NGC 1277 (Dutch Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1277" in Dutch language version.

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(en) Texas Astronomers Measure Most Massive, Most Unusual Black Hole Using Hobby-Eberly Telescope, McDonald Observatory, University of Texas at Austin, 28 november 2012
(en) Michael A. Beasley, Ignacio Trujillo, Ryan Leaman en Mireia Montes, Identification of the primordial globular cluster system of a massive relic galaxy Nature. Geraadpleegd op 13 maart 2018