Answer:
part of a binary system
Explanation:
Sun is a yellow star, it is a G-type main sequence star. It is yellow dwarf star. It is white but from our earth, it appears yellow. So it is a yellow star.
As mentioned, yes it is a main sequence star.
It is our main part of solar system so it appears to be huge for our earth, however it stands medium in the size among all other billions of stars in the universe.
Sun is solo star, It has no companion star associated with it (as with other stars which have one or more companion star with them making binary or tertiary etc system).
