Each sargasso was a globe about 100,000 miles (160,000 kilometers) in diameter. They orbited the sun at a distance of 40 million miles (64 million kilometers) and were all equidistant to each other. From that orbit, they could pass as close as two spelljamming hours away from Anadia, which orbited at a distance of 50 million miles (80 million kilometers) from the sun.
A spelljammer that entered a sargasso powered down in bursts until the spelljamming helm and any other magic items onboard stopped working within a few seconds, giving very little time for the navigator or the crew to react. For the helmsman, the sickening feeling of an approaching sargasso was similar to that of falling off a cliff. If the helmsman were unsuccessful in maneuvering the ship away, it slowly drifted into the sargasso carried by its own inertia, incapable of escaping until it reached the other side, which could take months.
- Dale "slade" Henson (April 1991). Realmspace. Edited by Gary L. Thomas, Karen S. Boomgarden. (TSR, Inc), p. 6. ISBN 1-56076-052-4.
- Dale "slade" Henson (April 1991). Realmspace. Edited by Gary L. Thomas, Karen S. Boomgarden. (TSR, Inc), p. 7. ISBN 1-56076-052-4.
- Ed Greenwood (1990). Lost Ships. Edited by Jennell Jaquays, Anne Brown. (TSR, Inc.), pp. 37–38. ISBN 0-88038-831-5.
Comets: K'Thoutek • King-Killer Star
Nebulae: Galleon Nebula • Color Spray Nebula
Far Realm-infested stars: Acamar • Caiphon • Delban • Gibbeth • Hadar • Khirad • Nihal • Zhudun
Other astronomical bodies: Caer Windlauer • Skull of the Void • Sargassos