Fr.: aberration annuelle
The apparent, small displacement in position of a star during the year due to the → aberration of starlight. It depends on the → celestial latitude, and its maximum value is about 20''.50. See also → constant of aberration; → aberration orbit.
constant of annual aberration
pâyâ-ye birâheš sâlâné
Fr.: constante d'aberration annuelle
Same as → constant of aberration.