Phi Puma

From Memory Alpha, the free Star Trek reference

Phi Puma is a star that has undergone a supernova.

On several occasions in 2364, viewscreen readouts aboard the USS Enterprise-D showed the location of Phi Puma's nova, in the form of star charts from the Enterprise library computer. (TNG: "The Naked Now", "The Last Outpost", "Datalore", "Conspiracy")

[edit] Background

The Enterprise computer's star chart was a drawing by Rick Sternbach that had originally been published, years earlier, on page 151 of the reference titled Spaceflight Chronology. This chart showed Phi Puma's supernova effects, according to the label, towards Bayard's Planet.