celestial equator

ریشه

The word 'celestial' comes from the Latin word 'caelestis', meaning 'heavenly'. 'Equator' comes from the Latin word 'aequator', meaning 'equalizer'.

مثال

• The celestial equator divides the celestial sphere into the northern and southern hemispheres.
• The celestial equator intersects the horizon at the east and west points.
• The celestial equator is an important reference for astronomers.