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IAUC 8533: C/2005 K2

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                                                  Circular No. 8533
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 K2 (LINEAR)
     M. Bezpalko reports the LINEAR discovery of a comet with a
short tail in p.a. 270 deg.  Following posting on the 'NEO
Confirmation Page', R. Hutsebaut (Bruxelles, Belgium; remotely
using the 0.25-m reflector at 'New Mexico Skies Observatory')
writes that his CCD images from May 20.2-20.4 UT show the object to
be very diffuse with a tail 1' long in p.a. 270 deg.  Also, J.
Young (Table Mountain Observatory, Wrightwood, CA, 0.6-m reflector)
writes that his CCD images taken on May 20.4 show a large,
elongated, very diffuse 8" coma of mag 17.5 with little central
condensation and a faint, broad, 40"-long tail spanning p.a.
255-275 deg.

     2005 UT             R.A. (2000) Decl.       Mag.   Observer
     May  19.35543   22 06 50.32   +74 57 29.4   18.7   LINEAR
          19.36469   22 06 53.42   +74 58 09.3   18.8     "
          19.37391   22 06 55.75   +74 58 49.0   19.2     "
          19.38318   22 06 59.03   +74 59 31.5   19.0     "
          20.23898   22 11 51.51   +76 03 38.4   18.1   Hutsebaut
          20.34618   22 12 32.09   +76 11 56.7   17.6     "
          20.35156   22 12 35.05   +76 12 19.9   17.3     "
          20.39306   22 12 50.39   +76 15 32.4   17.5   Young
          20.40463   22 12 54.65   +76 16 26.4            "
          20.41898   22 13 00.62   +76 17 37.3            "
          20.42951   22 13 04.86   +76 18 27.9            "
          20.43854   22 13 08.32   +76 19 08.8            "
          20.44537   22 13 10.81   +76 19 41.7            "

Very preliminary parabolic orbital elements (H_7.5 = 18.0):

     T = 2005 June 29.009 TT          Peri. = 206.479
                                      Node  =  57.161   2000.0
     q = 0.67950 AU                   Incl. =  94.371

2005 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase   Mag.
May  20    22 10.4    +75 45.4   0.807   1.048   69.3   64.6   17.7
     22    22 25.7    +78 24.9   0.760   1.020   68.6   67.5   17.5
     24    22 54.1    +81 19.3   0.714   0.992   67.6   70.7   17.2
     26     0 00.3    +84 17.5   0.669   0.965   66.4   74.2   17.0
     28     3 04      +86 04.5   0.626   0.938   64.9   77.9   16.8
     30     6 25.3    +83 55.1   0.587   0.912   63.0   82.0   16.5

                      (C) Copyright 2005 CBAT
2005 May 20                    (8533)            Daniel W. E. Green

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