Twenty-four solar terms, how many years overlap. For example, this year 165438+ 10/7 is the winter solstice. Too many teenagers will have this winter solstice again.

Twenty-four solar terms, how many years overlap. For example, this year 165438+ 10/7 is the winter solstice. Too many teenagers will have this winter solstice again. For your question, it should be 19 or so.

The vernal equinox and solstice of the lunar calendar will remain unchanged (there is little difference before and after). This is because the point (celestial pole) pointing from the earth's rotation axis to the celestial sphere makes a conical motion around the longitudinal axis (ecliptic axis) of the ecliptic plane, and draws a small circle with a radius of 23 27' on the celestial sphere. Produced. Precession is the long-term movement of the earth's rotation axis in space. It should be pointed out that although precession changes the spatial phase of the equinox on the ecliptic, it does not change the four seasons of the earth. This is because the tropic of Capricorn, as the basic unit of the calendar year, is calculated from the vernal equinox. No matter how the precession changes, the longitude values of solar terms (dates in the Gregorian calendar) such as four seasons, vernal equinox, autumnal equinox, summer solstice and winter solstice remain unchanged.