What season has the longest shadow?

Solstice of winter. The shadow is the longest, that is, the height angle of the sun is the smallest at noon. When the sun directly hits the tropic of Capricorn, it is the winter solstice in the northern hemisphere, that is, the winter is about 12.22. The height angle of the sun in the northern hemisphere is the smallest and the shadow is the longest. Winter solstice is the 22nd solar term in a year, with the shortest day and the longest night.