NASA NTRS · 20080008229
Coma-compensation telescope
Abstract
A telescope for eliminating on axis coma due to tilt of the secondary mirror in infrared astronomy. The secondary mirror of a reflecting telescope is formed to cause field coma to always be equal and opposite at the optical axis of the telescope to tilt coma regardless of the angle through the secondary mirror is tilted with respect to the optical axis.
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MacFarlane, Malcolm J.. 1986-11-25. Coma-compensation telescope. https://ntrs.nasa.gov/citations/20080008229
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