Mattison, Hiram, 1811-1868 · New York, Huntington and Savage, Mason and Law · leaf 110
9. What are her Quadratures? Four points in her orbit, 90° apart. (See positions 1,2, 3, and 4, page 101.) 470. What are her Octants ? Eight points, 45° apart. (See A, B, C, D, page 101.) 471. What is the First Quarter 1 It is when the Moon has performed one-quarter ofher journey eastward around… … Here is the same gentleman we saw on the opposite page, now showing his pupils aHalf Mootu, or the Moon at her First Quarter. A week ago she was close to the Sun ashe went down in the west, and was only a slender crescent; but now she is 90° east ofthe Sun, so that she is directly south, when he…
Astronomy
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