Ah, the familiar chill in the air as autumn arrives, a reminder of turning leaves, the coming winter and—of course!—the return of the constellation Orion to the night sky, along with the constellation’s myriad astronomical wonders.
The best known of the latter is the iconic Orion nebula, a gas cloud so huge and bright that it’s visible to the naked eye despite being about 1,300 light-years from Earth.
Publisher: Scientific American
Author: Phil Plait
Twitter: @sciam
Reference: (Read more) Visit Source
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