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Stars

Stars. Stars Star: a massive collection of gases that emits large amounts of light energy. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away. Stars

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Stars

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  1. Stars

  2. Stars Star: a massive collection of gases that emits large amounts of light energy

  3. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away

  4. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away -star distance is measured in light years

  5. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away -star distance is measured in light years light year (ly): the distance light travels in one year

  6. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away -star distance is measured in light years light year (ly): the distance light travels in one year 1 ly = 9,460,000,000,000 km

  7. Stars Star: a massive collection of gases that emits large amounts of light energy Proxima Centauri: the closest star from our solar system is 39,900,000,000,000 km away -star distance is measured in light years light year (ly): the distance light travels in one year 1 ly = 9,460,000,000,000 km this makes proximacentauri 4.22 ly away

  8. Stars Luminosity: the amount of energy released by a star each second

  9. Stars Luminosity: the amount of energy released by a star each second -the sun has a luminosity of 1

  10. Stars Luminosity: the amount of energy released by a star each second -the sun has a luminosity of 1 -other stars are ranked based on how many times brighter they are than the sun

  11. Stars Luminosity: the amount of energy released by a star each second -the sun has a luminosity of 1 -other stars are ranked based on how many times brighter they are than the sun e.g. Sirius has a luminosity of 22

  12. Stars Luminosity: the amount of energy released by a star each second -the sun has a luminosity of 1 -other stars are ranked based on how many times brighter they are than the sun e.g. Sirius has a luminosity of 22 -Sirius appears much smaller and less bright than the sun because it is much farther away

  13. Stars Apparent Magnitude: how bright a star is when viewed from Earth -depends on luminosity and distance

  14. Stars Apparent Magnitude: how bright a star is when viewed from Earth -depends on luminosity and distance Absolute Magnitude: how bright a star would be if it were 33 ly from Earth

  15. Stars Star Colour & Temperature: -reddish stars are cooler -bluish stars are hotter

  16. Stars Hertzsprung-Russell Diagram: arranges stars by temperature and brightness

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