Where on Earth will an observer find the Sun directly overhead (at the zenith) at local noon on the day of the June solstice?

Answer

Tropic of Cancer ($ ext{latitude} hicksim 23.4^ ext{o}$ North)

The June solstice marks the Sun's farthest northward point, where its declination equals the obliquity of the ecliptic ($23.4^ ext{o}$), meaning the Sun is directly overhead for observers standing on the Tropic of Cancer.

Where on Earth will an observer find the Sun directly overhead (at the zenith) at local noon on the day of the June solstice?
sunastronomypathCelestial sphereecliptic