ASTEROIDS. Objects made of rock, metal and ice that are much smaller than planets and revolve around the Sun, mostly concentrated in a belt between Mars and Jupiter.
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Objects made of rock, metal and ice that are much smaller than planets and revolve around the Sun, mostly concentrated in a belt between Mars and Jupiter.
Asteroids are found all throughout our solar system, but seem to be more concentrated in a belt between Mars and Jupiter’s orbits.
Asteroids occur in many different sizes and shapes.
FYI- Large asteroids are sometimes called “Minor Planets”.
A cloud of dust and gases called a COMA surrounds the core. The COMA and the CORE form the comet’s head.
A comet’s head is usually smaller than most asteroids; however the tail can extend millions of kilometers.
FYI- As a comet approaches the sun, the solar wind creates a long glowing tail on the comet.
MoonsA natural satellite, or an object that revolves around a planet.held in place by the gravitational pull of the planet and are at the exact distance necessary to orbit (any closer they would be pulled into the planet and any further they would drift off into space).
A celestial body that is or was orbiting a star or stellar remnant and is massive enough to be rounded by its own gravity—two main types terrestrial and gas giants
Huge objects in space made up of gas and giving off light and heat from nuclear reactions
Consists of the Sun(star) and those celestial objects bound to it by gravity (including the asteroid belt and dwarf planets).
FYI-The Milky Way has a diameter of about 100,000 light-years. The solar system lies about 25,000 light-years from the center of the galaxy. There are about 100 billion stars in the Milky Way.
A system of stars, dust, and gas held together by gravity-- shaped like a disk with a bulge in the center. The disk resembles a pinwheel, with bright spiral arms that coil out from the central bulge
FYI-The Milky Way, for example, makes a complete revolution once every 250 million years or so.
A system of stars, dust, and gas held together by gravity-- same spiral structure as normal spirals, but also have a prominent ‘bar’ that extends from both sides of the nucleus
A system of stars, dust, and gas held together by gravity--lack a simple shape.