The solar term is in B.

(1) winter solstice? Equinox? Summer Solstice? Autumn equinox? (2) 65438+February 22nd? March 2 1? June 22nd? September 23rd? (3) winter? autumn

This question mainly examines the relevant knowledge of the earth's movement. (1) The following solar terms are: a, Tropic of Capricorn is the solstice in winter, c, Tropic of Capricorn is the solstice in summer, according to the revolution direction, b is the vernal equinox and d is the autumnal equinox; (2) Approximate dates of the following points: A is 65438+February 22nd, B is March 2nd1,C is June 22nd, and D is September 23rd; (3) The season in the northern hemisphere at point A is winter, and the season in the southern hemisphere at point B is autumn.