Z Dome

Z DomeThe "Z" in Z Dome stands for Cora Zemlock who was a long time member of the MAS who donated the money for the mirror for the Zemlock Telescope that occupied this building. She later left a large endowment fund that has supported the MAS for many years.

The Zemlock reflector was the largest telescope on site. With a 25 inch mirror, it was built as an f/15, classical Cassegrain telescope with an equatorial fork mount. Located under a 22 foot diameter dome, this scope was computerized with high resolution encoders and motor drives which gave it "go to" capability via software. Briefly it was reconfigured in 2013 to be an f/3.4 prime focus CCD imager.


In 2015 it was replaced with a Celestron EdgeHD 14 telescope mounted on an Astrophysics mount which sits atop one of the old forks. The imager is an SBIG model STT-8300. The old telescope now sits on display.

The telescopes sit on the second floor and the first floor contains the club’s office, library, and control rooms. 

Click here to see a gallery of pictures of this observatory.