Matches in DBpedia 2014 for { ?s ?p 3C 279 (also known as 4C–05.55, NRAO 413, and PKS 1253–05) is an optically violent variable quasar (OVV), which is known in the astronomical community for its variations in the visible, radio, and x-ray bands. The quasar was observed to have undergone a period of extreme activity from 1987 until 1991.. }
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- 3C_279 comment "3C 279 (also known as 4C–05.55, NRAO 413, and PKS 1253–05) is an optically violent variable quasar (OVV), which is known in the astronomical community for its variations in the visible, radio, and x-ray bands. The quasar was observed to have undergone a period of extreme activity from 1987 until 1991.".