Astronomy terms
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Theory that states that the universe began with a tremendous explosion about 15 billion years ago | The Big Bang Theory
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All space and the matter that space contains | Universe
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A large group of stars in space | Galaxy
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A flattened disk of stars with spiral arms and a central bulge that contains both young and old stars | Spiral Galaxy
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Massive groups of old stars that look like spheres or elongated oval shapes with bright centers | Elliptical Galaxy
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Group of stars that have an irregular structure and do not fit into the other categories | Irregular Galaxy
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A large cloud of dust and gas in space where new stars are formed | Nebula
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Huge bright ball of gas and dust in space | Star
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Where stars spend most of their active life fusing hydrogen to helium and form a diagonal pattern down the center of the H-R diagram | Main Sequence Star
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A star that expands and cools once it runs out of hydrogen | Red Giant Star
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A small hot star near the end of its life; the left over center of an old star | White Dwarf
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The next stage in a star's life cycle after a white dwarf when the star has 'burned out' and no longer shines | Black Dwarf
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The death of a star by a tremendous explosion which releases huge amounts of energy | Supernova
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A star that forms after a supernova in which nearly all the particles have become neutrons | Neutron Star
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A spinning neutron star that emits rapid pulses of light | Pulsar
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#An object that forms after a supernova with gravity so strong that the escape veloxity is greater than the speed of light | Black Hole
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Hertzsprung-Russsel diagram; a graph that shows the relationship between a star's temperature and absolute magnitude | H-R Diagram
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A starlike source of light that is extremely far away and one of the most powerful sources of energy in the universe | Quasar
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Groups of stars within galaxies | Star Cluster
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Created by:
nmerson
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