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26 Cards in this Set

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