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IAUC 7854: COMET 2002 F1; C/1999 N5, C/1999 N6

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                                                  Circular No. 7854
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 2002 F1
     S. Nakano, Sumoto, Japan, reports the visual discovery by
Syogo Utsunomiya of a comet in morning twilight.  Additional
observations listed below were provided in response to a request by
the Central Bureau.

     2002 UT             R.A. (2000) Decl.        m1    Observer
     Mar. 18.844     21 44.6       + 5 26        10.0   Utsunomiya
          19.844     21 48.3       + 6 14        10.0     "
          20.18863   21 49 43.38   + 6 31 09.3   10.4   Sanchez
          20.18912   21 49 43.48   + 6 31 10.8   12.0     "
          20.18959   21 49 43.58   + 6 31 12.5            "
          20.19008   21 49 43.69   + 6 31 13.9            "
          20.19064   21 49 43.82   + 6 31 15.5            "
          20.19115   21 49 43.95   + 6 31 17.0            "
          20.48624   21 50 53.36   + 6 46 18.2   12.0   Stevens
          20.49153   21 50 54.55   + 6 46 36.9   11.0     "
          20.49527   21 50 55.49   + 6 46 48.1   10.8     "
          20.49962   21 50 56.48   + 6 47 02.3   11.2     "
          20.50660   21 50 58.23   + 6 47 22.1   11.4     "
          20.51162   21 50 59.27   + 6 47 38.9   11.2     "

S. Utsunomiya (Minami Oguni-machi, Aso-gun, Kumamoto-ken, Japan).
  25x150 binoculars; comet diffuse with weak condensation; coma
  diameter 1' on Mar. 18 and 1'.5 on Mar. 19.
S. Sanchez and J. Rodriguez (Mallorca).  0.4-m f/2 Schmidt
  telescope + CCD.  Tail 90' in p.a. 210 deg; coma diameter 2'.
B. Stevens (Las Cruces, NM).  0.30-m f/6.3 reflector + CCD.  Tail
  at least 12'.5 long (and about 14 deg wide in p.a.) centered at
  p.a. 237 deg.


COMETS C/1999 N5 AND C/1999 N6 (SOHO)
     Further to IAUC 7853, reduced observations and orbital
elements appear on MPEC 2002-F03 for two additional comets found by
R. Kracht on the SOHO website.  Both objects were visible in the C2
coronagraph; C/1999 N5, a member of the Marsden group (cf. IAUC
7832), was also visible in C3 images.  C/1999 N6 may be associated
with C/1999 M3.

    Comet         1999 UT          R.A. (2000) Decl.
    C/1999 N5     July 10.938       7 12.8   +22 10
    C/1999 N6          12.121       7 17.9   +22 33

                      (C) Copyright 2002 CBAT
2002 March 20                  (7854)            Daniel W. E. Green

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