Our Sun, although with the amount of debris in Earth orbit...
A solar system.
Natural objects that orbit a star form that star's solar system. The name comes from the name of our star, which is Sol. Earth is part of the Solar System. Another star's system might be referred to by the name of that star, as in the Polaris System.
Sirius is not part of our Solar System, so it is not appropriate to talk about "other objects in the solar system".
Geocentricism is the belief that the Earth is the center of the Universe and all other celestial objects revolve around it. (The Geocentric Theory)
Earth is.
Our Sun, although with the amount of debris in Earth orbit...
most of the objects in our solar system orbit what celestial body
A solar system.
If the objects are in orbit around the sun then they are in the Solar System.
solar system
The orbit
The sun
It is impossible to answer this question "which of these" as you have given no choice.
Can't resist this! My wife's! -- There are no known celestial objects in space that are known to not be part of the solar system.
The solar system is made up of many plants, dwarf planets, meteorites and asteroids. Asteroids are the celestial objects composed of ice, gases and rocks that orbit the galaxy.
The Solar System!!
The Sun's Gravity