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XIR47625 Painting by Nicholas Roerich
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FIA5325962 Painting by Nicholas Roerich
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AMO3980223
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PIX4622236 Nebula IC 1318 in the Swan - IC 1318 Butterfly nebula in Cygnus - IC 1318 is a very large emission nebula that surrounds the supergiant star Gamma Cygni (Sadr), visible towards the middle of the image. LDN 889 is a vast region of dark nebulae that separates the nebula on the left from Sadr. On the extreme right, another dark nebula, B343. Image obtained by the Oschin telescope of Mount Palomar through several filters and composed. Supergiant star Gamma Cygni lies at the center of the Northern Cross, famous asterism in the constellation Cygnus the Swan. Known by the proper name Sadr, the bright star also lies at the center of this gorgeous skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans over 4 degrees (eight Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Left of Gamma Cyg and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318's popular name is understandably the Butterfly Nebula. Above and left of Gamma Cyg, are the young, still tightly grouped stars of NGC 6910. Some distance estimates for Gamma Cyg place it at around 750 light - years while estimates for IC 1318 and NGC 6910 range from 2,000 to 5,000 light - years. The color image is based on data coming from a number of different photographic plates taken in 1991 and 1992 by the Palomar Observatory's 48 - inch (1.2 - meter) Samuel Oschin Telescope as a part of the second National Geographic Palomar Observatory Sky Survey (POSS II)
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