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| | CIW - Academic Catalog - Observatories |
 | | The historic reflectors on Mount Wilsonthe 60-inch, completed in 1909, and the 100-inch, completed in 1918were in their day the world's largest. |
 | | And it was at this telescope, in the dark skies during wartime flouts, that Walter Baade made the observations that led him to the concept of stellar populations that revolutionized astronomy in the early 1950s. |
 | | Fed by the f/11 Gregorian configuration, with an integral ADC and field corrector mounted at the tertiary mirror, the transmitting, all-spherical collimator produces a well corrected, unvignetted field of 24 arc-min in diameter, and slightly vignetted field of 30 arc-sec in diameter. |
| www.carnegieinstitution.org /Academic_Catalog_Revision/observatories.html (2267 words) |
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