Here are the names of the 8 main stars in Orion, including the ones that form the recognizable shape:

1. Betelgeuse (α Orionis): A red supergiant, marking Orion's right shoulder.

2. Rigel (β Orionis): A blue supergiant, marking Orion's left foot.

3. Bellatrix (γ Orionis): A blue giant, marking Orion's left shoulder.

4. Mintaka (δ Orionis): A blue giant, marking Orion's belt, the leftmost star.

5. Alnilam (ε Orionis): A blue supergiant, marking Orion's belt, the middle star.

6. Alnitak (ζ Orionis): A multiple star system, marking Orion's belt, the rightmost star.

7. Saiph (κ Orionis): A blue supergiant, marking Orion's right knee.

8. Meissa (λ Orionis): A blue giant, marking Orion's head.

While these eight stars are the most prominent and form the main shape of Orion, there are many other stars within the constellation.