I designed this small hex map years ago for Arcanum of the Stars — my altered vision of the Dragonstar universe merged with many aspects of Skyrealms of Jorune, Spelljammer, and Alternity’s Star*Drive.
The title, Aegis Region, refers to the central star system that sits near the edge of the two domains. The system is based on the Star*Drive system of the same name. Other important systems include the following: Amaunator (Forgotten Realms), Kurg’s Star, Sirion (Krynn), Tassa, and The Zefferan Colonies.
Greyhawk’s system is in there somewhere too, but i forget what I named it. I’ll likely update it in Hexographer at some point.