Greenwich, London Photo Tour
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The Royal Observatory
The Royal Observatory was founded on 22 June 1675 by King Charles II, and was built specifically to do work which would help to solve the problem of finding longitude - one's exact position east and west - while at sea and out of sight of land. Charles II appointed John Flamsteed as his first Astronomer Royal in March 1675. The 28-year old clergyman was instructed 'to apply himself with the most exact care and diligence to the rectifying the tables of the motions of the heavens, and the places of the fixed stars, so as to find out the so much-desired longitude of places for the perfecting the art of navigation.' Longitude was then impossible to calculate at sea and Flamsteed began his observations to solve the longitude problem once and for all.