Mounting of telescope: equatorial german type Main mirror: spherical, 0.4 m Tube: Solid Equivalent focal distance of system: 1.03 m Effective aperture ratio of system: f/2.6 Field of view: 47' x 30' for 14x9 mm detector Instrument : photographic plate Telescope control system: Manual Mounting : worm drive Average sky background brightness in tuorla: 17 mag / square arcsecond in V band Last modification: 19?? |
Väisälä image plane flattener, film holder and camera shutter |