The term “star” was once used in Society heraldry as a synonym for “mullet”, particularly in the phrase “stars au naturel”:  mullets of various sizes and shapes, so as to represent actual heavenly bodies.  Such natural depictions of the night sky, along with constellations (e.g., Orion), are no longer permitted in Society heraldry; and the ambiguous term “star” has been discarded in favor of “mullet“, “estoile“, or “comet“, as the case may be.

Petr Aleksivich of Novgorod bears:  Azure semy of stars, a hawk volant contourny wings addorsed argent.