Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. This emission nebula is famous partly because it resembles Earth's continent of North America. The nebulae can be seen with binoculars from a dark location. Look for a small nebular patch north-east of bright star Deneb in the constellation of Cygnus . It is still unknown which star or stars ionize the red-glowing hydrogen gas.
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