Telescopes and cameras | User manual for 2-m RCC telescope | Photogalleries
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
Manufacturer: Carl Zeiss Jena, Germany
Optical design and mount
Coude Design Ritchey-Chretien Design (RC)
1 – 2m primary hyperbolic mirror
2a and 2b – RC and Coude secondary mirrors
3, 4 and 5 – flat mirrors
m – mechanism carrying the primary mirror
n – position for the light receiving equipment
P – counterweight
Î – centre of gravity
s – polished metal sphere (upper bearing)
a – oil-film on the upper spherical bearing
a’ – lower (southern) bearing
See also Change of the optical design
User manual for 2-m RCC-telescope
Photogallery - the 2-m RCC-telescope