Stars and telescopes; a hand-book of popular astronomy, founded on the 9th ed. of Lynn's Celestial motions (1899)
Todd, David P. (David Peck), 1855-1939, Lynn, William Thynne, 1835-1911. Celestial motions · Boston, Little, Brown and company · leaf 347
them, the period of revolution and-other data can be found for binary stars so close together asto be forever beyond the separating power of the largesttelescopes. — D. P. T. 288 Stars and Telescopes toward which the Sun was journeying. Approximatedeterminations of this point were simultaneously… … STAR SPECTROSCOPE BY BRASHEAR {Attached to eye end of the 2,6-inch Lick telescope. Also shows accessory-apparatus 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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