Astronomy Explained Upon Sir Isaac Newton's Principles, and Made Easy to Those Who Have Not Studied Mathematics: To Which Are Added, a Plain Method of Finding the Distances of All the Planets from the Sun, by the Transit of Venus Over the Sun's Disc, in T
Excerpt from Astronomy Explained Upon Sir Isaac Newton's Principles, and Made Easy to Those Who Have Not Studied Mathematics: To Which Are Added, a Plain Method of Finding the Distances of All the Planets From the Sun, by the Transit of Venus Over the Sun's Disc, in the Year 1761: An Account of Mr. Horrox's Observation of the Transit of Venus, in the Year 1639 Aberration of a star, is a small apparent motion, occasioned by a sensible proportion between the velocity of light and that of the earth in its annual orbit. From ...
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Excerpt from Astronomy Explained Upon Sir Isaac Newton's Principles, and Made Easy to Those Who Have Not Studied Mathematics: To Which Are Added, a Plain Method of Finding the Distances of All the Planets From the Sun, by the Transit of Venus Over the Sun's Disc, in the Year 1761: An Account of Mr. Horrox's Observation of the Transit of Venus, in the Year 1639 Aberration of a star, is a small apparent motion, occasioned by a sensible proportion between the velocity of light and that of the earth in its annual orbit. From this cause, every star will, in the course of a year, appear to describe a small ellipsis in the heavens, whose greater axis 40 and its lesser axis, perpendicular to 'the ecliptic, 40 x cos. Of star's lat. (to radius In astronomical calcu lations, where great accuracy is required, and the place of a star concerned, a correction on account of aberration, as well as on other accounts, ought to be applied to the star's place as found in the tables. This correction may readily be found by the following theorems; in which A the star's right ascension, D its declination, and S the Sun's longitude. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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