A10 is the tenth planet of the primary of the Nivenia System and part of the A10-A10.1 double planet and a colonial province of the Nivenian Empire. Like A12-A12.1, the A10-A10.1 double planet system has a tether connecting the two planets since they are tidally locked, and a station in the central point of the tether used for spaceflight.

A10 is a lot like A11 in its composition, and is also used for fixed nitrogen acquisition, but has nowhere near the right gravity for Nivenians, and consequentially has circular paraboloidal pseudo-O'Neill cylinders on its surface to provide extra spin gravity to its inhabitants. These must be mounted inside air-tight compartments as the atmosphere of the planet would cause friction otherwise.

Limited vegetation exists, mostly limited to fungi and bacteria.

General Information
Nivenian History after Dekemurios 32, 20 NE
Nivenia Space Core Systems (within 3.2 light-years)
Nivenia Space Rouge Planets