Supernova 2010hj in Pgc 67413
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Date
2010
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Abstract
Report the discovery of an apparent supernova in unfiltered Siding Spring Survey (SSS) images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010hj Aug. 4.61 21 49 09.84 -59 02 23.2 17.1 5".5 W, 8".2 S Nothing was visible at this position on an SSS image from 2009 Oct. 1.50 UT (limitiing mag 18.9), but 2010hj was detected again in SSS images on Aug. 29.59 (no magnitude provided). The host galaxy appears to be PGC 67413 = ESO 145-G16. Joseph Brimacombe, Cairns, Australia, reports that ten stacked 600-s CCD images (limiting magnitude 20) taken remotely with a 32-cm RCOS telescope (+ STL6K camera + clear filter) at the Macedon Ranges Observatory near Melbourne, Australia, on Aug. 29.727 show the new object to be at mag 18.3 and located approximately 7" west and 7" south of the presumed host-galaxy nucleus. Another stacked image (seven 1200-s frames; limiting magnitude 20), taken by Brimacombe on Sept. 2.636 with a 40-cm RCOS telescope (+ U16 camera + red filter) at the Coral Towers Observatory (Cairns), yields mag 18.6 for 2010hj; the Sept. 2 stacked image has been posted at the following website URL: http://www.flickr.com/photos/43846774@N02/4952444311/....