Tilt and azimuth

The position of the sun in the sky for any place on the planet depends on the time of the day and the time of the year. The amount of energy produced by a PV module depends upon its position relative to the sun, therefore it is necessary to position them properly. PV modules need to be positioned to be able to take maximum advantage of the sun

• The time of the day directly affectsThe earth makes a complete rotation about its own axis approximately every 24 hours. As the earth rotates the sun moves through the sky each day, rising in the East and setting in the West.

The earth rotates around the sun in a nearly perfect circle one time every 365 days. Better color/image simulator for graphics https://ccnmtl.github.io/astro-simulations/sun-motion-simulator/#

Original https://astro.unl.edu/naap/motion3/animations/sunmotions.html