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vatt:specifications [2021/03/31 12:18] paul created |
vatt:specifications [2023/04/25 21:21] paul [General Information on the VATT] |
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==== General Information on the VATT ==== | ==== General Information on the VATT ==== | ||
- | Optical System : aplanatic Gregorian, f/9 | + | Optical System : aplanatic Gregorian, f/9\\ |
- | Focal Length : 16.48 m | + | Focal Length : 16.48 m\\ |
- | Primary Mirror : f/1.0, Diameter 1.83 meters | + | Primary Mirror : f/1.0, Diameter 1.83 meters\\ |
- | Secondary Mirror : f/0.9, Diameter 0.38 meters | + | Secondary Mirror : f/0.9, Diameter 0.38 meters\\ |
- | Back Focal Distance : 50.80 mm (effective) | + | Back Focal Distance : 50.80 mm (effective)\\ |
- | Vignetting-Free Field : 72 mm diameter (15 arcmin) | + | Vignetting-Free Field : 72 mm diameter (15 arcmin)\\ |
- | Image Scale : 12.52 arcsec/mm | + | Image Scale : 12.52 arcsec/mm\\ |
- | Image quality : 0.1 arcsec throughout 6.8 arcmin diameter flat FOV | + | Image quality : 0.1 arcsec throughout 6.8 arcmin diameter flat FOV\\ |
Mount : altitude-azimuth with derotator | Mount : altitude-azimuth with derotator | ||