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IAUC 7302: 1999 V1; P/1999 U3; 63P

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                                                  Circular No. 7302
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET 1999 V1
     C. W. Hergenrother, Lunar and Planetary Laboratory, reports the
discovery of another comet by the Catalina Sky Survey.

     1999 UT             R.A. (2000) Decl.        m1    Observer
     Nov.  5.43943    9 37 11.47   +11 32 03.7   17.6   Hergenrother
           5.44850    9 37 12.27   +11 31 56.6   17.8     "
           5.45751    9 37 12.55   +11 31 52.2   17.5     "
           5.46704    9 37 13.18   +11 31 45.8   18.0     "
           6.44715    9 38 09.20   +11 22 20.9   18.0     "
           6.45209    9 38 09.55   +11 22 18.0   17.6     "
           6.47319    9 38 10.79   +11 22 05.8          Shelus
           6.48359    9 38 10.98   +11 21 59.7            "
           6.49391    9 38 11.62   +11 21 52.8            "

C. W. Hergenrother (Catalina Sky Survey).  0.41-m Schmidt + CCD.  Apparent
   faint tail on single frames.  On a 240-s coadded exposure on Nov. 5 there
   showed a 13" coma and a 60" tail in p.a. 300 deg.
P. J. Shelus (McDonald Observatory).  0.76-m reflector with prime focus
   corrector + LF1 CCD.  Fuzzy head and faint tail roughly in p.a. 320 deg.


COMET P/1999 U3 (LINEAR)
     The elliptical elements below are from MPEC 1999-V17.  That the comet
is of short period has also been pointed out by S. Nakano.

     T = 1999 Nov.  5.941 TT          Peri. = 102.660
     e = 0.65300                      Node  = 309.650   2000.0
     q = 1.87220 AU                   Incl. =  20.416
       a =  5.39542 AU     n = 0.078644     P =  12.53 years


COMET 63P/WILD 1
     Nakano also reports observations by T. Kojima, Chiyoda, of this
13-year-period comet, missed at its 1986 return.  These observations confirm
a single-night detection at mag 22.4 by Hergenrother (1.5-m Catalina
reflector) on Feb. 14.  The prediction on MPC 27082 requires correction by
Delta T = -0.35 day.  Further details are on MPEC 1999-V18.  Kojima (0.25-m
f/6.3 reflector) reported the comet at m1 = 16.5 and as diffuse without a
tail on Oct. 24, at m1 = 15.9 and diffuse with condensation and a coma
diameter of 30" on Nov. 4.

                      (C) Copyright 1999 CBAT
1999 November 6                 (7302)              Brian G. Marsden

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