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IAUC 7264: 1999 S3; 1999dq

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                                                  Circular No. 7264
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 S3
     M. Bezpalko reports the discovery by LINEAR of a comet.
Additional observations have been reported following posting on the
NEO Confirmation Page:

     1999 UT             R.A. (2000) Decl.        m1    Observer
     Sept.24.34373    1 21 56.90   +46 35 31.1          Bezpalko
          24.35812    1 21 53.29   +46 36 10.2            "
          24.38689    1 21 46.26   +46 37 29.8            "
          24.78644    1 20 09.06   +46 55 47.5          Sarounova
          24.78924    1 20 08.37   +46 55 55.4            "
          24.79205    1 20 07.67   +46 56 03.1            "
          24.79428    1 20 07.15   +46 56 09.0          Korlevic
          24.79486    1 20 06.97   +46 56 10.8   13.5   Sarounova
          24.79786    1 20 06.29   +46 56 19.2          Korlevic
          24.80102    1 20 05.45   +46 56 28.1            "
          24.80641    1 20 04.13   +46 56 43.0          Ticha
          24.80759    1 20 03.84   +46 56 46.2            "
          24.80863    1 20 03.58   +46 56 49.1   13.4     "
          24.80984    1 20 03.28   +46 56 52.5            "

M. Bezpalko, M. Blythe, F. Shelly, and M. Elowitz (Lincoln
  Laboratory ETS, Socorro).  Measurers J. Stuart, H. Viggh, and R.
  Sayer.  1.0-m f/2.15 reflector + CCD.  Tail in p.a. 200 deg;
  magnitude 15.6-15.7.
L. Sarounova, D. Ondrich, and M. Prouza (Ondrejov).  0.65-m f/3.6
  reflector + CCD.  Coma diameter 35"; rather wide tail 3' long in
  p.a. 200 deg; m_2 = 14.8.
K. Korlevic (Visnjan).  0.41-m f/4.3 reflector + CCD.  Coma
  diameter 40"; tail 60" long in p.a. 160-190 deg; magnitude 14.8.
J. Ticha and M. Tichy (Klet).  0.57-m f/5.2 reflector + CCD.  Tail
  > 18" long in p.a. 225 deg.


SUPERNOVA 1999dq IN NGC 976
     CCD magnitude estimates, unfiltered unless otherwise noted:
Sept. 4.719 UT, 15.2 (S. Yoshida and K. Kadota, Ageo, Saitama,
Japan); 10.130, V = 14.28 +/- 0.02 (D. Hanzl, Brno, Czech
Republic); 11.076, 15.2 (E. Prosperi, Larciano, Italy).

                      (C) Copyright 1999 CBAT
1999 September 24              (7264)            Daniel W. E. Green

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