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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Nebular hypothesis |
The entire solar system originated from a large swirling cloud of gas dust and debris |
General view of the solar system origin |
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Accretion disk |
A rotating disk of matter formed by accretion around a massive body such as a 🕳 under the influence of gravity |
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Asteriods |
Large rocky objects orbiting the sun most not massive enough to be round |
Rocky and solid |
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Comets |
Large dirty snowballs on elongated orbits which begin to vaporize as their orbits bring them closer to the sun. Develop comas and long tail pointing away from the sun |
Cousins to asteroids. Smaller. Made of largely volatiles |
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Meteoroid |
A small body moving in the solar system that would become a meteor if it entered the earth's atmosphere |
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Meteor |
Shooting star phase |
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Meteorite |
A meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground |
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Jupiter's moons |
Ganymede, Io, Europa, Callisto |
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Saturn's moon |
Titan |
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Neptune's moon |
Triton |
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Kuiper belt |
Beyond the Jovian planets is a region of large icy objects |
Thought to be the place of origin of the short period comets |
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Oort cloud |
A more distant region surrounding us in spherical symmetry in all directions |
Considered the source region for long period comets |
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Terrestrials |
Inner planets earth like Tiny, tightly packed close to the sun, very little atmosphere, high average density, very little hydrogen, no natural helium, no rings and only earth's moon |
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Jovians |
Jupiter like Gigantic, much further out and more widely separated, gigantic gas balls with very low density, vast amounts of hydrogen and helium, many moons, Saturn's rings |
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