Yes, that's where the word comes from. The official, formal name for the sun is "Sol", and
the adjective that refers to anything associated with the sun is "SOL-ar".
solar system. solar = sun
Solar is a word to describe anything relating to the sun, therefore solar power is energy that is sourced from the sun.
Energy From The Sun
Solar is Sun so without the Sun there is no solar.
Solar
The adjective used to describe a noun as of or related to the sun is solar.
The word solar and the prefix helio- pertain to the sun.
you can describe it by
in relation to earth the sun is in the center of our solar system and we revolve around the sun
Describe the orbit of a planet (or other body in the Solar system) about the Sun.
concentric eclipses of very little eccentricity centered about the sun. Most planets within 5' of the ecliptic.
That would be difficult to explain. -- The Sun IS a star. -- It IS in my solar system. -- It's the ONLY star in my solar system. -- So the sun is THE star in my solar system.