Esto

Eato is the 4th and final moon that is orbiting Vulus and is the planet's smallest major moon, this moon is one of 3 major moons that is not tidally locked due to it is at a far enough distance from the planet.
== Physical characteristics ==
This moon like with the 3 other airless moons is a basic moon, though this one appears the most yellowish of the 3 airless moons, this moon is also quite unique because it has a lot of volcano's however most of them went extinct, there are 2 known active ones that erupt every 5 days that reform the surface of this moon causing it to be one of the more geologically active moons in the Vulsusian moon system.
== Estoian Geography ==
This moon like Aro is considered a active moon, though this one has less active volcano's, this one has 2 notable volcano's that stand tall and active as they erupt every 5 days which means it erupts roughly 40x a complete orbit of the moon, it's cause of activity is caused from the affects of Aro passing by the moon in-terms of resonance causing geological effects on both moons. the cause of Esto's 2 main volcano's erupting have caused Canyons to form and other lava flowed area's to form on it's surface while also covering up Craters on the moons surface.
== Estoian landforms ==
* Mountains
* Volcano's
* Hills
* Canyons
* Plains
* Valley's
* Cliffs
== Trivia ==
* Most distant moon of the planet that is a spherical object.
Category:Moon
Category:Holias system
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