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出典:『Wikipedia』 (2011/06/21 05:16 UTC 版)

英語による解説

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SN 2005ap was an extremely energetic type II supernova. It is reported to be the brightest supernova yet recorded, twice as bright as the previous record holder, SN 2006gy. § It was discovered on 3 March 2005 on unfiltered optical images taken with the 0.45 m ROTSE-IIIb (Robotic Optical Transient Search Experiment) telescope, which is located at the McDonald observatory in West Texas, by Robert Quimby as part of the Texas Supernova Search that also discovered SN 2006gy. Although it was discovered before SN 2006gy it was not recognised as being brighter until October 2007. As it occurred 4.7 billion light years from Earth it was not visible to the naked eye.