Delban was an Elder Evil from the Far Realm who had taken possession of one of the stars of Realmspace. Unlike normal stars, Delban didn't have a fixed place in the sky but instead danced and wavered across the Realmspace.
Delban was an ice white star.
Delban was usually visible only in winters, but sometimes it shone without reason in any other seasons, surprising scholars who studied stars. Of all the Far Realm-infested stars, Delban was the most cruel and bitter.