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IAUC 8309: COMET P/2004 F1 (NEAT); C/2003 J8, J9, K7, K8,, K9

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                                                  Circular No. 8309
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 P/2004 F1 (NEAT)
     M. Hicks reports the discovery of a comet on CCD images taken
with the 1.2-m Palomar Schmidt telescope in the course of the Near-
Earth Asteroid Tracking project (discovery observation below).  The
comet appeared soft and diffuse compared to nearby background
stars, showing a coma of diameter 5" elongated east-west.
Following posting on the NEO Confirmation Page, J. Young reported
that CCD images taken by A. Grigsby and himself with the 0.6-m
reflector at Table Mountain on Mar. 19.4 show a bright 4"-diameter
coma with little central condensation and a weak fuzzy area about
12" long spanning p.a. 240-270 deg (but no distinct tail).

     2004 UT             R.A. (2000) Decl.       Mag.
     Mar. 18.30900   12 56 08.70   +23 10 53.7   18.9

The available astrometry (including prediscovery observations back
to Feb. 16), the following elliptical orbital elements, and an
ephemeris appear on MPEC 2004-F39.

     T = 2003 Oct. 20.2305 TT         Peri. =  26.5748
     e = 0.450051                     Node  = 111.8123  2000.0
     q = 2.450159 AU                  Incl. =  18.2481
       a =  4.455248 AU    n = 0.1048084    P =   9.40 years


COMETS C/2003 J8, J9, K7, K8, AND K9 (SOHO)
     Further to IAUC 8300, K. McGleam reports measures of
additional Kreutz sungrazing comets found on SOHO C2 website images
by D. Evans (C/2003 K8) and R. Kracht (remaining comets).  C/2003
J8, C/2003 K7, and C/2003 K9 were also visible in C3 images.  The
reduced astrometry and orbital elements by B. G. Marsden appear on
MPEC 2004-F29.

      Comet         2003 UT         R.A. (2000.0) Decl.
      C/2003 J8     May 15.613        3 37.6  +16 14
      C/2003 J9         15.688        3 32.8  +17 31
      C/2003 K7         22.321        4 11.0  +15 35
      C/2003 K8         22.410        3 57.9  +18 48
      C/2003 K9         23.346        4 09.8  +16 49

                      (C) Copyright 2004 CBAT
2004 March 19                  (8309)            Daniel W. E. Green

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