01:750:109 Chapter Notes - Chapter 2.1: Celestial Equator, September Equinox, March Equinox
Document Summary
Seasons are a result of the way the tilt of the earth"s axis causes sunlight to fall differently on. Sun always rises somewhere on the east, reaches its highest point around noon, then sets somewhere on the west. Boundary between earth and sky defines the horizon. Meridian is an imaginary half-circle stretching from the horizon due south, through the. Can pinpoint the position of any object in the sky by stating its direction along horizon zenith, to the horizon due north (or azimuth ) and its altitude above the horizon. Sun"s daily path differs at different times of the year. In the north hemisphere, sun"s path is long and high in summer w sun rising well north due east and sets well north due west. In the winter, sun rises well south due east and sets well south due west. Sun never passes directly overhead at this altitude.
