The Moon: Her Motions Aspect, Scenery, and Physical Condition

action actual advance amount angle anomalistic month aphelion apogee appears astronomers body Cape Town celestial circle circumstance consider considerations corresponding course craters crust deduced degree descending node diameter diminished direction displacement diurnal motion earth earth's attraction eccentricity ecliptic effects equal equator exceeds fact full moon globe gravity greater heat heavens Hipparchus horizon illumination inclination increase John Herschel law of Kepler less libration light lunar atmosphere lunar orbit lunarian M₁ M₂ Mädler maximum mean centre mean distance mean place miles moon's disc moon's distance moon's mass moon's mean moon's motion moon's orbit moon's surface nearly Newton normal force observations obvious parallax passing path perigee perturbing force planets Plate position present proportion radial force regarded regions regredes represented respect result revolution rising node rotation round seen sidereal sidereal month solar square stars supposed tangential force telescope terrestrial theory tion traverses velocity volcanic whole