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IAUC 8554: P/2005 JD_108; THE EDGAR WILSON AWARD 2005; P/2005 JQ_5

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IAUC number

                                                  Circular No. 8554
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     K. J. Lawrence, Jet Propulsion Laboratory, reports the NEAT
discovery of a comet on NEAT images taken on June 28.4 UT, the
object showing a fan-shaped tail about 10" long in p.a. 270 deg.
Following posting on the "NEO Confirmation Page", J. E. McGaha
(Tucson, AZ, 0.62-m f/5.1 reflector) reports that his 300-s CCD
exposures taken on June 30.33-30.35 show a stellar nucleus with a
uniform round coma 7" in diameter and a 4"-long fan-shaped tail in
p.a. 215 deg.  J. Young (Table Mountain, 0.6-m reflector) adds that
his CCD frames taken on June 30.4 show a small but bright 5"-
diameter coma and a faint, straight 16" tail in p.a. 255 deg.  The
Minor Planet Center has noted that this object was observed
incidentally (as apparently asteroidal) by the Catalina Sky Survey
on May 12, by LONEOS on May 13, and by the NEAT survey on June 21
-- the first two nights of observations being published with the
designation 2005 JD_108 on MPS 132975.

     2005 UT             R.A. (2000) Decl.       Mag.   Observer
     May  12.42963   21 10 23.71   -12 45 21.7   18.9   Catalina
     June 28.39944   21 16 54.32   -11 31 20.6   18.4   NEAT

The new astrometry, the following elliptical orbital elements, and
an ephemeris appear on MPEC 2005-M65.

     T = 2005 Aug.  1.3467 TT         Peri. =  88.9493
     e = 0.376713                     Node  = 224.3811  2000.0
     q = 4.032734 AU                  Incl. =   3.2761
       a =  6.470112 AU    n = 0.0598875    P =  16.46 years

     The Smithsonian Astrophysical Observatory announces that the
2005 Edgar Wilson Award for the discovery of comets (cf. IAUC 6936,
8372) is being divided among the following two individuals:  Roy A.
Tucker, Tucson, AZ, U.S.A., for C/2004 Q1; and Donald Edward
Machholz, Jr., Colfax, CA, U.S.A., for C/2004 Q2.

     J. J. Gonzalez, Leon, Spain, reports that he has detected
this comet visually at total mag 10.3-10.5 (coma diameter 4') on
June 25.94 (altitude 11 deg) and 26.94 UT (altitude 8 deg) with a
0.20-m reflector.

                      (C) Copyright 2005 CBAT
2005 June 30                   (8554)            Daniel W. E. Green

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