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Telescope - Coggle Diagram
Telescope
Quantity the performance
Focal ratio
PSF
Plate scale
Angular resolution
Seeing limited
Diffraction limited
Light gathering power
Telescope basics
Mounts
Equatorial/Polar
Alt-Az
Aberrations
Off-axis aberrations
Distortion
Field curvature
Astigmatism
Vignetting
Coma
Spherical
Chromatic
Assumption and basix setup
Focus
Cassegrain Focus
Nasmyth Focus
Primary Focus
Coudé Focus
Parallel rays of light
Refraction and reflection
Signal-to-noise ratio
Noise: linear with square root of time
Signal: linear with time