Celestarian

Celestarian (not to be confused with celestian) is a non-binary xenogender in the celestial gender system. It is a combination of juparian, lunettian, and mercurian. A celestarian person may feel all of three at once or they may be fluid between them, or they may feel different amounts of each at different times.

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The term and flag were created by the Tumblr user Juparian on December 31, 2017.