In the Dungeons & Dragons fantasy role-playing game, celestials are outsiders of wholly good alignment and hail from the Upper Planes.
There are four known types of celestial. Archons, Eladrins, and Guardinals are led by celestial paragons, unique beings as powerful as demon princes and archdevils.
Angels
Angels can be of any good alignment, and can live any of the Upper Planes instead of being limited to just one.
Archons
Archons are lawful good and found on the plane of Mount Celestia.
Eladrin
Eladrins are chaotic good and found on the plane of Arborea.
Guardinals
Guardinals are neutral good and found on the plane of Elysium.