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9 Cards in this Set

  • Front
  • Back
Define Solar Nebula
the cloud of gas and dust that formed ur solar system
Define Nuclear Fusion
the combination of the nuclei ofsmall atoms to form a larger nucleus; releases energy
Define Sunspot
a dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic field
Define Corona
the outer layer of the sun's atmosphere
Define Chromosphere
a thin layer below the corona
Define Photosphere
the visible part of the sun that we can see from Earth
Define Rotation
the spin of a body on its axis
Define Orbit
the path that a body follows as it travels around another body in space
Define Revolution (astronomy definition)
the mtion of a body that travels around another body in space: one complete trip along an orbit.