Show FROM THE MOON i appearance of wy Jl arti as viewed from alio bunar M orld it is to a lunar observer the disk of earth appears to be equal to about sixteen areas of the solar disk djs the new york times the solar disk as been from earth is on an average equal to the lunar disk seen from alie same point for in a solar eclipse the disk of the moon covers the aun as in an annular eclipses therefore the apparent size of the bodies must aver age about equal in size to a terrestrial observer again the solar disk will the lunar observer just equal to what it seams to be when seen from earth because the distance from the asunto the moon equal to the distance from the sun to earth inether more the diameter of the earth is equal to about four lunar diameters and of course the area of their disks vary as the square of their radii and this makee the terrestrial disk about equal to sixteen lunar disks and of course if the lunar disk is equal to the olar disk at a given distance then the erra diek will seem to ho about times as great atthe camei distance this enormous disk of earth must be blue in color to tha lunar observer be aasc barths atmosphere is blue ana 11 things seen through it seem blue even interstellar space seems blue and the mated carls bf the moon cannot be distinguished from the space that abuts it IS right direct and reflected is not affected appreciably by its passa through our atmosphere j therefore aars moonlight and distant illuminations are not noticeably blue from that |