Cybertron

Cybertron, thought to have once been the homeworld of a robotic race, is the equivalent of Mercury in the Antisolar system. The closest planet in the system to Dosolarioni, it is scaldingly hot. This is only magnified by the fact that its entire surface consists of metallic surfaces.

The reason the planet is in the state that it is in today is because of a cataclysmic solar event, a supermassive electromagnetic pulse and solar flare. Before the event, a robotic society thrived, mining for materials and using solar panels to harvest the Sun's energy. But after the event, all of the robots were fried and deactivated, and some parts of the planet even became molten.

Cybertron is also tidally locked.