A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope (1912)
Murphy, Edgar Gardner, 1869-1913 · New York, London, G.P. Putnam's sons · leaf 104
ace an obvious flattening at the poles. Jupiter goes round theSun once in 11.86 years (the year of Jupiter) at a mean distance of 483,300,000 miles; the velocity of the orbitalmotion being 8 miles per second. For every 100 units of sunlight that fall on the planets surface, it is estimated that62… … ^be planets 89 That such a phenomenon as life, persistent here through such varied and difficultconditions, through so long a period and under so many forms, is a unique and isolatedfact becomes increasingly improbable. The beginner may be warned, however, that suchsuggestions are speculative, and…
Astronomy
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