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6th Chapter 3 astron
astronmey
| Term | Definition |
|---|---|
| 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
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