出典:Wikipedia
出典:『Wikipedia』 (2011/04/28 01:55 UTC 版)
GRB 080319B was a remarkable gamma-ray burst (GRB) detected by the Swift satellite at 06:12 UTC on March 19, 2008. The burst set a new record for the farthest object that could be seen with the naked eye; it had a peak apparent magnitude of 5.8 and remained visible to human eyes for approximately 30 seconds. The magnitude was brighter than 9.0 for some 60 seconds.