The Hearthian's real name isn't known to us. The Hearthian is from the Outer Wilds solar system. This system contains the planets Ash Twin and Ember Twin, which orbit each other binarily, as over time Ash Twin floods Ember Twin with sand. Next is Timber Hearth and its moon, the Attlerock. Timber Hearth is the hearthian's home planet. Then there's Brittle Hollow and its moon, Hollow's Lantern. Hollow's Lantern shoots out meteors that frequently destroy Brittle Hollow's crust. 