Lockyer, Norman, Sir, 1836-1920 · London : Macmillan and Co. · leaf 103
rough the centre of the illuminated side of the Earth. Itmust therefore be noon at that place, as noon is half-wavbetween sunrise and sunset. All the places represented onthe western border have the Sun rising upon them ; all theplaces on the eastern border have the Sun setting. As, 76 • ASTRONOMY.… … Fi£^. 12.—The Earth, as sien from the Sun at the Autumnal Equinox(noon at London). 180. In fact, as the Earth, whose circumference isdivided into 360° (Art. 159), turns round once in twenty-four hours, the Sun appears to travel 15° in one hour fromeast to west. One degree of longitude,…
Astronomy · Solar system
Internet Archive · OCAD University Library · Public Domain Mark 1.0. Free to use for anything.
