Brocklesby, John, 1811-1889. [from old catalog] · New York, Sheldon and company · leaf 143
regard to the influence of Venus and Jupiter onthe position and magnitude of the spots? APPARENT MOTION OP THE SPOTS. 131 lar equator when Yenus attains her greatest solar lat-itude. Moreover, when Jupiter and Venus are on thesame line with the earth, on the opposite side of thesun, the spots are… … SOLAR SPOTS PERIODS OF VISIBILITY AND INVISIBILITY first appearance will be perceived on the east side ofthe sun, and is then seen to move gradually across thesolar disk, until at length it disappears on the westernside. In this passage it occupies about a fortnight,which is the period of its…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
