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6th Chapter 3 astron

astronmey

TermDefinition
Visible Light Electromagnetic radition that can be seen with the uraided eye.
Electromagnetic Radition Energy that travels through space in the form of waves.
Wavelength The distance between the crest of one wave and the crest of the next
Spectrum The range of wavelengths of electromagentic waves
Constellation A patteren of stars in the sky
refracting Telescope A telescope that uses convex lenses to gather and focus light
Convex lens A peice of transparent glass curved so that the middle is thicker than the edge
Reflecting Telescope A telescope that uses one or more mirrors to gather light
Visible Light Electromagnetic radition that can be seen with the uraided eye.
Electromagnetic Radition Energy that travels through space in the form of waves.
Wavelength The distance between the crest of one wave and the crest of the next
Spectrum The range of wavelengths of electromagentic waves
Constellation A patteren of stars in the sky
refracting Telescope A telescope that uses convex lenses to gather and focus light
Convex lens A peice of transparent glass curved so that the middle is thicker than the edge
Parallax The apparent change in position of an object when seen from different places
Reflecting Telescope A telescope that uses one or more mirrors to gather light
Giant Star A very large star much larger than the sun
Radio Telescope A device used to device used to detect radio waves from objects in space
Observatory A building that contains one or more telescope
Giant Star A very large star much larger than the sun
Spectrograph An instrument that seperates light into colors and photographs the resulting spectrum
Apparent Magnitude The brightness of a star as seen from earth
Galaxy A giant structure that contains hundreds of billons of stars
Absoulte Magnitude The brightness of a star if it were a standard distance from earth
Universe All of space and everything in it
Hertzsprung-russel diagram A graph relating the temperature and brightness of stars
Light-Year The distance that light travels in one year
Parallax The apparent change in position of an object when seen from different places
Giant Star A very large star much larger than the sun
Apparent Magnitude The brightness of a star as seen from earth
Absoulte Magnitude The brightness of a star if it were a standard distance from earth
Main Sequence An area on Hertzspurg-Russell diagram that runs from the upper left to lower right and includes more than 90 percent of all stars
Pulsar A neutron star that produces radio waves
Nebula Alarge amount of gas and dust in space spread out in a immense volume
Prostar A contracting cloud of gas and dust the earliest stage of a star's life
White Dwarf The remaining hot core of a star after its a star after its outer layers have expanded and drifted out into space
Supernova The explosion of a dying giant or super giant star
Neutron Star A tiny star that remains explosion
Black Hole The remain of an extremely massive star pulled into a small volume by force of gravity
Quasar A distant galaxy with a black hole at its center
Binary Star A star system that contains two stars
Ecliipsing Binary A star system in which one star periodacally blocks the light from another
Spiral Galaxy A galaxy whose arms curve outward in a pinwheel patteren
Elliptical Galaxy A galaxy shaped like a flattered ball, Containg only old stars
Inregular Galaxy A galaxy that does not have a regular shape
Big BANG The intial explosion that resulted in the formation and expanision of the universe
Created by: aleesa1D