The wonders of the heavens, being a popular view of astronomy, including a full illustration of the mechanism of the heavens; embracing the sun, moon, and stars, with descriptions of the planets, comets, fixed stars, double stars, the constellations, the galaxy, or milky-way, the zodiacal light, aurora borealis, or norhtern lights, meteors, clouds, falling stars, aërolites, &c (1837)
Bradford, Duncan. [from old catalog] · Boston, American stationers company · leaf 335
his purpose, itwill be proper to observe, that, by the densities ofbodies is to be understood their degree of com-pactness, or the greater or less quantity of matterthat is contained in them when compared, bulkfor bulk, with each other. According to thisdefinition, the quantities of matter in… … million,) so is the sine of A E P sixteen minutes and one and a halfseconds to P A. the double of which, or A B, is the diameter of thesun in miles. and as their magnitudes when their densities areequal; therefore the quantities of matter in anytwo bodies are jointly as the products of…
Astronomy
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