Triad

The namesake and primary setting of the Triad Verse.

Epona
Main article: Epona

Epona is a small planet, around three quarters the size of Earth, covered in land and ocean at a ratio of 40|60. It has varying climates - on the surface its hottest places average 40-45 Celsius while its coldest point dips below -100 Celsius. The planet is surrounded by a pair of faint rings of magic, solidified into a constant surface. One is as wide as Canterlot Mountain is tall, while the second is no wider than a street.

Epona is the primary setting for the Triad Verse.

Moon
Alongside the Sun, the Moon orbits Epona. It circles the planet in a steady day and night cycle, with no difference between its speed and that of the Sun. Its surface is a patchy waste of grey desert and grey rocks. This is the same across almost the entire surface, save for a particular region where plants can be seen growing in the darkness of the void. Aside from interesting geological features, the surface of the Moon has nothing noteworthy.

Hueco Mundo
Main article: Hueco Mundo

The underside, on the other hand...

Hueco Mundo is the name given to the world existing inside the Moon, meaning "Hollow World". The surface of Hueco Mundo is actually the ceiling of the underside of the Moon, meaning when one looks up, they are actually looking into the center of the planet. Like the outer shell, Hueco Mundo largely features vast, grey deserts, though less rocky areas. No life grows here, though there are "trees" formed from quartz build ups.

The core of the Moon is called Gigarsdyl, and is where the God Asterion resides.

Sun
Main article: Athens

The Sun shares many similarities with the Moon, more so than most Epona-based scientists would have you believe. It orbits Epona at precisely the same distance as the Moon, is exactly the same size (give or take due to the energy-based nature of its surface) and houses a world of its own beneath its outer shell. An island, Athens, floats in the very center of the Sun, serving as the celestial body's center of gravity.