How do astrologists measure the distance to the moon?
The others having taken care of astrologist and laser, the easiest way before a laser reflector was on the moon is to have two cameras on telescopes take pictures from locations a known distance apart at the same time and compare the stars in the background to determine the parallax (different angles) which can be used to make a triangle with a known base and the sides and altitude be calculated. Before modern communications and time pieces, the eclipse of a moon of Jupiter might be used for synchronization and the angle measured directly at that moment between a given star and edge of moon. It can also be calculated from orbital speed of moon if mass of earth moon combination can be determined from other means.
