Central Bureau for Astronomical Telegrams

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IAUC 7275: 1999ef; 1999eg; 1999by, 1999dk, 1999dq

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                                                  Circular No. 7275
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)


SUPERNOVA 1999ef IN UGC 607
     Jean Mueller reports her discovery of a supernova (mag about
17.5) on a red plate taken by K. Rykoski and herself on Oct. 9 UT
with the 1.2-m Oschin Schmidt Telescope in the course of the
Palomar Outer Solar System Ecliptic (POSSE) Survey.  SN 1999ef is
located at R.A. = 0h58m46s.2, Decl. = +12o44'45" (equinox 2000.0),
which is 20" east and 10" south of the nucleus of UGC 607.  There
is no object at this position on the Digitized Sky Survey or on
second Palomar Sky Survey plates.  SN 1999ef also appears on a
POSSE plate taken on Oct. 10.
     M. J. Kuchner, Astronomy Department, California Institute of
Technology, reports that a spectrum was taken by A. Bouchez and
himself on Oct. 10 UT with the 5-m Hale telescope (+ double
spectrograph) at Palomar.  D. Branch identifies the object as a
normal post-maximum type-Ia supernova from the spectrum.


SUPERNOVA 1999eg IN IC 1861
     G. M. Hurst, Basingstoke, England, reports the discovery by
Mark Armstrong, Rolvenden, of an apparent supernova (mag about
17.5) on an unfiltered CCD frame taken on Oct. 4.078 UT with a
0.30-m reflector in the course of the U.K. Nova/Supernova Patrol.
In response to an alert, N. James, Chelmsford, recorded a very weak
image on Oct. 10.87 (0.3-m reflector).  Further images by S.
Foulkes, Ashperton Village, and Armstrong on Oct. 11 confirmed the
presence of the object.  Armstrong measured the following precise
position from his latest image on Oct. 11.875:  R.A. = 2h53m08s.39,
Decl. = +25o29'24".2 (equinox 2000.0); the discovery image yields
position end figures 08s.45, 23".7.  Hurst notes that the object is
absent from the Palomar Sky Surveys, and no candidate appears in
the USNO A2.0 catalogue.


SUPERNOVAE 1999by, 1999dk, 1999dq
     Unfiltered CCD magnitudes from L. Kiss, K. Sarneczky, and G.
Szabo, Piszkesteto, Konkoly Observatory:  SN 1999by in NGC 2841,
Sept. 24.07 UT, 18.6 +/- 0.3; SN 1999dk in UGC 1087, 23.88, 15.7
+/- 0.3; SN 1999dq in NGC 976, 23.87, 14.7 +/- 0.2.

                      (C) Copyright 1999 CBAT
1999 October 12                (7275)            Daniel W. E. Green

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