Equinoctial Line (Noun)
Meaning
The great circle on the celestial sphere midway between the celestial poles.
Classification
Nouns denoting spatial position.
Examples
- The Earth's equinoctial line, an imaginary circle on the celestial sphere, passes through the vernal and autumnal equinox points.
- Astronomers often use the equinoctial line as a reference point when mapping celestial objects and their movements.
- The position of the stars and constellations relative to the equinoctial line changes over time due to the Earth's axial precession.
- The celestial equator, also known as the equinoctial line, is a crucial concept in understanding celestial mechanics and astronomy.
- By bisecting the celestial poles, the equinoctial line serves as a dividing line between the northern and southern hemispheres of the celestial sphere.