solar system

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The sun together with the eight planets and all other celestial bodies that orbit the sun.
• noun A system of planets or other bodies orbiting a star.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• proper noun The Solar System; the Sun and all the objects in orbit around it.
• noun Any collection of heavenly bodies including a star or binary star, and any lighter stars, brown dwarfs, planets, and other objects in orbit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the sun with the celestial bodies that revolve around it in its gravitational field