astronomical constant — An Etymological Dictionary of Astronomy and Astrophysics

astronomical constant

پایا‌ی اخترشناسیک، ~ اخترشناختی

pâyâ-ye axtaršenâsik, ~ axtaršenâxti (#)

Fr.: constante astronomique

A precisely measured fundamental quantity in astronomy, such as the → solar parallax, the
→ constant of aberration, and the → obliquity of the ecliptic.

See also: → astronomical; → constant.