THEORITICAL BACKGROUND OF SOLAR TRACKER
14
AEIE, RCCIIT
CHAPTER 3: THEORITICAL BACKGROUND OF SOLAR
TRACKER
3.1 The Earth: Rotation and Revolution
The position of the sun changes continuously throughout the day. It is due to the motion of earth
that we experience sun at different angles in the sky. Earth exhibit two types of motion. One is the
motion of earth along its own axis, and the other is the earth revolving around the sun.
the motion
of the earth along its own axis, known as
rotation
, results in the phenomenon of days and nights.
One rotation of the earth takes 23 hours and 56 minutes. On its own axis, the motion of the earth
is west to east.
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