Here's why:

* Orion's location: Orion is a constellation in the Northern Hemisphere. It's visible in the sky from the Northern Hemisphere during the fall and winter months.

* Earth's rotation: The Earth rotates on its axis, causing the stars to appear to move across the sky. As you look south, you are looking towards the celestial equator, which is the imaginary line that circles the Earth halfway between the North and South Poles.

* Orion's position: Orion's celestial location is such that it never crosses the celestial equator. Therefore, it will never be directly overhead when looking south.

To see Orion in the Southern Hemisphere:

Orion can be seen in the Northern sky in the Southern Hemisphere, particularly during the summer months (when it's winter in the Northern Hemisphere).