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 311
KY WAY IN SAGITTARIUS (R. A. = l8h 10. DECL = S. 20°)(Photographedby Professor Barnard at the Lick Observatory. Exposure, t,\ hours) 2;8 Stars and Telescopes Another star, as bright at one time as the planetVenus, is said to have appeared in the year a. d. 389 an exceedingly accurate observer of… … THE MERIDIAN PHOTOMETER OF HARVARD COLLEGE OBSERVATORY (Devised by Professor Edward C. Pickp.ring, and used under his direction indetermining the magnitude of all the bright stars in iht entire sly) Stellar photometers are of varied designs. PRITCHARD useda so-called wedge photometer, in which a…
Astronomy
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
