In optics (especially telescopes), the coma (/ˈkoʊmə/), or comatic aberration, in an optical system refers to aberration inherent to certain optical designs...

comet Coma (optics), the comatic aberration Coma Cluster, located in the constellation Coma Berenices Coma Star Cluster, in Coma Berenices Coma Supercluster...

to water coming off the comet remained constant for several months. Coma (optics) Comet nucleus Extraterrestrial atmospheres Combi, Michael R.; Harris...

in turn improved upon by Alhazen (Book of Optics, 11th century). The Arabic translation of Ptolemy's Optics became available in Latin translation in the...

Adaptive optics (AO) is a technique of precisely deforming a mirror in order to compensate for light distortion. It is used in astronomical telescopes...

hyperbolic secondary mirror designed to eliminate off-axis optical errors (coma). The RCT has a wider field of view free of optical errors compared to a...

In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused...

increasingly serious coma for visual or photographic use. Low focal ratio primary mirrors can be combined with lenses that correct for coma to increase image...

Fourier optics is the study of classical optics using Fourier transforms (FTs), in which the waveform being considered is regarded as made up of a combination...

telescopes, corrected for spherical aberration, coma, astigmatism, and field curvature". Applied Optics. 11 (12): 2986–2987. Bibcode:1972ApOpt..11.2986K...