In the Earth's frame of reference, the Sun's apparent path is called the ecliptic. The ecliptic plane is inclined at 23.5° with respect to the celestial equator because of the tilt of the Earth's rotation axis with respect to the plane of its orbit around the sun.
Why is the ecliptic at an angle?
Due to the tilt of the Earth's rotation axis with respect to its orbital plane, there is an angle of 23.5o between the ecliptic and the celestial equator.
What is an ecliptic angle?
Explanation: The ecliptic is defined in terms of the path of the Sun over a year. It defines the plane in which the Earth's orbit lies. ... So, the ecliptic is inclined at an angle of 23.5° to the celestial equator due to the Earth's axial tilt.
