Astrophysics (Index)About

aberration

(types of flaws in telescope images)

In optics, aberration is an optical system's deviation from true, such as points in the image being smeared and/or shapes being changed. Lenses and mirrors inevitably cause some aberration which can be the primary limit to a telescope's use. They come from a variety of causes resulting in a variety of symptoms. Some classes:


The term aberration has other uses in astronomy that are not related to optics, i.e., better optics would not help:


(telescopes,optics)
Further reading:
http://en.wikipedia.org/wiki/Optical_aberration
http://www.telescope-optics.net/aberrations.htm

Referenced by pages:
astigmatism
barrel distortion
chromatic aberration
convolution
Dall-Kirkham telescope
distortion
deformable mirror (DM)
field curvature
focal plane
focal plane tilt
Herschelian telescope
image stabilization
Korsch telescope
coma
pointing error (PE)
pincushion distortion
Ritchey-Chrétien telescope (RCT)
refracting telescope
Schiefspiegler
Schmidt camera
spherical aberration
Strehl ratio
three-mirror anastigmat
wavefront error (WFE)

Index