Orion constellation has 8 main stars, though it can be argued that there are more depending on how you define "main".

Here are the 8 most prominent stars that form the recognizable shape of Orion:

* Betelgeuse: A red supergiant, the brightest star in Orion.

* Rigel: A blue supergiant, the second brightest star in Orion.

* Bellatrix: A blue giant star.

* Mintaka: A blue supergiant star.

* Alnilam: A blue supergiant star.

* Alnitak: A blue supergiant star.

* Saiph: A blue-white supergiant star.

* Meissa: A blue giant star.

These stars make up the easily recognizable outline of Orion, including the "belt" of three stars in a row and the "sword" hanging below it.

However, Orion contains many more stars, including fainter ones, which are often overlooked when only focusing on the main 8.