Terms in this set (22)
a large body in space that orbits a star and does not produce its own light
an object made of rock, ice, dust, and gas that revolves around the Sun.
asteroids that have broken off the belt and fly through space
an object that is found in the solar system, orbits the Sun, and is much smaller than a planet
meteors that have fallen to Earth
galaxy that has a rotating disk of stars and dust
egg shaped galaxy
galaxies that were once spiral or elliptical shaped
a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.
cloud of gas and dust located between the stars
space as a whole
explosion of a star
region of space between Mars and Jupiter where most asteroids are found
a system of planets and other bodies that orbit a star
the galaxy containing our solar system
a star that is the basis of the solar system and that sustains life on Earth, being the source of heat and light
the path one object in space takes around another one.
made up of rock: Mercury, Venus, Earth and Mars.
made up of gases: Jupiter, Saturn, Uranus, and Neptune.
time it takes a planet to complete one orbit.
the motion of one object around another object
the turning of an object on its axis