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 352
g the black ground of the sky.Analogy led many to suppose that the nebulas or records its own spectrum, sometimes many hundred on a singleplate. The advantages of this fortunate arrangement areobvious : peculiarities of spectra are continually leading to thedetection of variable stars that would… … THE BACIIE TELESCOPE AT CAMBRIDGE (Aperture, 8 inches. Employed since 18S5 in photographingttie stars and tlieir spectra. Now mounted at A reouipa,Peru, and in use upon the southern stars. The success0/this photographic instrument led to the construction ofthe Bruce telescope, page 264)
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
