Photo from San Fernando Observatory website.

The Aerospace Corporation at the Van Norman Reservoir near Sylmar, California constructed the San Fernando Observatory in 1969. It was built for the Space Physics Laboratory with the purpose of conducting solar research.

Boller and Chivens Designed, manufactured and installed a special 24-inch Vacuum Solar Telescope coupled to a Spectroheliograph for Aerospace Corporation for it’s San Fernando Observatory.
Don Winans and Bill DeBoynton of Boller and Chivens installed and tested the telescope and the Spectroheliograph.
The 6.6 magnitude Selmar earthquake sheared the attachment bolts of the telescope base to the observatory’s concrete floor.  Fortunately the observatory dome structure restrained the telescope from toppling over. After resetting the telescopes base attachments and realignment was made, the telescope was finally put into operation. No damage from the earthquake was found to either the telescope or the spectroheliograph.

24-Inch (.61 meter) Telescope Specifications

From MSU website

For more information on the history of this telescope, visit: http://www.pa.msu.edu/astro/observ/tele_past.html

Visit the Michigan State University website for more information on the research programs that use this telescope.

24-Inch (.61 meter) Telescope Specifications

This Boller and Chivens telescope was originally purchased by the University of Iowa but has been relocated to the Cedar Amateur Astronomers location. In 2003, the Cedar Amateur Astronomers were the recipient of a gracious donation from the University of Iowa of a rare and valuable cassegrain telescope made by the Boller & Chivens division of Perkin-Elmer Corp. The research-quality telescope has a 24-inch mirror, and upon installation in a new location will have an estimated value over $250,000. Visit the Cedar Amateur Astronomers site for more information.

The massive 2,000 lbs steel base of the 24-inch Boller & Chivens telescope was installed in the 20’ automated Ash dome. The telescope steel base plate was set down perfectly on the concrete pier’s three one-inch diameter bolts. The conical 42° angled polar axis assembly (over 1,500 lbs) aligning it to the north celestial pole was then set on the base plate. Installation of the telescope tube, the secondary mirror assembly and the primary mirror cell containing the primary mirror completed the installation of the telescope.

24-Inch (.61 meter) Telescope Specifications

Visit the University of Nebraska website for more information about this telescope and its installation at Behlen Observatory.

Al Lilge of Boller and Chivens shown above

Photo from the McDonald Observatory website.

For more information about this telescope, visit the University of Texas,
McDonald Observatory website.

This telescope is now used primarily for a visitors program at the observatory. For more information, visit the Yerkes Website.
The Boller and Chivens 24 Inch telescope is located in the upper right dome.

24-Inch (.61 meter) Telescope Specifications

This telescope is located at the FitzRandolph Observatory of Princeton University. For more information about this telescope, visit the FitzRandolph Observatory website.

This telescope is part of the SMARTS Consortium (Small and Moderate Aperture Research Telescope System) and is located near La Serena, Chile., Chil

Pictures are courtesy of Todd J. Henry, Ph.D. Visit his website about this telescope: http://www.chara.gsu.edu/~thenry/SMARTS/smarts.0.9m.pictures

This telescope is part of the SMARTS (Small and Moderate Aperature Research Telescope System) consortium of telescopes that has a number of universities and observatories as members.

Official website for this telescope.

from Etan J. Tal, via Wikipedia

The Florence and George Wise Observatory is an astronomical observatory owned and operated by Tel-Aviv University. It is located 5 km west of the city of Mitzpe Ramon in the Negev desert near the edge of the Ramon Crater, and it is the only professional astronomical observatory in Israel.

from Wise Observatory website

from Wise Observatory website

from Wise Observatory website

And a great website showing the cleaning and repair of the 40 inch.