The ED II is the largest Observatory Dome we make it is 11'6" on the body diameter 12" 6" on the rails of the door. The shutter opening is 45" and goes 15 degrees past Zenith. The shutter opening is covered by 2 doors that telescope
inside one another. It comes partially assembled but has been fully assembled at the factory . The Dome has aluminum supports on each side of the shutter opening for added strength and an aluminum wheel ring for roundness and added
strength . The EDII also includes the 8' aluminum mounting ring.
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