赤せき道どう座ざ標ひょう

noun

equatorial coordinates

Technical term in astronomy; refers to the coordinate system based on the celestial equator.

• 天てん体たいの位い置ちは赤せき道どう座ざ標ひょうで表あらわされることが多おおい。

  The positions of celestial bodies are often expressed in equatorial coordinates.