Nordic Optical Telescope
Telescope:
(Super) Ritchey-Chretien
f=28160 mm, F=f/11
Primary mirror:
Diameter 2560 mm
thickness 190.3 mm
f=5120 mm,F=f/2
Conic constant -1.014785
Secondary mirror:
Diameter 510 mm
R=-2287.25 mm
Conic constant -2.234127