The Little Gem Nebula or NGC 6818 is a planetary nebula located in the constellation of Sagittarius. It has magnitude 10 and oval diameter of 15 to 22...
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NGC 6782 is a barred spiral galaxy located in the southern constellation of Pavo, at a distance of approximately 173 megalight-years from the Milky Way...
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NGC 6509 is a spiral galaxy in the equatorial constellation of Ophiuchus. It was discovered on July 20, 1879 by the French astronomer Édouard Stephan...
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tumor tracking using robotic couch". Medical Physics. 39 (11). Wiley: 6957–6967. Bibcode:2012MedPh..39.6957B. doi:10.1118/1.4758064. ISSN 0094-2405. PMC 3494731...
397 KB (38,856 words) - 16:19, 3 August 2024