Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
e earthon the 1st of January, and A, a star ob-served at that time. Its apparent place, inthe more didant heavens, will be at H. Insix months the earth will have revolvedaround to the position of N, and the star,A, will appear to be at F. The angle LANwill constitute the angle of parallax. Although… … 454 ASTRONOMY. filled with a. globe of fire, 190,000,000 miles in diameter, and viewed fromthe fixed star, A, it would appear but a point of light one minute (1) indiameter. Therefore, how distant and immense must be the stars. Another evidence of the immense distance and magnitude of the starsis,…
Physics · Astronomy
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
