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STARS

COVERT - Stars, Galaxies, Universe, Our Sun

TermDefinition
The Sun Made of gas; held together by gravity, rotating star
The Core Center of the sun, where light energy is produced
The Radiative Zone The area outside of the core where energy moves from core to convective zone
The Convective Zone The area where energy currents of hot gas from the core rise and fall
The Photosphere The thin outer surface of the convective zone
The Chromosphere The violent motion of hot gases on the surface of the sun produces a reddish rim during solar eclipses
The Corona (crown) The light energy extending outward from the sun in the form of solar wind
Solar Flare Extremely hot bright regions on the sun's surface sending out streams of electrical particles (affect radio and television transmissions)
CME's (solar prominences) Coronal Mass Ejections (immense cloud of magnetic particle plasma) shoot out and cause static and GPS distortion
Galaxy an interstellar gas and dust gravitationally bound system of stars: Spiral "$", Elliptical "0", or Irregular "&" formations
Universe huge wide open space holding everything from the smallest particle to the biggest galaxy
The Solar System The region of the universe near the sun that includes the sun, the nine known major planets and their moons or satellites, and objects such as asteroids and comets that travel in independent orbits
Star An incandescent celestial body of a fixed point in the universe *like the Sun
Protostar 1st stage star ball of gas and dust
Main Sequence 2nd stage, longest stage of star development where nuclear fusion is initiated
Blue Giant Largest amount of matter from Protostar forms a giant star that expands burning hot, fast and dies fast in an explosion
Red Giant 3rd stage of huge expansion and cooling
White Dwarf 4th and final stage, formation into an average star
Brown Dwarf a "failed star" that never developed into a star. Too large to be a planet yet too small to be a star.
Supernova Large Explosion at the end of a stars life cycle
Neutron Star smallest and most dense star, however, can have a mass twice that of the sun, often results from a gravitational collapse of a massive star (supernova)
Pulsar highly magnetized rotating neutron star emitting a beam of electromagnetic radiation
Black Hole Place in space where gravity pulls in all matter nearby and nothing gets out
Binary Star 2 stars orbiting a common center of mass, Brightest is classified as the primary star and dimmer one is secondary
Constellation a group of stars forming a (largely arbitrary) recognizable pattern
Open cluster group of 100 to 1000 stars, may contain bright blue stars
Globular Cluster up to 1 million stars packed closely together resembling a ball, frequently found orbiting spiral galaxies
Nebula Large cloud of gas and dust in intersteller space
Quasar Quasi stellar radio source of star- like light, very distant like looking back in time, made by strongest energy source in the universe
Created by: MrsCovert
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