A new treatise on astronomy, and the use of globes : in two parts ... (1866)
M'Intire, James, 1799-1879 · New York : Published by A.S. Barnes & Burr ... · leaf 61
S E = E S C + E S C= p + p, but p + p = il. sin. Z + H. sin. Z by the lastarticle; hence H sin. Z + H sin Z = c? — d, or— H ^-^ sin. Z -]- sin. ZBy means of this formula, the horizontal parallaxes of thesun and planets may be found. In regard to the parallax ofthe moon, it will be necessary that… … OF THE SUN. 55 The suns parallax, by the foregoing process, may befounil within 1 or 2 of the truth. By means of a moreaccurate method, namely, the transit of Venus,-ProfessorEncke, of Berlin, has found the suns mean horizontalparallax to be 8.5776.* From repeated observations made on the moon,…
Astronomy
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