About the MAS Membership Information MAS Observatory  • A-Scope  • B-Scope  • Albrecht Observatory  • D-Shed  • Zemlock Scope  • Tagney Observatory  • Z-two Scope  • Portable Scopes Observing Information Variable Stars/Exoplanets Special Projects Special Events Astronomy Links Astronomy Vendors MAS Personal Sites MAS Showcase MAS Archives Close-up of A-Scope Armfield Dome The 14 foot "A” dome is named for Lavern Armfield, the founder of the MAS who was involved in the early construction of the observatory. This dome houses the Halbach reflector, named for Ed Halbach who served as the observatory director for 35 years and was an active observer for over 70 years. This scope is a 12.5 inch, f/9, Newtonian telescope on a massive German equatorial mount with a clock drive. RA and DEC are positioned using very large vernier setting circles. A limited fine slew capability (paddle controller) is provided for both axes. A 50mm finder is mounted piggy back. Get Your Own Visitor Globe!