Fr.: aberration séculaire
The smallest component of the aberration of starlight which is caused by the motion of the solar system through space. → annual aberration; → diurnal aberration.
→ secular; → aberration.
Fr.: aberration sphérique, ~ de sphéricité
An aberration of a spherical lens or spherical mirror in which light rays converge not to a single point but to a series of points with different distances from the lens or mirror. Spherical aberration is corrected by using parabolic reflecting and refracting surface.
→ spherical; → aberration.
Fr.: aberration stellaire
Same as → aberration of starlight .