Real world article
(written from a Production point of view)
(written from a Production point of view)
According to the script for Star Trek IV: The Voyage Home, Delta V was the inhabited fifth planet in its star system.
During the Whale Probe crisis of 2286, a Starfleet Command Table Operator confirmed that the planet had sent interactive visuals of the probe to Starfleet Command. The visuals hinted to a connection between mag flux ratios and the probe.