Astronomy in a nutshell, the chief facts and principles explained in popular language for the general reader and for schools (1912)
Serviss, Garrett Putman, 1851-1929, Rouben Mamoulian Collection (Library of Congress) DLC · New York, London, G.P. Putnam's sons · leaf 204
er. Consequently we cannotsuppose it to be inhabited, at least by anyforms of life familiar to us on the earth.But when the moon is viewed with a telescopelarge relatively flat areas are seen, whichsome think may have been the beds of seasin ancient times. They are still called maria,or seas, and… … Spiral Nebula in Cepheus (H IV 76) Photographed at the Lick Observatory by J. E. Keeler, with the Crossley reflector. Exposure four hours. Observe that the central portion is only of stellar magnitude.
Astronomy
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