Astrophysics (Index)About

primary mirror

(main mirror in a reflector telescope)

A primary mirror is the main, large mirror in a reflector telescope, which may have additional mirrors. The primary mirror is the first mirror off which the light reflects, the following mirrors being called secondary and tertiary. A telescope with no secondary mirror is called a prime focus telescope. Primary mirrors now range up to around 10 meters, but plans are to build telescopes with primary mirrors three times that size.

Further reading:

Referenced by pages:
Cassegrain reflector
chromatic aberration
collecting area
Colossus Telescope
Dall-Kirkham telescope
Gregorian telescope
Herschelian telescope
Hobby-Eberly Telescope (HET)
James Clerk Maxwell Telescope (JCMT)
Kepler Telescope
Korsch telescope
liquid mirror telescope
Nasmyth telescope
Newtonian telescope
off-axis telescope
Origins Space Telescope (OST)
prime focus
Ritchey-Chrétien telescope (RCT)
Southern African Large Telescope (SALT)
Schmidt camera
Schmidt-Newton telescope (SNT)
three-mirror anastigmat
Yolo telescope