Science Station Delta-05, also known as Outpost Delta-05 or Science Station D-5, was a distant Federation science station and outpost in sector 3-0. This outpost, located on a planet, was located on the edge of the Romulan Neutral Zone. It was one of nine outposts located in its sector.
In 2259, the outpost's location was seen on a stellar cartography chart seen on the USS Enterprise's ready room viewscreen. The location's symbol had a blue color, indicating that it was affiliated with the Federation. (SNW: "A Quality of Mercy")
In 2364, Science Station Delta-05 was the first stop of the USS Enterprise-D's tour of the sector. The crew of the Enterprise-D determined that the outpost had been obliterated by an unknown assailant. (TNG: "The Neutral Zone")
In 2365, the assailant was later identified as the Borg. (TNG: "Q Who")
By 2401, this station had been rebuilt. (PIC: "Disengage")
In the episode "Disengage", the location of this outpost was seen on the bridge of the SS Eleos XII on what appears to be an updated chart from Star Trek: Star Charts. Dave Blass published pictures of the set on his website.