Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8783: C/2006 T10, C/2006 U8-U11; C/2006 X1

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).


Read IAUC 8782  SEARCH Read IAUC 8784

View IAUC 8783 in .dvi, .ps or .PDF format.
IAUC number


                                                  Circular No. 8783
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 T10 AND C/2006 U8-U11 (SOHO)
     Additional apparent comets have been found on SOHO website
images (cf. IAUC 8780), all being Kreutz sungrazers except C/2006
U10 (Meyer group).  K. Battams notes that C/2006 T10 was small and
extremely faint (mag about 8.5).  C/2006 U8 was tiny, stellar, and
faint (mag about 8.0) in C3 images, and extremely faint and diffuse
in C2 images.  C/2006 U9 was small and stellar in appearance (mag
about 7) with big data gaps in C3 images, but slightly diffuse (mag
6.5-7) with a hint of a short tail in C2 images.  C/2006 U10 was
stellar in appearance and very faint, fading out as it neared the
sun.  C/2001 U11 appeared stellar and reached mag about 6.5 in C3
images, while it showed a stubby tail in C2 images.

 Comet        2006 UT       R.A.(2000)Decl.   Inst.  F    MPEC
 C/2006 T10   Oct. 12.538  13 03.0   - 8 15   C2     BZ   2006-X25
 C/2006 U8         16.532  13 14.8   -11 01   C3/2   TS   2006-X25
 C/2006 U9         19.679  13 20.4   -11 47   C3/2   SF   2006-X25
 C/2006 U10        20.104  13 34.6   - 8 45   C2     TH   2006-X26
 C/2006 U11        24.138  13 36.1   -13 37   C3/2   HS   2006-X26


COMET C/2006 X1 (LINEAR)
     An apparently asteroidal object discovered by the LINEAR
survey, and posted on the Minor Planet Center's 'NEOCP' webpage,
has been found to have a coma of diameter 12" surrounding a central
condensation of diameter 5" on CCD images taken on Dec. 11.94-11.99
UT by P. Birtwhistle (Great Shefford, Berkshire, England, 0.40-m
Schmidt-Cassegrain reflector).  A. R. Gibbs reports that four
co-added 120-s unfiltered CCD images taken in poor seeing with the
Mt. Lemmon 1.5-m reflector on Dec. 12.2 show a compact coma and a
narrow 90" tail in p.a. 260 deg.

     2006 UT             R.A. (2000) Decl.       Mag.
     Dec. 11.12465    0 10 06.42   +41 10 59.8   19.2

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2006-X41.

     T = 2007 June 24.183 TT          Peri. = 141.659
                                      Node  = 259.330   2000.0
     q = 6.01297 AU                   Incl. =  40.731

                      (C) Copyright 2006 CBAT
2006 December 12               (8783)            Daniel W. E. Green

Read IAUC 8782  SEARCH Read IAUC 8784

View IAUC 8783 in .dvi, .ps or .PDF format.


Our Web policy. Index to the CBAT/MPC/ICQ pages.


Valid HTML 4.01!