Winter solstice

🌘 21 December

🌍winter solstice, also called hibernal solstice, the two moments during the year when the path of the Sun in the sky is farthest south in the Northern Hemisphere (Dece..21 or 22) and farthest north in the Southern Hemisphere (June 20 or 21)

🌍At the winter solstice the Sun travels the shortest path through the sky, and that day therefore has the least daylight and the longest night. 

🌍When the winter solstice happens in the Northern Hemisphere, the North Pole is tilted about 23.4° (23°27′) away from the Sun.

🌍 Because the Sun’s rays are shifted southward from the Equator by the same amount, the vertical noon rays are directly overhead at the Tropic of Capricorn (23°27′ S). 

🌍Six months later the South Pole is inclined about 23.4° away from the Sun. On this day of the winter solstice in the Southern Hemisphere, the Sun’s vertical overhead rays progress to their northernmost position, the Tropic of Cancer (23°27′ N).