Which (3) ways is Orion pronounced as relative to (3) meanings, Orion Township, Lake Orion (Lake), and Lake Orion (town)?
As far as those examples that exist in Michigan, USA, the pronunciation for all three is the same: OH-ree-un, with the emphasis on the first syllable. The constellation Orion, on the other hand, is pronounced oh-RY-un, with the emphasis on the second syllable.
For reference, I was born in Michigan, and lived there until my late 40's. I lived within 30 miles of Orion Twp and Lake Orion (both the town & the lake, obviously ;-)