.. which is defined to be between the tropic of cancer and tropic of capricorn; 23°26′12.2″ north and south of the equator respectively.
Re:Earth and Sun
by TheSpiceIsLife on Friday October 18, 2019 @11:02PM
(#21296526)
Which is because the earths axial tilt is that angle:
Earth's mean obliquity is currently 23°26′12.2″ (or 23.43672°) and decreasing.
It's only ever directly overhead in the tropics.