------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 2831 2012 Jun 21 16.22UT 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 Backup: gmh@wdcc1.bnsc.rl.ac.uk WORLD WIDE WEB http://www.theastronomer.org ------------------------------------------------------------------- ANOTHER POSSIBLE VOORWERP R. Steinberg, Drexel University, recalls on The Astronomer's Telegram 4185 details of a large object close to the spiral galaxy IC 2497 in Leo Minor, lead author C. Lintott: http://arxiv.org/abs/0906.5304 using data from the Sloan Digital Sky Survey. The object, now known as Hanny's Voorwerp, is not definitively understood, but has been hypothesised to be a result of interaction of radiation from a transient bright quasar event in the nearby galaxy with circumgalactic material. He now reports the discovery of a somewhat similar galaxy-sized green object near the z=.0583 Sc galaxy PGC86888. Like Hanny's Voorwerp, the object appears bright in the SDSS g band, which may be an indication of the presence of unusually strong OIII 4959-5007 emission lines. A RGB image (3 hours for each of the three filters) was obtained with a 0.3 m reflector at the Blue Mountain Vista Observatory (PA). Location of brightest component: (RA,Dec) = (136.26911,32.62030). New Voorwerp: http://www.physics.drexel.edu/~steinberg/astro2/interesting%20galaxies/ne w_voorwerp/voorwerp-RGB-180-180-180-crop.jpg SUPERNOVA 2012bq (CSS) 2012bq Mar 30.23 10 16 38.65 -06 46 36.2 17.6 2.5"W 1.0"N L. Tomasella: spectrum Mar 31 type-IIn similar to SN 1995G SUPERNOVA 2012br (CSS) 2012br Mar 28.31 12 24 17.02 +18 55 29.3 17.8 L. Tomasella: spectrum Apr 1 type-IIP similar to SN 2004et SUPERNOVA 2012bs (CSS) 2012bs Mar 28.42 15 23 01.70 +07 11 41.2 18.1 1.0"E 2.9"N L. Tomasella: spectrum Apr 1 type-Ia near maximum SUPERNOVA 2012bt IN IC 4674 (CHASE) 2012bt Mar 7.30 18 08 13.05 -62 23 54.2 16.5: 0.2"E 10.8"S N. Morrell: spectrum Mar 29 type-Ic similar to SN 2004aw one month after maximum light SUPERNOVA 2012bu IN NGC 3449 (SIDING SPRING SURVEY) 2012bu Jan 16.69 10 52 56.61 -32 56 07.1 18.4 37.2"E 27.7"S N. Morrell: spectrum Mar 30 evolved type-II-plateau supernova Guy M Hurst