Scientists used to wonder; are planets rare, or are they common? Arguments went both ways.
But over the past 10 years or so, we have discovered over 300 planets orbiting other stars. With the rapid improvement in space-based telescopes and better image processing software, it begins to look like planets, and planetary systems, may be the norm; that single stars without planets may be the unusual case.
the purpose is the gravitational pull wich keeps the planets and stars from drifting apart
The other planets in our are warmed by the sun, some more than others depending on their distance to the sun. The other stars are too far away to warm the planets.
Planets orbit the sun. Stars do not.
Orbiting stars. We know of eight planets orbiting our Sun, and we know of over 300 planets orbiting other stars.
The Sun, Earth and other planets, along with many other items are part of a Solar System.
That doesn't make sense. There are stars, and there are planets. If you mean "planets around stars, other than the Sun", those are usually called "extrasolar planets" or "exoplanets".
No. Other stars have been found to have planets orbiting them.
Eight planets orbit our sun. More than a thousand planets far beyond our solar system are known to orbit other stars.
exoplanets
The planets reflect sunlight, but the stars are too far away to have any significant effect.
Stars (apart from our Sun) are not a part of our Solar System.Stars (apart from our Sun) are not a part of our Solar System.Stars (apart from our Sun) are not a part of our Solar System.Stars (apart from our Sun) are not a part of our Solar System.
The Sun and orbiting planets are MUCH closer to the Earth than other stars.