Javvin is the only moon of Shraak I, and is small for a moon, being only 120 kilometers in diameter. This is inadequate for permament colonisation, and so scientists are studing 'gravity wheel' type scructures to mount on the moon, and colonise it. It is hoped that there will be a permament base in under 24 waterbe years.

The surface is relatively smooth and featurless, save for a large impact crater many kilometers in diameter. Near the south pole is a very bright area. It is as yet unknown what it is.