Star Types

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Star Types
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Classification

• Stars are classified by temperature
• We see temperature as different colored stars
• Blue starshottest
• Red starscoldest

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Magnitude

• Magnitude how bright one star is compared to
  another
• Positive numbersdimmer stars
• Negative numbersbrighter stars

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Star Types

• Nebula- where stars are born.
• Made out of gas and dust
• Pulsars Stars that emit bursts of energy

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Star Types

• Red Supergiant-largest, most massive, and
  brightest kind of star in the universe
• Binary stars-twin stars that orbit each other

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Star types

• Dwarf Starrelatively small stars (types black,
  brown, red, yellow, white)
• Our sun is a yellow dwarf
• White dwarf- a star that is dying
• Black dwarf- a star with no more heat (cant see)
• Alpha centauriour closest star!
• 4.37 light years away

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Star Types

• Nova-A white dwarf star that suddenly looks very
  bright in the sky, lasts a few days, then returns
  to normal
• Hydrogen trapped on the surface of the star burns
  off
• May repeat this process over many years
• Supernova-An exploding supergiant, which may form
  either a neutron star or a black hole

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Star Types

• Neutron star- The tiniest type of star, made
  after a supernova collapses
• Extremely dense
• Black hole-the remains of a collapsed supernova
  that has such great gravity, light cant escape