Oa

Oa is a fictional planet that lies at the center of the DC Comics universe. Since its inception, Oa has been the planetary citadel of the Guardians of the Universe and headquarters of the Green Lantern Corps. It first appeared in Green Lantern (vol. 2) #1, when the Guardians summoned Hal Jordan's "energy duplicate" so they could hear of his origin.
==Gallery==
File:Oa (DC Comics).jpg
File:Oa 002.jpg
==Appearances in Idea Wiki==
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==External links==
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Category:Planets
Category:DC Comics
Category:Green Lantern