What is the difference between a planet and a star?

What is the Difference between a comet asteroid planet moon and star?

• Answer:

  Okay, I am NOT an expert, so this isn't going to sounds sciency, but here's the gist of it: comets are like asteroids, but they move faster and in a generalized direction, rather than just floating aimlessly in space. theyre also smaller. asteroids are large rock formations in space. there is a very large ring of asteroids between the orbits of Jupiter and Mars. planets are HUGE masses of a mixture of substances (there are gas planets and rocky planets, like Earth.) theyre MUCH bigger than any asteroid. (size was the issue with Pluto.) They often have volcanoes, storms, and moons orbiting them. And they all travel around the Sun (or, if you believe there are other "solar systems", any star with a large enough gravitational pull to keep planets in orbit.) in an elliptical shape. (like an egg, in case you arent sure) A moon is a space rock that is somewhere between the sizes of a planet and an asteroid. It ALWAYS orbits a planet, mainly because of its size. A planet can have as many moons as it can support. Jupiter has something like 12, I think. While Earth has one. No limits. :) And a star is a... well, a giant ball of fire. There is too much information about stars to type here, and theyre very interesting, if the sort of thing interests you. Basically, they have layers, like an onion, of heat intensities. The core (think of an apple, the core is where the seeds are stored; in the absolute center.) is the hottest part, while the outermost layer is the coolest, still (in out Sun, a medium-sized star) hundreds of thousands of degrees F. Stars are spread all over space, and theyre so far away, we're practically alone in space. Good thing theres so many of us ;). ((Another interesting fact: Light travels really fast, but we're a REALLY long way from the Sun. I'm not sure exactly how far, but it's a long way... And even thought we may THINK light is and instant thing, it isn't. The sunlight we get on Earth is approx. eight minutes old when it hits the Earth's surface! It's like time-travel! :D heehee)) Anyway, I hope I was of some help to you! :)