Phi Puma

Phi Puma was a nova star. On reference stardate 1/27, Phi Puma went supernova. By the year 2165, a concussion ring reached Bayard's Planet with a diameter of least ninety light years. 

By 2364, the USS Enterprise-D computer stored records of the location of Phi Puma and star chart depicting the concusssion ring expansion. During Data's computer record search aboard the USS Enterprise (NCC-1701-D), in that year, this chart was viewed. Outpost 63 scanned this information from the Enterprise computer.