 The search was begun by a laborious method on 29 July.Adams continued to work on the problem, providing the British team with six solutions in 1845 and 1846  which sent Challis searching the wrong part of the sky.Only after the discovery of Neptune had been announced in Paris and Berlin did it become apparent that Neptune had been observed on August 8 and August 12 but because Challis lacked an up-to-date star-map, it was not recognized as a planet.