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Spectroscopes,Suns,Comets And AUs

Published on Dec 02, 2015

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PRESENTATION OUTLINE

1.

SUNS

  • A sun is a star that has planets
  • orbiting it. Suns revolve around
  • the centers of their galaxies.They
  • also rotate like a planet.Suns are hot
  • of course and mostly consist of plasma.
Photo by Skiwalker79
2.

SUNS CONTINUED

  • Their surface consists of filament.
  • The atmosphere is hot and explosive.
  • Our sun is relatively cold compared to
  • others.Suns are categorized by brightness
  • and color.The color is caused by temperature.
Photo by ecstaticist
3.

COMETS

  • Comets are relatively ice
  • Comets atmosphere-coma
  • Comets orbit the sun
  • "Dirty snowballs"
  • 200 years to orbit the sun
Photo by Dolor Ipsum
4.

ASTRONOMICAL UNITS

  • The distance between earth to sun
  • 149,598,000 kilometers
  • Used to abbreviate huge amounts in astronomy
  • Au time: 1 day of 86400 seconds
  • Light year: 63,241 AUs
Photo by Leo Reynolds
5.

SPECTROSCOPES

  • First invented by Joseph Von Frankhofer in 1814
  • Splits light into wavelengths
  • Scientists can find elements inside stars.
  • Splits light using a prism or diffraction grating
  • Diffraction grating consists of many parallel slits
Photo by El Bibliomata
6.

SPECTROSCOPES CONT.

  • Diffraction grating allows for measurement of wavelengths
  • Can also be used in gemology and chemistry
  • Infrared spectroscopes can detect distant stars
Photo by lucijan_blagonic

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