请输入您要查询的英文单词:

 

单词 right ascension
释义

right ascension

noun Astronomy
The distance of a point east of the First Point of Aries, measured along the celestial equator and expressed in hours, minutes, and seconds. Compare with declination and celestial longitude.The motion of the telescope to the east and west is referred to as the right ascension or hour angle of the telescope....
  • PSR is astronomical shorthand for pulsar, while 1913 is the pulsar's right ascension in celestial coordinates.
  • Any object on the same hour circle will have the same right ascension, just as any place on earth on the same meridian of longitude has the same longitude.
随便看

 

英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/3 14:34:46