SN2009io – discovery

Tom Boles

SN 2009io in UGC 11666, discovered 2009 August 13. Mag. 18.9. Nothing is present at this position on Boles’ images from 2008 August 4 and 2007 October 6 (limiting mag. 19.5), nor on Digitized Sky Survey plates from 1991 July 18 (limiting red mag. 21.0) and 1992 October 16 (limiting blue mag. 20.5).

Tom Boles’ 125th supernova discovery : see the graph of discoveries and the accompanying e-bulletin.