Leo, the lion constellation, is not in the southern hemisphere. It's a northern hemisphere constellation.

Here's why:

* Celestial Coordinates: Leo is located at a declination of roughly +15° to +30°. Declination is like latitude on Earth, with positive values representing the northern hemisphere.

* Visibility: From the southern hemisphere, Leo appears low on the horizon, often partially or fully obscured by the horizon. It's most easily seen in the northern hemisphere's spring and summer months.

To see Leo, you'll need to be in the northern hemisphere.