right ascension

right ascension of the mean sun

平均太阳赤经

he used one of these to measure the difference in right ascension between two celestial bodies and another one to find the angular distance from the celestial north pole to a given star.

他用其中一个仪器测量两个天体的赤经差，用另一个仪器测北极与某颗星的角距离。

The correction in right ascension of 508 stars determinated with PMO photoelectric transit instrument

紫台光电中星仪测定的508颗恒星的赤经改正

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。

geocentric conjunction in right ascension

地心赤经合

The relation of the right ascension and argument of perigee of the required orbit with the lunar position is derived within one lunar month. Based on this relationship the launch opportunity and launch window are discussed.

文章分析了月球在一个恒星月内位置变化与相应的地月转移轨道升交点赤经和近地点幅角变化的关系，在这个基础上讨论了发射机会和发射窗口问题。

The correction in right ascension of 508 stars determinated with PMO photoelectric transit instrument in 1980& 1985 to FK5 system is given in the paper.

本文给出了紫台光电中星仪1980&1985年的观测归算到FK5（J2000.0年）星表系统的508颗恒星的赤经改正。

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。

Each search area is about 10 degrees in declination and one hour of right ascension.

每个搜索区域有大约包括赤纬10度,赤经一小时.

The height of perigee, inclination and right ascension of ascending node ( RAAN) are chosen as characteristic quantity in the orbit correlation considering the character of the error of IOD process.

在轨道关联中考虑到初轨计算的误差特征，选取近地点高度、轨道倾角和升交点赤经作为用于关联的轨道量。

The location is also noted in 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).

How to complete the calculation of sun declination, sun right ascension, sun greenwich hour angle, greenwich hour angle of aries and sun local hour angle in Astronomical Position.

利用计算机完成天文定位中的太阳赤经、赤纬、太阳格林时角、春分点格林时角、测者地方时角的计算。

a large reflect meridian circle is an instrument for the absolute determination of the declination and right ascension of a star.

大型反射子午环是用来绝对测定恒星赤经和赤纬的仪器。

The correction in right ascension of 508 stars determinated with PMO photoelectric transit instrument in 1980& 1985 to FK5 system is given in the paper.

本文给出了紫台光电中星仪1980&1985年的观测归算到FK5（J2000.0年）星表系统的508颗恒星的赤经改正。

Therefore more to behind, counts the circle of right ascension the condition to be worse.

所以越到后面, 计时圈的条件就越恶劣.

One hour of right ascension equals fifteen degrees.

每小时的赤经等于15度.

Moreover, out-plane inclination maneuver should be completed at perigee or apogee to influence right ascension of ascending node the least.

另外，平面外倾角调整应尽可能在近地点和远地点完成，以使对升交点赤经的影响最小。