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 100
THIRD THEORY. Again, it has been supposed that some large planetmay be revolving around the luminary, and by the in-terposition of its opaque body, may cut off the rays oflight. The white globe in the cut represents a glittering star over whosesurface a dark planet revolves periodically,… … 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…
Astronomy
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