Newcomb, Simon, 1835-1909, Holden, Edward Singleton, 1846-1914, joint author · New York, H. Holt · leaf 490
ing is a function of thevelocity of recession or ap-proach, and this velocity inmiles per second can becalculated from the meas-ured displacement. This has been done for many stars by Dr.Huggins, Dr. Vogel, and Mr. Christie. Their results agree well,when the difficult nature of the research is… … Fig. 134. -F-LINE IN SPECTRUM OPSIRIUS. CHAPTER VI. MOTIONS AND DISTANCES OF THE STAES. I § 1. PROPER MOTIONS. We have already stated that, to the unaided vision,, thefixed stars appear to preserve the same relative position inthe heavens through many centuries, so that if the an-cient astronomers…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
