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MDM Observatory's 8K CCD array project:
IMAGING PERFORMANCE AND SPOT DIAGRAMS e-mail: arlin@astro.columbia.edu Telephone: (212) 854-7899 |
For the Byard design, r.m.s. image diameters have been computed for U through
I.
Imaging Performance of Byard Corrector:
| Field Angle | R.M.S. Diam. (U) | R.M.S. Diam. (B) | R.M.S. Diam. (V) | R.M.S. Diam. (R) | R.M.S. Diam. (I) |
| (arcmin) | (arcsec) | (arcsec) | (arcsec) | (arcsec) | (arcsec) |
| 0 | 0.19 | 0.20 | 0.09 | 0.09 | 0.06 |
| 6 | 0.20 | 0.21 | 0.09 | 0.10 | 0.06 |
| 12 | 0.23 | 0.24 | 0.12 | 0.12 | 0.07 |
| 18 | 0.28 | 0.27 | 0.13 | 0.13 | 0.08 |
Spot Diagrams for Byard Corrector (in V):
Scale bar = 1.0 arcsec.
Colors denote spots in the center, and red and blue ends, of the V band.
Spots are shown for 18, 12, 6 and 0 arcmin field radii (top to bottom).