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IAUC 8740: C/2006 O3-O8, C/2006 P2-P7; C/2006 M1

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IAUC number 

                                                  Circular No. 8740
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)


COMETS C/2006 O3-O8, C/2006 P2-P7 (SOHO)
     Additional Kreutz sungrazing comets have been found on SOHO
website images (cf. IAUC 8739; AK = A. Kubczak, SY = S. Yuan).
C/2006 O3-O6 were all very small and stellar in appearance, with no
tails; C/2006 O3 peaked at mag about 6.5-7, C/2006 O4 and O5 peaked
at mag about 7, and C/2006 O6 peaked at mag about 5.5-6.  C/2006 O7
peaked at mag about 3.5-4 with a stubby tail in C3 images; in C2
images, it showed a a diffuse head and a very thin tail that peaked
in length at about 29'.  C/2006 O8 showed a hint of elongation and
peaked at mag about 5.5.  C/2006 P2 was tiny, faint, and stellar in
appearance, peaking at mag about 7-7.5.  C/2006 P3 appeared stellar
with a hint of elongation, peaking at mag approximately 6-6.5.
C/2006 P4 was teardrop-shaped in C3 images, peaking at mag about
5.5; in C2 images, it was very faint and diffuse with a very slight
elongation but no tail.  C/2006 P5, C/2006 P6, and C/2006 P7 were
all was quite faint, tiny, and stellar in appearance, with C/2006
P7 reaching mag about 7.5.

 Comet        2006 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/2006 O3    July 17.113   7 31.2   +19 28   C3     TH   2006-P28
 C/2006 O4         20.179   7 41.9   +18 25   C3     HS   2006-P28
 C/2006 O5         21.488   7 47.8   +17 47   C3     HS   2006-P28
 C/2006 O6         23.571   7 51.7   +17 20   C3     HS   2006-P28
 C/2006 O7         25.679   7 55.2   +16 13   C3/2   HS   2006-P32
 C/2006 O8         26.488   8 02.6   +17 07   C3     HS   2006-P32
 C/2006 P2    Aug.  1.696   8 30.7   +16 35   C3     AK   2006-P32
 C/2006 P3          2.138   8 27.9   +15 40   C3     AK   2006-P32
 C/2006 P4          2.431   8 24.8   +15 13   C3/2   SY   2006-P33
 C/2006 P5          3.179   8 36.5   +16 05   C3     HS   2006-P33
 C/2006 P6          3.363   8 35.5   +15 58   C3     HS   2006-P33
 C/2006 P7          4.196   8 39.5   +15 51   C3     AK   2006-P33


COMET C/2006 M1 (LINEAR)
     Improved orbital elements from MPEC 2006-P16:

                    Epoch = 2007 Mar.  1.0 TT
     T = 2007 Feb. 13.9184 TT         Peri. = 122.8921
     e = 0.976913                     Node  = 231.6153  2000.0
     q = 3.556288 AU                  Incl. =  54.8770

                      (C) Copyright 2006 CBAT
2006 August 10                 (8740)            Daniel W. E. Green

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