Where are the direct points of vernal equinox, summer solstice, autumn equinox and winter solstice?

The solar terms are straight latitude, vernal equinox, equatorial March 2 1 summer solstice, tropic of cancer (23 degrees 26 minutes north latitude), June 2, autumn equinox, equatorial September 23, winter solstice, tropic of cancer (23 degrees 26 minutes south latitude), 65438+February 2 2.

. The vernal equinox falls on March 2 1 (or 20) every year; The direct point of the sun is on the equator; The polar circle moves to the north and south poles; The length of day and night in the world is equal; At noon, the height angle of the sun is 90 on the equator-direct, the height of the sun decreases from the equator to the poles, and the height angle of the sun at the poles is 0.

The autumnal equinox is on September 23rd (or 22nd) every year; The direct point of the sun is on the equator; The polar circle moves to the north and south poles; The length of day and night in the world is equal; At noon, the height angle of the sun is 90 on the equator-direct, the height of the sun decreases from the equator to the poles, and the height angle of the sun at the poles is 0.