Inside Out Library

Elements of astronomy ... with explanatory notes, and questions for examination (1855)

Brocklesby, John, 1811-1889 · New York, Farmer, Brace & co. · leaf 114

An illustration from Elements of astronomy ... with explanatory notes, and questions for examination, 1855, leaf 114
parentdiameter. At the distance CB which is twice CB1 the apparent diameterof A is LCD, the half of DCL1 or an angle of five degrees. Thus the lawis proved. : —. -^ _ Apply it to the motions of the earth in reference to the sun ? What do the changesmentioned show in respect to the position of the… … earths orbit. draw a line SE one inch in length for instance, repre-senting the distance of the sun from the earth on theday when the sun appears the largest. We now drawfor the next day a line ES1 making an angle with ESequal to the observed angular motion of the sun, sinceit was at S the day…

Astronomy

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

More pictures from Elements of astronomy ... with explanatory notes, and questions for examination

More like this