New moon western horizon shortly after sunset and before moonset. A lunation or synodic month is the average time from one new moon to the next. In the J2000.0 epoch, the average length of a lunation is 29.530588 days (or 29 days, 12 hours, 44 minutes, and 2.8 seconds). However, the length of any one synodic month can vary from 29.26 to 29.80 days due to the perturbing effects of the Sun's gravity on the Moon's eccentric orbit. In a lunar calendar, each month corresponds to a lunation. Each lunar cycle can be assigned a unique lunation number to identify it. The
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