Telescopes and CCD-cameras | User manual for 2-m RCC-telescope | Photogalleries
The 2-m Ritchey-Chretien-Coude (RCC) Telescope
Îptical parameters
Diameter of the Primary mirror: 2 m
By system Ritchey-Chretien
Focal length: 16 m
Focal ratio: f/8
By system Coude
Focal length: 72 m
Focal ratio: f/36
Optical design and mount
Coude Design Ritchey-Chretien Design (RC)
1 - 2m primary hyperbolic mirror
2a and 2b – Coude and RC secondary mirrors
3, 4 and 5 - flat mirrors
F Êóäå - Coude focus
F ÐÊ - Ritchey-Chretien focus (RC-focus)
P - counterweight
Î - centre of gravity
s - polished metal sphere (top bearing)
a - oil-film for top bearing
a’ - bottom (sout) bearing
See also Change of the optical design
User manual for 2-m RCC-telescope
Photogallery - the 2-m RCC-telescope