专业释义英英释义
right ascension
-
n.
(astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere
同义词： RA celestial longitude
以上来源于: WordNet
柯林斯英汉双解大词典
right ascension
-
1.
N the angular distance measured eastwards along the celestial equator from the vernal equinox to the point at which the celestial equator intersects a great circle passing through the celestial pole and the heavenly object in question 赤经 ( symbol: α) [astronomy] → compare declination
双语例句权威例句
-
The location is also noted in the lower right corner in celestial coordinates (Right Ascension and Declination).
这个位置也以天球坐标形式显示在右下角（赤经和赤纬）。
-
Phase modulated resolvers can be used to model the relation between the sidereal time right ascension and the hour angle.
工作在调相状态下的旋转变压器可以用其相位模拟恒星时与赤经、时角的关系。
-
Using the Snell's law in polar coordinates, the ionospheric refraction effects on the declination and right ascension determination is discussed in this paper.
本文利用极坐标下斯涅尔定律，系统地讨论了电离层折射对赤经赤纬的修正问题，并据此给出了射线描迹法。
应用推荐