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IAUC 7899: C/2000 H6, H7, J8, N4; C/2002 J3 (SOHO); C/2002 J4

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IAUC number

                                                  Circular No. 7899
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

COMETS C/2000 H6, H7, J8, N4; C/2002 J3 (SOHO)
     Further to IAUC 7898, D. Hammer reports his measurements for
additional comets found by R. Kracht (2000 comets; C2 coronagraph)
and by K. Cernis (C/2002 J3; C3) in the SOHO archive.  The reduced
astrometry and orbital elements by B. G. Marsden appear on the
MPECs cited below.  Comets C/2000 H6, C/2000 H7, and C/2002 J3 are
members of the Kreutz group; the other two belong to the Meyer
group (cf. IAUC 7832).

  Comet         2000 UT          R.A. (2000) Decl.       MPEC
  C/2000 H6     Apr. 26.063       2 18.6   +12 14       2002-H49
  C/2000 H7          28.663       2 30.2   +13 11       2002-H49
  C/2000 J8     May   6.226       2 58.0   +17 46       2002-H49
  C/2000 N4     July  4.660       6 55.0   +23 50       2002-J09

  Comet         2002 UT          R.A. (2000) Decl.       MPEC
  C/2002 J3     May  13.446       3 32.7   +14 14       2002-J46

COMET C/2002 J4 (NEAT)
     S. Pravdo, E. Helin, and K. Lawrence, Jet Propulsion
Laboratory, report the discovery by NEAT, on CCD images taken on
May 13.5 UT with the Palomar 1.2-m Schmidt telescope, of a comet
with nebulosity extending about 5" toward the southwest.  Following
posting on the NEO Confirmation Page, additional observations
obtained elsewhere on May 13.9 confirm the cometary nature:  P.
Kusnirak at Ondrejov (0.65-m reflector; m_1 = 18.3, faint 7" coma
slightly elongated to the southwest); M. Tichy and M. Kocer at Klet
(1.06-m KLENOT telescope; compact coma of diameter 16"); and L.
Kornos at Modra (0.6-m reflector; m_1 = 16.6, coma diameter about
15").  Additional observations made by LONEOS and LINEAR on May 4,
7, and 8 were then identified by the Minor Planet Center staff.

     2002 UT             R.A. (2000) Decl.        m1
     May  13.45406   15 49 37.19   + 0 26 39.8   18.0

Astrometry and the following preliminary parabolic orbital elements
appear on MPEC 2002-J47:

                      (C) Copyright 2002 CBAT
2002 May 13                    (7899)            Daniel W. E. Green

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