Here's a breakdown:

* Constellation: A group of stars that form a recognizable pattern in the night sky. Orion is famous for its distinct shape, often described as a hunter with a belt of three stars.

* Star: A giant ball of hot gas that emits light and heat through nuclear fusion. Orion contains many individual stars, including Betelgeuse and Rigel.

* Galaxy: A massive collection of stars, gas, dust, and dark matter, held together by gravity. The Milky Way is our galaxy, and Orion is a part of it.

So, Orion is a constellation that we see in the night sky, made up of many stars that are all part of our Milky Way galaxy.