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.
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
Earth
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.
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.
There is no definitive answer to determine the smartest member in the solar system as intelligence is difficult to measure using a universal standard. However, humans are considered the most intelligent species on Earth due to their advanced cognitive abilities and problem-solving skills.
they are apart of the s.s but most people think there are not important.