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IAUC 7353: 2000F; 2000E; IY UMa; 2000B

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IAUC number

                                                  Circular No. 7353
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 617-495-7244/7440/7444 (for emergency use only)

     M. Papenkova, and W. D. Li, University of California at
Berkeley, on behalf of the Lick Observatory Supernova Search (cf.
IAUC 6627, 7126) report the discovery of an apparent supernova on
unfiltered images taken on Jan. 29.2 and 30.2 (both with mag about
17.5) with the 0.8-m Katzman Automatic Imaging Telescope (KAIT).
SN 2000F is located at R.A. = 3h12m52s.71, Decl. = +4 42'34".4
(equinox 2000.0), which is 21".2 east and 8".8 north of the nucleus
of IC 302.  An unfiltered KAIT image taken on Jan. 10.2 already
showed a hint of the new object, while an image taken on 1999 Dec.
30.3 showed nothing at the position of SN 2000F (limiting mag 19.0).

     V. F. Polcaro, CNR-IAS, Rome; and A. de Blasi, R. Gualandi,
and S. Galleti, Bologna Astronomical Observatory (BAO), report:
"Low- and intermediate-resolution spectra of SN 2000E (cf. IAUC
7351) were taken with the 1.52-m telescope (+ BFOSC) at Loiano on
Jan. 28 and 30.  These spectra clearly show a narrow absorption
feature at 627.8 +/- 0.3 nm.  This feature is compatible, inside
the instrumental uncertainties, with an H-alpha absorption at the
host galaxy redshift.  If this hypothesis is true and if SN2000E
will behave as did type-Ia SN 1990M, the feature will disappear in
a few days.  Further observations are urgently needed."
     Further to the announcement of SN 2000E on IAUC 7351, E.
Brocato adds some additional information.  On line 5, for  R.A. =
20h37m13s.8  read  R.A. = 20h37m13s.77.  On Jan. 25.737 UT, J =
14.5 +/- 0.1.  The limiting magnitudes for the images that did not
show SN 2000E are as follows:  Digital Sky Survey, about 21; 1999
Dec. 18.78, V = 18.0; 2000 Jan. 6.74, J = 19.16, H = 19.38.

     N. N. Samus, Sternberg Astronomical Institute, Moscow, on
behalf of IAU Commission 27, informs us that the new cataclysmic
variable reported by Uemura et al. on IAUC 7349 has been given the
designation IY UMa.

     Unfiltered CCD magnitudes:  Jan. 21.194 UT, 16.70 (M. Suarez,
Las Palmas, Canary Islands); 25.719, 15.8 (S. Yoshida and K.
Kadota, Ageo, Saitama, Japan).

                      (C) Copyright 2000 CBAT
2000 January 31                (7353)            Daniel W. E. Green

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