SIMBAD references

Further to CBET 2721, M. Kandrashoff, J. Kelly, S. B. Cenko, W. Li, and A. V. Filippenko report the LOSS discovery of an apparent supernova on unfiltered KAIT images:

---------------------------------------------------------------------------— SN 2011 UT R.A. (2000.0) Decl. Mag. Offset ---------------------------------------------------------------------------— 2011dm June 15.42 21 56 41.59 +73 17 48.9 18.8 73" E, 131" N ---------------------------------------------------------------------------—

The object was designated PSN J21564159+7317489 when posted at the Central Bureau's TOCP webpage and is here designated SN 2011dm based on the spectroscopic report below. Additional KAIT magnitudes for 2011dm: 2010 June 8.46 UT, [19.8; 2011 June 18.48, 16.5.

Joseph Brimacombe, Cairns, Australia, reports that stacked unfiltered CCD images obtained on June 20.399 UT yield mag 16.4 and position end figures 41s.58, 48".5 for PSN J21564159+7317489 = SN 2011dm. His image is posted at URL http://www.flickr.com/photos/43846774@N02/5855725626/.

Federica Luppi reports that stacked CCD images taken on June 20.954 UT with a 0.36-m f/7.9 reflector (+ Bessell R filter) at the Schiaparelli Observatory in Italy yield mag 15.8 and position end figures 41s.62, 48".7 for PSN J21564159+7317489 = SN 2011dm. Nothing is visible at this position on Digitized Sky Survey red, blue, and infrared images from 1987 Apr. 21, 1992 June 1, and 1991 May 4, respectively (no limiting magnitudes provided). Luppi's image is posted at the following website URL: http://www.astrogeo.va.it/pub/TOCP/PSN_U11861.jpg.