Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8466: COMET C/2005 B1 (CHRISTENSEN); C/2004 W7-W11, X4-X9

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 8465 SEARCH Read IAUC 8467

View IAUC 8466 in .dvi, .ps or .PDF format.
IAUC number 

                                                  Circular No. 8466
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/2005 B1 (CHRISTENSEN)
     E. J. Christensen reports his discovery of a comet (discovery
observation below; 10" tail in p.a. 250 deg) on images taken with
the 0.68-m Schmidt telescope in the course of the Catalina Sky
Survey.  Following posting on the 'NEO Confirmation Page', J. Young
reported that his CCD images taken through moderate cirrus clouds
with the Table Mountain 0.6-m reflector on Jan. 16.5 UT show a 5"
coma and a broad tail 25" long spanning p.a. 240-260 deg.  M. Tichy
found the object to be diffuse with a tail in p.a. 255 deg on
images taken by himself and J. Ticha with the Klet 1.06-m telescope.

     2005 UT             R.A. (2000) Decl.       Mag.
     Jan. 16.46322   14 28 27.36   +19 00 31.6   17.4

The available astrometry, the following very uncertain parabolic
orbital elements, and an ephemeris appear on MPEC 2005-B13.

     T = 2005 Feb. 14.399 TT          Peri. =  34.624
                                      Node  = 192.641   2000.0
     q = 5.28914 AU                   Incl. =  86.060


COMETS C/2004 W7-W11, X4-X9 (SOHO)
     Further to IAUC 8458, following are the initial observations
of additional comets found on SOHO website images (XG = X. Gao; RM
= R. Matson; SF = S. Farmer, Jr.); all are Kreutz sungrazers except
for C/2004 W10 (which belongs to the Marsden group) and C/2004 X7
(which does not belong to a known group).

 Comet        2004 UT      R.A.(2000)Decl.   Inst.  F    MPEC
 C/2004 W7    Nov. 24.096  15 51.3  -24 34   C3/2   TH   2005-A12
 C/2004 W8         24.129  15 59.8  -22 18   C2     XL   2005-A12
 C/2004 W9         28.435  16 18.7  -23 07   C2     XG   2005-A12
 C/2004 W10        29.102  16 18.4  -21 20   C2     RK   2005-A13
 C/2004 W11        30.618  16 28.8  -23 32   C2     RM   2005-A13
 C/2004 X4    Dec.  2.971  16 35.9  -25 46   C3/2   SF   2005-A13
 C/2004 X5          4.976  16 50.6  -24 19   C2     TH   2005-A13
 C/2004 X6          6.643  16 58.2  -24 30   C2     TH   2005-A40
 C/2004 X7          7.185  17 01.4  -21 35   C2     RK   2005-A40
 C/2004 X8          8.811  17 08.2  -24 47   C2     RM   2005-A40
 C/2004 X9         13.242  17 27.7  -25 04   C2     KB   2005-A40

                      (C) Copyright 2005 CBAT
2005 January 17                (8466)            Daniel W. E. Green

Read IAUC 8465 SEARCH Read IAUC 8467

View IAUC 8466 in .dvi, .ps or .PDF format.

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

Valid HTML 4.01!