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23 Cards in this Set
- Front
- Back
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Energy that can travel through space in the forms of waves
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Electromagnet waves
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The light you can see
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Visible light
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The distance between crest to crest in a wave
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Wavelength
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Light that spreads out in different colors if you shine it through a prism
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Spectrum
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Instruments that collect and focus light and other forms of electromagnet radiation.
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Telescope
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A telescope that uses lenses or mirrors to collect and focus light
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Optical Telescope
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a telescope that uses convex lenses to gather and focus light.
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Refracting Telescope
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A piece of glass were the middle is thicker then the edges
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Convex Lens
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A telescope that uses a curved mirror to collect and focus light
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Reflecting Telescope
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A building that contains one or more telescopes
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Observatory
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Detect radio waves from objects in space
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Radio Telescopes
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A device that breaks light into color
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Spectrograph
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Brightness as seen from Earth
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Apparent Brightness
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The stars brightness if it were standard distance from Earth
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Absolute Brightness
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Graph that is used to determine Color, Brightness, and Temp.
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Hertzsprung-Russell Diagram
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The diagonal area in the H-R diagram
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Main Sequence
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A large cloud of gas and dust spread over a immense volume
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Nebula
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A contracting cloud of gas with enough mass to form a star
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Protostar
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The blue-white core of the star left behind cools and becomes
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White Dwarf
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The explosion of a super-giant star
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Supernova
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Remains of high-mass stars
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Neutron Stars
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Spinning neutron stars
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Pulsars
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An object with gravity so strong nothing, not even light can escape it.
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Black Hole
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