Briefly, the function of the Palomar ZOO-inch Tele scope is to collect light from celestial objects and concentrate it at the prime focus, or, by a series of additional reflections from auxiliary …

1998年10月1日 · In fact, the RA drive mechanism and variable-rate clock drive of the telescope were so accurate, and the selsyn-driven control panels were so convenient and pleasant to …

'Telescope Structure and Mechanisms' published in 'The Design and Construction of Large Optical Telescopes'

SCHMIDT-TYPE TELESCOPE AT PALOMAR 277 of the polar-axis shaft. Each gear is driven by a single-thread hardened steel worm of 3.988 inches (10. 13 cm) pitch diameter which in turn …

1990年12月13日 · A clutch in the right ascension drive mechanism would slip occasionally, and the night assistant would have to hustle to fix it while astronomers sat watching the minutes …

2012年7月28日 · I just picked up a 4 1/4" Edmund Palomar Jr white tube with the gray equatorial pier mount and a clock drive. I know nothing about the drives on these mounts and could use …

(a) The Palomar 5-meter reflector: The Hale telescope on Palomar Mountain has a complex mounting structure that enables the telescope (in the open “tube” pointing upward in this …

In this chapter we review the general principles conducive to proper opto-mechanical design, look at the conditions imposed on telescope structures and mechanisms, and examine typical …

Palomar Observatory is an astronomical research observatory in the Palomar Mountains of San Diego County, California, United States. It is owned and operated by the California Institute of …

The beautifully machined drive gears, smooth bearings, and the superb variable-rate clock enabled the telescope to point and track with remarkable accuracy, though nowhere near the …