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15 Cards in this Set
- Front
- Back
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astronomy is
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compisition and movement if heavenly bodies
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astrophysics is
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attempts to explain principles and laws behind thinking
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big bang theory is
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theory believed to tell the origin of the universe- explosion 15 billion yo
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Hubble law is
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equation to explain the spped the universe is expanding and age
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optical telescopes
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refracting and reflecting
gathers lightf rom celestial objects |
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refracting telescope is
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long tube with lens at both ends
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reflecting telescope is
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long tube with a concave mirror at one end
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radio telescopes
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detect and enalyze readio waves from stars/ galaxies
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ultraviolet telescopes
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used to study UV light from heavenly bodies-
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Hubble Space Telescope (HST)
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consist of all telsecopes
UV Radio optical |
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spectographs
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instruments used to study the universe they anaylze light from stars
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infrared astronomy
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detects and measures long infrared waves from from targets and determines the temp
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radar astronomy
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radio waves bounce off distant object to earth
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white darfs are
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stars that are 100x denser then the sun- gaseous states- at end of life
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black dwarfs are
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white dwarf stars that no longer shine b/c they have cooled too much over the years
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