Page:Gods Glory in the Heavens.djvu/375

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SYNOPTICAL TABLES.
339
Rate per minute at which equator rotates, in miles, 17
Rate per second of her velocity in orbit, in miles, 20
Days in falling to the Sun, 64.6
THE MOON.
Volume (Earth's = 1), 1-49th
Mass (Earth's = 1), . 1-80th
Density (Earth's = 1), 0.615
Density— — — (water = 1), 3.37
Diameter (Earth's = 1), 0.264
Diameter— — — in miles, 2164.6
Diameter— — — apparent, mean, 31′ 7″
Diameter apparent— — — minimum, 29′ 21″.9
Diameter— — — maximum. 33' 3″.1
Gravity at surface (Earth's = 1), 1-6th
In one second of time bodies fall, in feet. 2-6
Centre of figure nearer the earth than centre of gravity, in miles, 33
Elevation of highest mountain in the Moon (Doerfel), in feet, 24,945
Elevation of highest mountain— — — (Moon's diam. = 1), 1-454th
Elevation of highest mountain— — — on the Earth, in feet, 28,180
Elevation of highest mountain— — —(Earth's diam. = 1) 1-1480th
Greatest depth of craters below the general surface in feet, 17,000
Greatest diameter of craters, or cavities with or without raised walls, in miles, 55
Greatest diameter„ of walled plains, in miles, 150
Greatest height of central cone, in feet. 5000
Longest bright ray (Tycho), 1800
Rills, greatest length in miles, 150
Rills— — — greatest breadth in feet, 6000
Rills— — — number, 90
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