Webster\u27s Zones

The inclination of the earth\u27s equatorial plane to the plane of the earth\u27s orbit around the sun, termed the obliquity of the ecliptic by astronomer\u27s, is approximately equal to 23º27\u27 of arc. If this inclination were 0º the sun would remain directly overhead the Equator throughout the year and there would be no seasons. In reality, the directly overhead point of the sun moves north and south with the seasons