It is the angle between the equatorial plane, which is determined by Earth's rotation, and the ecliptic plane, which is the Earth's orbital plane around the Sun.
(It; is; the angle between the equatorial plane, which is determined by Earth's rotation, and the ecliptic plane) (the equatorial plane; is determined; by Earth's rotation) (the ecliptic plane; is; the Earth's orbital plane)
It the equatorial plane the ecliptic plane
is is determined is
the angle between the equatorial plane, which is determined by Earth's rotation, and the ecliptic plane
by Earth's rotation
the Earth's orbital plane