Altar is one of the constellations of the Vaxian Zodiac representing the beginning of the end of winter. The month that takes his name is the equivalent of January 1 to February 22.

Altar has no physical form. He is not even a real constellation, but rather one of the brightest stars that shines in the sky, aside from the sun itself. In order to manifest himself in the mortal world, it is said that he must inhabit the body of a willing mortal vessel, and so he can take on any form that fits those requirements.