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| Paper: |
URAT Optical Design Options and Astrometric Performance |
| Volume: |
338, Astrometry in the Age of the Next Generation of Large Telescopes |
| Page: |
106 |
| Authors: |
Laux, U.; Zacharias, N. |
| Abstract: |
The U.S. Naval Observatory Robotic Astrometric Telescope (URAT) is designed for an automated all-sky survey to provide accurate positions, proper motions and parallaxes on the 10 mas level and below. Here three variations on the Richter-Slevogt design are investigated. The systems feature circular symmetric pupils, small distortions, highly symmetric images with nearly no color errors in a 3° field of view.
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