Lunar day around the Sun at the same time, the Moon must travel further to return to the same phase. On average, this synodic period lasts 29 days, 12 hours, 44 minutes, and 3 seconds. This is the mean figure since the speed of the Earth–Moon system around the Sun varies slightly during a year due to the eccentricity of its elliptical orbit, variances in orbital velocity, and a number of other periodic and evolving variations about its observed, relative, mean values, which are influenced by the gravitational perturbations of the Sun and other bodies in the Solar System. As a result,
Harry Earnshaw seconds. In 1938 Earnshaw won the British Best All-Rounder with the record average speed of 22.627 mph. This was reward for his victory in the Westerley 100-mile competition in a record time of 4 hours 20 minutes 48 seconds, plus two seasons best performances of 50-miles in 2 hours 4 minutes 21 seconds and 249 miles in 12 hours. Harry Earnshaw's achievements were celebrated in 1938 when Cycling Weekly awarded him his own page in the Golden Book of Cycling. In his senior years he became an accomplished after dinner speaker, but later came the sad news of his multiple