The Sun is the most important member of our solar system with out it the earth would not be able to survive.
sun
The Sun, it provides light and warmth.
the sun
All depends on what you consider 'important'. To me, I'd say it's the sun. Without a few of the planets, or asteroids, or comets, or the Kuiper Belt, or the Oort Cloud, you'd still have a Solar System. But without the sun, you wouldn't.
Earth
The most important force in maintaining the shape of the solar system is the force of gravity.
its the brightest planet in the solar system
It is the most distant object known.
it is the most distant object object known
The formation of sun is the most important part of solar system formation. Sun is the reason for formation of rocky planets.
It is the most distant object known
A solar system could simply have one planet, the most important thing is that it has to have a sun with celestial bodies that revolve around it in its gravitational field to be classified as a solar system.