The 1.5m Telescope

1.5-m ULE blank obtained from Corning
	  Glass Works, Canton, NY In 1995, Corning sold to us a 1.5-m (60-inch) telescope mirror blank made using the process to make the Ultra Low Expansion, or ULE™, glass. This particular blank was sold to us with the understanding we would retain possession and control of the blank for at least 10 years. That is, the telescope containing this blank must remain at our facility.

To turn this blank into a primary mirror will require an estimated $500,000 and the cost of making a telescope is estimated to be about $6 million. We plan to use the telescope for Near Earth Object (NEO) orbital follow-up studies, NEO characterization, and for programs designated by our donors. For more information, please see our Web site at

Page last updated on: December 6, 2013