A View of Greyspace by Noah Bonebreak

Connects To/From: Realmspace, Clusterspace, Moragspace, Shadowspace, to
Krynnspace, Vodoni Empire
Planets and Ports: Oerth , Kule , Raenei , Liga (the sun) , The Moth, Edill, Gnibile, Conatha, Ginsel, Borka, Greela, The Spectre
Description and Notes:
Greyspace is a geocentric sphere, with Oerth at the center of the system. Oerth and its ‘moons,’ Kule and Raeni, are inside a massive asteroid field, the Grinder. The other planets lie outside the Grinder, which separates the sphere into ‘inner’ and ‘outer’ systems. Greyspace is part of ‘The Triad’ Flow configuration.

Oerth: Terrestrial planet and home to the City of Greyhawk. (This planetary system is geocentric, not heliocentric.)
Kule: Tidally-locked terrestrial body. Covered with the ruins of a humanoid civilization, but lacking any air whatsoever. A magical cataclysm is suspected to have caused the depopulation. Also known as Celene.
Raenei: Terrestrial planet, covered with earthlike features, including animals and monsters, but no sentient life. Also known as Luna.
Liga, the Sun: Star. Has many small lakes of elemental water to keep it from burning too hot. Larger than Oerth, but orbits it anyway.
The Grinder: Asteroid belt.
Edill: Gas giant, populated primarily by dragons.
Gnibile: Dark-red gas giant, with blobs of lava and shards of ice in the interior. Contains a gate to the Negative Material Plane. Populated primarily by undead.
Conatha: Elliptical water world with two solid cores that orbit around each other. Populated by many piscine creatures, including merfolk and sahuagin.
Ginsel: Crescent-shaped world that resembles an apple with a giant bite taken out of it. Has an atmosphere on the inside of the crescent.
Borka: Spherical asteroid cluster with a common atmosphere. Formerly a planet inhabited by orcs, goblins and other humanoids, it was devastated by the magic of the elves.
Greela: Another spherical asteroid cluster with a common atmosphere, although many of the asteroids bear huge forests. Home to the elves.
The Spectre: A flat, circular disc of rock that appears to vanish and re-appear as it is seen edgewise, then rotates to show its full face. Also called The Wink. Has an atmosphere and water, but no life.