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IAUC 8724: COMET C/2006 M1 (LINEAR); C/1997 B5-B7, 1997 O3, 1997 V8, V9, 1997 X7

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                                                  Circular No. 8724
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/2006 M1 (LINEAR)
     An apparently asteroidal object discovered in the course of
the LINEAR project (discovery observation tabulated below) has been
found to be cometary following posting on the 'NEO Confirmation
Page'.  P. Birtwhistle, Great Shefford, Berkshire, U.K., reports
that CCD exposures with a 0.40-m f/6.0 Schmidt-Cassegrain reflector
on June 22.0 UT show a small, concentrated coma of diameter 6" and
mag 17.9 with a very thin, straight tail 50" long in p.a. 235 deg.
J. Young reports that CCD frames taken on June 22.3 UT with the
Table Mountain 0.61-m f/16 Cassegrain reflector shows an 8" coma of
mag 17.5, slightly pear-shaped along the tail axis, with a tail 40"
long and about 10"-16" wide spanning p.a. 225-235 deg.

     2006 UT             R.A. (2000) Decl.       Mag.
     June 18.32118   20 00 54.76   +44 01 01.4   18.4

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2006-M26.

     T = 2006 Nov. 17.002 TT          Peri. = 100.820
                                      Node  = 236.028   2000.0
     q = 4.09039 AU                   Incl. =  55.944


COMETS C/1997 B5-B7, 1997 O3, 1997 V8 AND V9, 1997 X7 (SOHO)
     Additional comets have been found on archival SOHO website
images (cf. IAUC 8722) -- all being small and stellar in appearance,
of mag 7.5-8.0, and with no tails.  C/1997 O3 and C/1997 V8 were
Kreutz sungrazers, C/1997 X7 was a Meyer-group object, C/1997 V9
belonged to no known group, and the rest belong to the Marsden
group.

 Comet       1997 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/1997 B5   Jan. 29.497   20 55.5  -16 51   C2     RK   2006-C49
 C/1997 B6        29.604   20 56.1  -16 49   C2     RK   2006-C49
 C/1997 B7        29.647   20 56.4  -16 49   C2     RK   2006-C49
 C/1997 O3   July 31.906    8 30.0  +16 55   C3     RK   2006-J44
 C/1997 V8   Nov.  6.216   14 34.7  -19 27   C3     RK   2006-J44
 C/1997 V9        14.240   15 13.5  -19 32   C2     RK   2006-J44
 C/1997 X7   Dec. 15.413   17 32.8  -22 14   C2     RK   2006-J45

                      (C) Copyright 2006 CBAT
2006 June 22                   (8724)            Daniel W. E. Green

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