Respuesta :
The precession of earth's rotational axis causes the location of the North Celestial Pole and South Celestial Pole, Vernal Equinox and Autumnal Equinox, Summer Solstice and Winter Solstice to change.
The Sun and Moon's gravitational pull on Earth's equatorial bulge is what causes precession. The north and south celestial poles are two distinct locations that appear at opposing ends of the Earth's axis of rotation as it is projected into the sky. These points create circles in the sky due to precession. The Vernal Equinox, which is the point at which the celestial equator and ecliptic meet close to where the Sun is in the Northern Hemisphere Spring, serves as the celestial longitude zero point. The Autumnal Equinox occurs at the other point where the Celestial Equator and the Ecliptic cross. The durations of day and night are equal when the Sun is at one of the equinoxes.
The summer solstice is the longest day of the year and the winter solstice is the shortest day of the year in each hemisphere. The June solstice, when the North Pole is tilted closest to the Sun and the Sun's rays are directly above in the Tropic of Cancer, ushers in summer in the Northern Hemisphere. Winter officially begins on December 21st, when the South Pole is tilted closest to the Sun and the Tropic of Capricorn receives direct sunlight. On these days, the Sun's rays will be farthest north or south from the equator in the sky.
Learn more about Equinox here:
https://brainly.com/question/1006764
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