Postphonic Star Exploration was a 5" EP released by Man or Astro-man? in 1995 (SFTRI250). It was one of a series of several 5" records (smaller than the standard 7") put out by Long Gone John's Sympathy for the Record Industry label in the 1990s (other notables being El Vez and Rocket from the Crypt). This was also one of the few appearances by Captain Zeno on an Astroman recording. The picture sleeve was made from heavy cardstock printed with high gloss ink and glued into a pocket shape. It was roughly the size of a compact disc. The back cover featured an incredible photo of Starcrunch playing while standing on top of his amp. It also featured the Moore Mill Road address in Auburn, which probably dates it to the first half of 1995.
The record itself was available on opaque black vinyl and clear green vinyl. Here is a scan of both versions:
