A black moon also refers to the new moon phase itself when the moon is positioned between Earth and the sun, making it nearly invisible from our view. The black moon is a new moon in Capricorn, an Earth sign associated with ambition, professional goals, societal structures and authority, according to Thomas.

A rare black moon will appear in the sky on December 30, making it a perfect night to go stargazing. Here's what you need to know.

The Winter Circle, a large circular pattern made of some of the brightest stars in the Northern Hemisphere's winter sky, will also be out on the night of the black moon. The rare moon phase is also near the peak of the Quadrantid meteor shower on Jan. 2-3, meaning there might be some meteors visible.