SIMBAD references

L. A. G. Monard, Pretoria, South Africa, reports his discovery of an apparent supernova (mag 17.5) on several unfiltered CCD images obtained on May 13.005 UT at the Klein Karoo Observatory. The new object, which was designated PSN J18435900-6159460 when posted on the Central Bureau's TOCP webpage and is here designated SN 2011di based on the spectroscopic report below, is located at R.A. = 18:43:59.06, Decl. = -61:59:46.3, which is 9" west and 21" south of the core of the SBb-type galaxy IC 4754; Monard notes that a faint star just south of the galaxy's core must somewhat affect the accuracy of the derived position. Nothing is visible at this position on Digitized Sky Survey images (limiting red mag 20.5) or on 2010 images taken at Monard's Bronberg Observatory (limiting mag 18.5 and fainter). Additional magnitudes for 2011di: 2011 Apr. 30.102, [18.8 (Monard); May 14.894, 16.5 (Monard); 15.134, 16.5 (Monard); 15.875, 16.2 (Monard); 17.880, 15.7 (Monard); 22.740, 14.8 (Joseph Brimacombe, Coral Towers Observatory, Cairns, Australia, 30-cm telescope + STL6K camera + red filter; position end figures 59s.12, 45".7); 23.725, 14.7 (Brimacombe); 24.658, 14.7 (Brimacombe); 25.756, 14.7 (Brimacombe). Brimacombe's May 22 image is posted at the following website URL: http://www.flickr.com/photos/43846774@N02/5748796850/.