Royal Greenwich Observatory
The zero meridian, from which longitude is measured, passes through the original location at Greenwich; the Royal Observatory buildings there are now part of the Royal Museums Greenwich and house a museum and science center and, since 2018, the Annie Maunder Astrographic Telescope. From the appointment of John Flamsteed as its first director until 1972, the director of the observatory held the title of astronomer royal. Among the noted directors were Flamsteed, Edmond Halley, James Bradley, Nevil Maskelyne, G. B. Airy, and E. Margaret Burbidge, who was the first director not to be astronomer royal.
The Columbia Electronic Encyclopedia, 6th ed. Copyright 2012, Columbia University Press. All rights reserved.
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