Stars and telescopes; a hand-book of popular astronomy founded on the 9th ed. of Lynn's Celestial motions (1901)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911 · Boston, Little, Brown · leaf 341
n them, the period of revolution andother data can be found for binary stars so close together asto be forever beyond the separating power of the largesttelescopes. — D. P. T. 28S Stars and Telescopes toward which the Sun was journeying. Approximatedeterminations of this point were simultaneously… … -. j STAR SPECTROSCOPE BY BRASHEAR (Attached to eye end of the 36-inck Lick telescope. A ho shows accessoryapparatus for producing comparison spectra) on proper motions determined by Maskelyne ; andin later times others were made by different astrono-mers, all of whom agree in placing the apex of…
Astronomy
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