 

                                                  Circular No. 8000
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET C/2002 U1 (SOHO)
     Further to IAUC 7991, D. Hammer reports measurements for a
Kreutz sungrazing comet found by X. Leprette on C2 coronagraph
images at the SOHO website.  The reduced astrometry and orbital
elements by B. G. Marsden appear on MPEC 2002-U08.

     2002 UT           R.A. (2000) Decl.
     Oct. 16.329      13 16.3      - 9 36


COMET C/2002 U2 (LINEAR)
     M. Bezpalko, Lincoln Laboratory, Massachusetts Institute of
Technology, reports the LINEAR discovery of a comet with a tail in
p.a. about 270 deg (discovery observation below).  L. Sarounova,
Ondrejov, reports that images taken with the 0.65-m reflector on
Oct. 26.0 UT show a 10" coma (m_1 = 15.5) and a narrow tail at
least 2' long in p.a. 280 deg.

     2002 UT             R.A. (2000) Decl.        m1
     Oct. 25.43912    8 09 45.15   +72 37 35.8   17.3

     Additional astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2002-U33.

     T = 2003 Jan.  3.945 TT          Peri. = 100.305
                                      Node  =  39.082   2000.0
     q = 1.15645 AU                   Incl. =  59.455


SUPERNOVA 2002ha IN NGC 6962
     W. M. Wood-Vasey, Lawrence Berkeley National Laboratory,
reports that NEAT images do not show SN 2002ha (cf. IAUC 7997) on
Oct. 18.3 UT (limiting mag 19.85 at S/N = 3, after subtraction of
galaxy light from images taken on Sept. 20).


V4742 SAGITTARII
     Visual magnitude estimates:  Sept. 23.014 UT, 9.2 (J. Garcia,
Rama Caida, Argentina); 29.924, 10.4 (R. Y. Shida, Sao Paulo,
Brazil); Oct. 9.503, 11.5 (A. Pearce, Nedlands, W. Australia);
14.510, 11.7 (Pearce).

                      (C) Copyright 2002 CBAT
2002 October 26                (8000)            Daniel W. E. Green

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