Orion is probably the easiest constellation to visualize. It's amazing how many people don't know the very basics of the constellations. I like to point to the stars and make up constellations to f*** with people though, so maybe I'm part of the problem.
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"It's a magical world, Hobbes ol' buddy...let's go exploring!" - Calvin
http://img.imgcake.com/calvinfinalpngpy.png