Khirad was an Elder Evil from the Far Realm who had taken possession of one of the stars of Realmspace. Unlike normal stars, Khirad didn't have a fixed place in the sky but instead danced and wavered across the Realmspace.
Khirad was a blue star.
Khirad, and the other Far Realm-infested stars of Realmspace, were somehow related to the
Wherever an apocalypse of some sort happened in Realmspace, Khirad was the most brilliant star in the sky.
Sometimes, Khirad radiance revealed secrets and gruesome insights. 
Khirad was one of the stars the
warlock Japheth Donard sought out in 1396 DR, after having lose his pact with the archfey Neifion.
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Bruce R. Cordell (2009). . ( City of Torment Wizards of the Coast), p. 184. ISBN 978-07869-5184-0. ↑
Bruce R. Cordell (August 2008). “Wish Upon a Star”. In Chris Seaman and John Stanko ed. ( Dragon #366 Wizards of the Coast), p. 18.