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Date: 2010-05-10 20:42:41Star formation Astrophysics Open clusters Trapezium Cluster Nebula Orion complex NGC objects Protostar Orion Nebula Astronomy Space Orion constellation | Orion Nebula (M42) Easily seen with the naked eye on a dark night, the Orion Nebula takes on a new dimension when seen in infrared light.Add to Reading ListSource URL: www.spitzer.caltech.eduDownload Document from Source WebsiteFile Size: 26,35 KBShare Document on Facebook |