Here's why:
* Constellations are patterns: Constellations are groupings of stars that we on Earth perceive as forming shapes or figures. These patterns are based on lines of sight, but the stars themselves aren't physically connected or in any way part of a "group" in space.
* No official count: There's no official list of stars that "belong" to a constellation. Astronomers focus on individual stars for study and cataloging.
However, some constellations are brighter than others and contain more prominent stars visible to the naked eye.
* Apus is a faint constellation: It's located in the southern hemisphere and doesn't have any very bright stars.
* Star charts: You can find Apus on star charts, and these charts often include the brighter stars in the region, allowing you to trace the shape of the constellation.
So, while there's no definitive number of stars "in" Apus, you can find a handful of brighter stars that help you identify the constellation.
