Eristhicanus

Eristhicanus /eristhi cawn ʌs/ or Belaphor I is the closest major moon of Belaphor. Eristhicanus is approximately the mass of Mars, although its proximity to Belaphor has caused it to be extremely oblate to have the radius of about the Earth. The moon is praised by the global religion of The Holy Moon of Leiar and is considered a sacred place that no living beings are allowed to touch. Despite this, the WSAA, previously unbeknownst to the belief, landed a rover on its surface.

Formation
Eristhicanus was formed in the far reaches of the protoplanetary disk of Amoerra. It most likely contained a thin atmosphere, much of which was water vapor, that was frozen over. Intense tidal heating of the planet caused the atmosphere to convert to liquid state, which then evaporated into space. However, pockets of water are found below the crust of the moon.

Geology
The moon was previously geologically active, judging by the tall dormant volcanoes and the rifts and valleys. However, it ceased any such activity for an unknown reason. The moon is also unnaturally heavily cratered in its poles, although the region near its equator lacks any substantial craters.