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THE ASTRONOMER Electronic Circular No 1490      2000 Jan 19 20.22UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                    http://www.demon.co.uk/astronomer
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SUPERNOVA 2000C IN NGC 2415
Independent discoveries of a new apparent supernova in NGC 2415
have been made by Steven Foulkes, Ashperton Village, England,
on Jan. 8.789 UT (communicated via G. Hurst) and by Marco
Migliardi, Cortina, Italy, on Jan. 12.95 (via M. Villi).  Foulkes'
discovery was made on an unfiltered CCD image taken with a 0.26-m
reflector in the course of the U.K. Nova/Supernova Patrol.
Migliardi obtained the following position for SN 2000C from his
discovery image:  R.A. = 7h36m57s.09, Decl. = +35o14'38".8 (equinox
2000.0), which is 8".3 east and 7".4 north of the nucleus of
NGC 2415.
W.Li, University of California at Berkeley, reports that a
prediscovery image (limiting mag 19.5-20.0) of SN 2000C appears on
a CCD frame taken on Jan. 8.3 with the Katzman Automatic Imaging
Telescope (KAIT) at Lick Observatory, from whence he provides the
following position end figures:  56s.99, 37".2.  Li adds that
although SN 2000C is very close to the location of SN 1998Y (cf.
IAUC 6850), comparison with KAIT images of SN 1998Y shows that the
new object is slightly north and east of SN 1998Y (see
http://astron.berkeley.edu/~bait/2000/ngc2415.html); he also notes
that SN 1998Y faded from view on KAIT images in Oct. 1998.
Estimated magnitudes for SN 2000C:  1999 Dec. 15.995, [17:
(Foulkes); 26, [19.0 (Li); 30, [18.5 (Li); 2000 Jan. 4, 19.5-20.0
(Li; only hint of new object); 8.3, 18.0: (Li); 8.789, 15.6:
(Foulkes); 12.95, 15.5 (Migliardi).

Editor: Our sincere congratulations to Steve Foulkes on his
first discovery for the UK Nova/Supernova Patrol!

SUPERNOVA 2000B IN NGC 2320
P. Antonini, Avignon, France; and F. Colas and E. Frappa, Pic
du Midi Observatory, report the discovery of an apparent supernova
(mag 16.5) on CCD images taken with the Bedouin Observatory 0.305-m
telescope by Antonini on Jan. 11.0 UT.  SN 2000B is located at R.A.
= 7h05m40s.73, Decl. = +50o35'10".5 (equinox), which is 14" west and
19" north of the nucleus of NGC 2320.  SN 2000B was confirmed (mag
16.0) via CCD observation on Jan. 13.85 with the 1.05-m telescope
at Pic du Midi.  The new star does not appear on the Digital Sky
Survey (limiting mag about 21) or the Buil-Thouvenot Atlas.
Additional photometry of SN 2000B by Colas and Frappa:  Jan. 14.03,
R = 16.35; 14.80, B = 16.59 +/- 0.04; 14.84, V = 16.49 +/- 0.02;
14.89, R = 16.26 +/- 0.02; 14.94, I = 16.41 +/- 0.04; 16.84, V =
16.19; 16.92, R = 16.01; 16.97, I = 16.27; 17.01, R = 16.36.  W. Li,
University of California, reports that a prediscovery KAIT CCD
image taken on Jan. 8.3  shows the new object at mag about 17.5.
IAUC 7347

Guy M Hurst