constant of diurnal aberration — An Etymological Dictionary of Astronomy and Astrophysics

constant of diurnal aberration

پایا‌ی ِ بیراهش روزانه

pâyâ-ye birâheš ruzâné

Fr.: constante d'aberration diurne

The quantity 0’’.3200 ρ cos φ’, where ρ is the geocentric distance of the observer measured in units of → equatorial radius the Earth and φ’ is the observer’s → geocentric latitude. The numerical part is equal to 2πa csc1’’ / (cP), where a is the equatorial radius of the Earth, P is its → sidereal period of rotation, and c is the → speed of light in vacuum.

See also: → constant; → diurnal; → aberration.

An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک