tropic of cancer and tropic of capricorn are lines of
Tropic of Cancer The Tropic of Cancer, also referred to as the Northern Tropic, is currently 23°26′13.1″ (or 23.43696°) north of the Equator. It is the most northerly circle of latitude on Earth at which the Sun can be directly overhead. This occurs on the June solstice, when the Northern Hemisphere is tilted toward the Sun to its maximum extent.[1]
Sun path The same stick will cast no shadow on the summer solstice in the Northern Hemisphere when the subsolar point is on the Tropic of Cancer 23.44째 north of equator. Although north of 23.44째N the shadow will point towards true north and south of 23.44째N the shadow will point towards true south. The reverse occurs on the winter solstice in the Northern Hemisphere when the subsolar point will be on the Tropic of Capricorn 23.44째S and a vertical stick will cast no shadow along that point. But north of the Tropic of Capricorn solar noon shadows will point towards true north and south of the Tropic of Capricorn shadows will point towards true south.