Having arrived in London on 2 February 1675, and staying with Jonas Moore at the Tower of London, Flamsteed had the opportunity to be taken by Titus to meet the King. He was subsequently admitted as an official Assistant to the Royal Commission and supplied observations in order to test St Pierre's proposal and to offer his own comments. The commission's conclusions were that, although St Pierre's proposal was not worth further consideration, the King should consider establishing an observatory and appointing an observer in order to better map the stars and the motions of the Moon in order to underpin the successful development of the lunar-distance method of finding longitude.