IAUC 7397: 2000bh; XTE J1118+480; 2000E

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                                                  Circular No. 7397Central Bureau for Astronomical TelegramsINTERNATIONAL ASTRONOMICAL UNIONMailstop 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 0081-0304Phone 617-495-7244/7440/7444 (for emergency use only)SUPERNOVA 2000bh IN ESO 573-14     J. Maza, University of Chile; and M. Hamuy, University ofArizona, report the discovery by R. Antezana, on a 30-minunfiltered T-Max 400 film taken by L. Gonzalez on Apr. 5.23 UT withthe University of Chile's Maksutov telescope, of a supernova (m_pvabout 16.0) located at R.A. = 12h21m15s.14, Decl. = -21o59'55".7(equinox 2000.0), which is about 8" west and 11" south of thenucleus of the host galaxy (ESO 573-14, z = 0.023).  The supernovawas confirmed by M. M. Phillips (Carnegie Institution ofWashington) from J and H images taken with the Las Campanas 1.02-mSwope telescope on Apr. 6, and by T. B. Williams (RutgersUniversity) from BVRI images taken with the Cerro TololoInteramerican Observatory 0.9-m telescope on Apr. 7.22.  Using the2.54-m DuPont telescope at Las Campanas Observatory on Apr. 7,L. C. Ho (Carnegie Institution of Washington) obtained a spectrum(range 320-900 nm) that reveals SN 2000bh to be a type-Ia eventnear maximum light.XTE J1118+480     L. Cook, Concord, CA; J. Patterson, Columbia University; D.Buczynski, Condor Brow Observatory; and R. Fried, BraesideObservatory, report for the Center for Backyard Astrophysics (cf.Patterson 1998, Sky Tel. 96(4), 77) that a 5-night V-band lightcurve of the optical counterpart (IAUC 7390) shows a regularperiodic variation with a period of 0.1706(9) day and a fullamplitude of 0.061(5) mag.  The signal is smooth and sinusoidal,suggesting an x-ray heating effect in a close binary with anorbital period of 0.1706 day.     Visual magnitude estimates:  Mar. 31.844 UT, 13.0 (P. Schmeer,Bischmisheim, Germany); Apr. 2.123, 12.9 (Schmeer); 2.902, 12.9(Schmeer); 4.010, 13.0 (Schmeer); 6.838, 12.7 (K. Hornoch,Lelekovice, Czech Rep.).SUPERNOVA 2000E IN NGC 6951     CCD magnitudes, unfiltered unless otherwise noted: Jan. 28.740UT, R = 14.2 +/- 0.1 (L. Kiss, K. Sarneczky, and K. Sziladi,Piszkesteto station, Konkoly Observatory); 28.816, 14.3 (S. Yoshidaand K. Kadota, Ageo, Saitama, Japan); Mar. 16.11, 16.0 +/- 0.1(Sarneczky, Sziladi, and Kiss); 29.024, 15.8 (Hornoch); Apr. 3.028,16.0 (Hornoch).                      (C) Copyright 2000 CBAT2000 April 8                   (7397)            Daniel W. E. Green

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