Nasmyth–Cassegrain
/ˌneɪsmɪθˈkasɪˌɡreɪn/Astronomy
noun
An altazimuth reflecting telescope in which light from a Cassegrain secondary mirror is reflected by a tertiary plane mirror through 90 degrees, to be brought to an external focus at the side of the tube at its lower end.
Origin
1970s; earliest use found in Journal of the British Astronomical Association. From Nasmyth + Cassegrain.
- autotomic
- autotomise
- autotomize
- autotomizing
- autotomous
- autotomy
- autotoxaemia
- autotoxemia
- autotoxic
- autotoxication
- autotoxin
- auto tracking
- auto-train
- autotransformer
- autotransfuse
- autotransfusion
- autotransplant
- autotransplantation
- autotransplanted
- autotray
- autotroph
- autotrophic
- autotrophically
- autotrophy
- autotropism