------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2663 2010 Aug 01 16.15UT 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 Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- V592 HERCULIS: POSSIBLE OUTBURST Maciej Reszelski, Poland using a 0.20-m reflector + CCD reports a rare outburst of the WZ-Sge star V592 Herculis. On 2010 July 31.886UT he measured the magnitude as 14.16CR. Arne Henden reports on an AAVSO alert notice that this WZ Sge variable last had a superoutburst on 1998 August 26 when it reached magnitude 12. In quiescence, V592 Her is fainter than 20th magnitude. V592 Her is located at RA 16 30 56.37 DEC +21 16 58.2 (J2000). An independent confirmation has so far not been received and we therefore appeal for further observations. Guy Hurst reports that an image obtained with the Bradford Robotic Telescope 0.40-m Schmidt-Cassegrain on July 26.983UT did not show the star to a limit of 16.2V. SUPERNOVA 2010ed IN UGC 10728 Discovery by LOSS of a possible supernova (CBET 2324): SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ed Jun 12.43 17 09 24.13 +22 12 48.1 18.7 12.4"W, 2.7"S P. Challis et. al., Harvard-Smithsonian Center for Astrophysics, report that a CCD spectrum of June 16 UT with the 6.5-m MMT telescope shows it to be a type-Ia supernova. It may be similar to the luminous supernova 1999aa although the apparent magnitude and the distance modulus of 36.55 suggests that M = -17.85, which is quite dim for a luminous type-Ia supernova. SUPERNOVA 2010ee IN UGC 8652 Discovery by LOSS of a possible supernova (CBET 2326): SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ee Jun 14.29 13 40 17.99 +26 21 11.9 19.0 0.4"E, 13.1"N SUPERNOVAE 2010ef, 2010eg, AND 2010eh CRTS discoveries of supernovae (CBET 2327): SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ef Jun 5.33 16 28 52.10 +26 22 29.0 19.1 0.7"E, 0.9"S 2010eg Jun 7.75 22 15 42.56 - 9 20 17.3 18.5 1.6"E, 1.2"N 2010eh Jun 13.38 20 48 13.54 - 5 48 13.0 17.4 0.3"W, 30.4"N J. Priesto reports the following classifications: 2010ef is a normal type-Ia supernova around maximum light 2010eg is a type-Ia supernova also around maximum 2010eh looks like a type-Ic supernova around maximum SUPERNOVAE 2010ei, 2010ej, AND 2010ek LOSS supernova discoveries (CBET 2329): SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ei Jun 12.34 14 54 07.69 +42 32 54.6 17.5 0.2"W, 1.5"N 2010ej Jun 15.30 14 13 56.74 +31 32 25.1 19.2 2.3"E, 0.5"N 2010ek Jun 15.48 22 48 40.96 +27 37 11.4 18.8 3.1"E, 30.3"N SUPERNOVA 2010el IN NGC 1566 Discovery by Berto Monard of a possible supernova (CBET 2334): SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010el Jun 19.14 04 19 58.83 -54 56 38.5 16.8 13 "W, 22 "S Guy M Hurst