👉 Vespertilionid is a type of star that is classified as an asteroid. It is also known as a comet, which is a large object that orbits the sun in its own orbit around the sun. Vespertilionids are typically smaller than comets and larger than asteroids. The term "vespertilionid" comes from the Latin word "vespertus," meaning "sun," referring to the position of the star when it appears to be at the center of a cres