right ascension
短语赤经
词形变化
right ascensions
复数
right ascensions
别名
RA
释义与例句
n.
-
1.
The angular distance east of the vernal point (“the solar zenith at the March equinox”); the celestial equivalent of longitude.
赤经
天文1988, Peter Duffett-Smith, Practical Astronomy with Your Calculator, page 35, The hour-angle, H, and the right ascension, α, are related by the simple formula H = LST − α, where LST is the local sidereal time.