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.
- Mediterranean blue
- Mediterranean climate
- Mediterranean diet
- Mediterranean fever
- Mediterranean flour moth
- Mediterranean fruit fly
- Mediterraneanisation
- Mediterraneanise
- Mediterraneanised
- Mediterraneanization
- Mediterraneanize
- Mediterraneanized
- Mediterranean pine
- Mediterranean Sea
- Mediterranean spotted fever
- Mediterranean-style
- Medithermal
- medium
- medium bomber
- medium-close shot
- medium close-up
- medium-dated
- medium density fiberboard
- medium density fibreboard
- medium dry