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Astronomical aberration, phenomenon wherein objects appear to move about their true positions in the sky •
Chromatic aberration, failure of a lens to focus all colors on the same point •
Defocus aberration, in which an image is out of focus •
Optical aberration, an imperfection in image formation by an optical system •
Relativistic aberration, the distortion of light at high velocities •
Spherical aberration, which occurs when light rays pass through a spherical lens near the edge ==See also==