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26 Cards in this Set
- Front
- Back
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hydrogen
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the original element that began star formation
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nebula
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could of dust and gases
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astronomical unit
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unit of measure used within the solar system
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big dipper
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famous example of a crcumpolar constellation
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fusion
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process whre four hudrogen turn into one helioium and teh extra mass is given off as energy
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white dwarf
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very samll. very bright star stage
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protostar
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stage whre clouds of dust and gas begin to form stars
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\neutron
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star stage that pulses out radio waves
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cepheid
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type of variable star with a regular pattern of change
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spiral galaxy
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the milkyh way is an exampleof this type of system
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super nova
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explosion stage of a very large star
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light year
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unit of measure used beyond the universe
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constellation
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group of stars that appear to form a pattern
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eclipsing binary
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two stars of unequal brightness that appear to cahnge brightness over time
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milky way
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one of the 17 local galaxies
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red giant
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star stage when the core collapses and gases expand
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circumpolar
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group of stars that dont set below the horizon
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ireegular
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unorganized galaxy shape, like the magellanic clouds
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main sequencse
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stage of star whre gravity pulling in is equal to forces pushing out
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luminosity
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true brightness of a star
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orion
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good example of a winter seasonal constellation
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big bang
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possible explanation for the formation of the universe
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white dwarf
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very samll very bright star stage
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elliptical
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oval or sphere-shaped galaxy
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quasars
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extremely bright, very distant objects could be galaxies in early tage of formation
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black hole
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very dense object that light cannot excape
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