The young astronomer; or, The facts developed by modern astronomy, collected for the use of schools and the general reader (1847)
Abbott, John S. C. (John Stevens Cabot), 1805-1877 · New York, J.C. Riker [etc.] · leaf 101
Describe the third theory. yb THE YOUNG ASTRONOMER. FOURTH THEORY. Il is also suggested, as possible, that there may beplanets of majestic size, vastly surpassing our sun inmagnitude, around which a sun of lesser magnituderevolves, and that in its revolution it is periodicallyhidden behind the… … FIFTH THEORY. The phenomenon may be caused by a vast sun, moving with inconceivable velocity in an immenselyelliptical orbit, the longer side of which is nearly in a Let E be the Earth. The star revolves in the orbit A B C D,disappearing in the distance, as it passes towards the extreme of Describe…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.