celestial longitude
معنی کامل و مثالها
● (نجوم) طول جغرافیایی سماوی، درازای سماوی
ریشه و کاربرد
ریشه
The word 'celestial' comes from the Latin word 'caelestis', meaning 'heavenly'. 'Longitude' comes from the Latin word 'longitudo', meaning 'length'.
مثال
- Celestial longitude is used to determine the position of celestial objects in the sky.
- The celestial longitude of the Moon changes as it orbits the Earth.
- Astronomers use celestial longitude to calculate the positions of planets.
تعریف انگلیسی
noun
- (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 “one hour of right ascension equals fifteen degrees”