* Constellations are just patterns: Constellations are imaginary shapes we draw connecting stars in the sky. The stars within a constellation aren't actually close to each other in space.
* Different perspectives: Different cultures and time periods have defined constellations differently.
* Brightness: We only see the brightest stars with our naked eye. A constellation might have hundreds or even thousands of fainter stars that we can't see without telescopes.
Hercules does have some prominent stars:
* The "Keystone": This distinctive asterism (a smaller pattern within a constellation) is formed by four stars that are fairly bright and easy to spot.
* Alpha Herculis (Rasalgethi): The brightest star in Hercules.
So, the bottom line is: There are many stars in Hercules, but we don't know the exact number.
