Question

Which celestial body is called as star but not a star and why

Answer 1

Venus is a planet. It is called as morning star or evening star due to its appearance as a very bright dot just before sunrise  for about eight weeks in the eastern sky and for eight weeks in the western region of the sky immediately after sunset.

Answer 2

The planet Venus is often called as morning or evening star as it resembles a bright sparkling dot in the sky though it does not belong to category of stars