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31 Cards in this Set
- Front
- Back
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Visible Light
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narrow range of wavelengths
red,orange,yellow,green,blue, indigo,violet, ROY G BIV |
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Refracting telescope
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telescope that uses lens to from a real image and a magnifying glass to enlarge it
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Eye piece
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magnifier used to examine image
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Objective
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lens or mirror that forms the real image
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Dispersion
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spreading out of light into its component colors
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Spectroscope
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tool (prism) used to separate white light into its component colors
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Spectrograph
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telescope with a camera which allows a star's spectrum to be photographed
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ROY G BIV
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colors that white light is broken into. Visible light that our with a narrow range of wavelengths
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Intensity
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brightness
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Wave Length
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color
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Spectrum
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colors that white light is broken into
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Prism
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tool also known as a spectroscope
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Nebulae
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cloud of dust and gas
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Star
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big ball of burning gas. Stars differ in size,temperature and age
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Luminosity
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actual amount of light a star shines into space each second
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Apparent brightness
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what we perceive as being bright vs. dim
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Main sequence
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region across the diagram
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Reflecting telescope
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telescope that uses mirror to form a real image and a magnifying glass to enlarge it
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Sun
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luminous celestial body around which the earth and other planets revolve
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Celestial
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positioned in or relating to the sky
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Blue supergiant
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supergiant stars spectral type O or B
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Satellites
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artificial body placed in orbit around earth
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Galaxies
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clusters of billions of stars
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Red dwarf
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small, old, relatively cool star temperature of 2300C
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Black dwarf
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created when white dwarf becomes sufficiently cool. temperature of 20,000 C
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Red giant
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large star of high luminosity and low surface temperature of 5,000C
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White dwarf
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dense, small star that's typically the size of planet
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Accretion
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process of growth or increase
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Planets
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wide range of celestial bodies
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Terrestrial planets
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planet having compact rocky surface like Earth's
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Jovian planets
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any of the four outermost planets in the solar system, much larger than Earth
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