A hydrogen-rich emission nebula formed about 4 million years ago.

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It was discovered by Lewis Swift in 1865.

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It is approximately 5,200 light years away from Earth.

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It is best observed in winter in an area where the southern part of the sky is exposed.

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You can observe it with large binoculars with a hydrogen filter installed.

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The Rosette Nebula spans approximately 130 light-years.

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At the center of the nebula is the cluster NGC 2244, which was discovered earlier than the nebula itself.

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