Diameter (D): 12.00 in | Focal length (f): 72.00 in | Luminosity: 1896 x | Focal ratio (F): 6.00 |
Sagitta (z): 0.13 in | Angular resolution: 0.39 sec | Apparent magnitude limit: 15 | Focus tolerance: +- 40 microns |
Minor axis (a): 3.01 in   | Offset: 0.11 in | a': 2.99 in | Primary mirror distance (f-p): 59.02 in | Obstruction: 25.1 % |
Cpl diameter: 1.00 in    (low value ~0.57 in) | Angular field of view: 47.7 minutes | Illumination: 93.72 % |
Focuser vignetting: no | i=0.77 in     j=-0.79 in      | l <= lmax (~6.54 in) |
Primary mirror distance | f | f - 0.79 in | f - 1.57 in | f - 2.36 in | f - 3.15 in | f - 3.94 in | f - 11.70 in | f - 13.00 in | f - 14.30 in |
Optimal diameter size (pumax) | 14.00 in | 13.98 in | 13.96 in | 13.93 in | 13.91 in | 13.89 in | 13.67 in | 13.64 in | 13.60 in |
Axis distance (inch) | 0.51 | 0.55 | 0.59 | 0.63 | 0.67 | 0.71 | 0.75 | 0.79 | 0.83 | 0.87 | 0.91 | 0.94 | 0.98 |
Average illumination (pu=pumax) | 93.61 | 92.85 | 91.77 | 90.48 | 89.12 | 87.64 | 86.04 | 84.44 | 82.78 | 81.02 | 79.30 | 77.53 | 75.79 |
Apparent magnitude lost | 0.07 | 0.08 | 0.09 | 0.11 | 0.13 | 0.14 | 0.16 | 0.18 | 0.21 | 0.23 | 0.25 | 0.28 | 0.30 |
Average illumination (+focuser, pu=pumax) | 93.61 | 92.85 | 91.77 | 90.48 | 89.12 | 87.64 | 86.04 | 84.44 | 80.68 | 74.18 | 67.52 | 60.60 | 53.55 |
Apparent magnitude lost | 0.07 | 0.08 | 0.09 | 0.11 | 0.13 | 0.14 | 0.16 | 0.18 | 0.23 | 0.32 | 0.43 | 0.54 | 0.68 |
Off axis (inch) | 0.12 | 0.20 | 0.31 | 0.39 | 0.47 | 0.55 | 0.63 | 0.71 | 0.79 |
Shift (microns) | 2 | 7 | 17 | 27 | 39 | 54 | 70 | 89 | 109 |
Off axis (inch) | 0.12 | 0.20 | 0.31 | 0.39 | 0.47 | 0.55 | 0.63 | 0.71 | 0.79 |
Length (microns) | 16 | 26 | 42 | 52 | 63 | 73 | 83 | 94 | 104 |