Object Details
Manufacturer
California Institute of Technology
Summary
This is a guiding eyepiece used by observers with the Prime Focus Spectrograph of the 200 inch Hale Telescope at the Mt. Palomar Observatory operated by the California Institute of Technology. The eyepiece monitored the reflection of an image off the jaws of the entrance slit of the photographic spectrograph.
The prime focus spectrograph was designed and manufactured at the California Institute of Technology in the late 1940's for installation on the then-new 200 inch Hale Telescope. It was in use almost continually from 1950 through 1973 providing a wealth of data on the redshift, on white dwarf stars, and on quasars. It was donated to NASM by the California Institute of Technology in 1998. It is now on display in the "Explore the Universe Gallery" along with the Prime Focus Spectrograph.
Credit Line
Gift of the California Institute of Technology Palomar Observatory. No restrictions.
Inventory Number
A19980112000
Restrictions & Rights
Usage conditions apply
Type
INSTRUMENTS-Scientific
Materials
Glass, Plastic, Aluminum, Steel, Copper, Brass, Paint
Dimensions
3-D: 33 x 7.6 x 6.4cm (13 x 3 x 2 1/2 in.)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
Data Source
National Air and Space Museum
Link to Original Record
Record ID
nasm_A19980112000