Sujet

Reflecting telescopes: 1

Légende

Reflecting telescopes: 1. Dominion Astrophysical Observatory, Victoria, B.C. Reflecting telescope with 72-in. mirror.2. Equatorial telescope at Columbia university. (The rising floor is about one-third of the way from the top.)3. U.S. Naval Observatory, Washington. 26-in. Equatorial with which the satellites of Mars were discovered in 18774 & 6. The Lick Observatory: 36-in. refractor with spectrograph attached and (6) the Crossley reflector, showing moving observing platform5. A l/10th scale model of the 200-in. telescope in process of assembly for use of the California Institute of Technology on Mt. Palomar, California.7. This is a cutaway model showing the 200-in. telescope in the dome. Dated 20th Century

Date

20e siècle

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP23A13_417

Licence

Droits gérés

Format disponible

60,0Mo (6,9Mo) / 37,2cm x 40,4cm / 4398 x 4769 (300dpi)

Mots clés

20th Century Photograph Photography Reflecting Telescopes Telescopes Telescope Dominion Astrophysical Observatory Observatory Victoria Equatorial Telescope Columbia University University Columbia U. S. Naval Observatory Naval Observatory Naval Navy Washington America American Mars Satellites Space Lick Observatory Refractor Crossley Reflector Observing Platform California Californian California Institute of Technology Dome Mt. Palomar 20th Century