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vatt:specifications [2021/03/31 12:18] paul created |
vatt:specifications [2023/04/25 21:21] (current) paul [Geographical Location of 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 | ||
==== Geographical Location of VATT ==== | ==== Geographical Location of VATT ==== | ||
- | Latitude : 32° 42' 04.69" N | + | Latitude : 32° 42' 04.69" N\\ |
- | Longitude : 109° 53' 31.25" W | + | Longitude : 109° 53' 31.25" W\\ |
- | Altitude : 3191 meters | + | Altitude : 3191 meters\\ |
- | Driving time from Tucson : 3.5 hours in good conditions | + | Driving time from Tucson : 3.5 hours in good conditions\\ |
IAU Observatory Code number : 290 | IAU Observatory Code number : 290 | ||