Astronomy 4.1 Energy formation and layers of the Sun - IT6230

Astronomy 4.1 Energy formation and layers of the Sun - IT6230

• 1.
  Unit 4.1 The Sun Basic Sun Information Energy Formation
• 2.
  Basic Sun Information The planets relative to each other!
• 3.
  Basic Sun Information Sun relative to the planets!
• 4.
  Basic Sun Information The sun relative to other stars!
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  Fun Sun Data *All data is approximate Diameter 1,391,940km Circumference 4,379,000 Mass 1.989 x 1030 kg Temp. at Core 15,600,000 K ≈ 15599727 °C Temp. at Surface 6400 K ≈ 6127 °C
• 6.
  Basic Sun Information •The Sun is an average sized star. It looks very big from earth because it is so close to us! • Why do we study the sun? – Sun is very important to earth – without its heat and light, we would not be able to survive! – Gives us the Seasons – Its gravity keeps us, and the other planets, in orbit – It is the nearest star to us! We study it to learn about other stars. – It provides earth with A LOT of energy! – Changes in solar activity or surface features effect our climate, atmosphere, weather & power transmissions!
• 7.
  Basic Sun Information •Sun is “relatively” stationary, at the center of our Solar System – The Milky Way revolves as a whole, but relative to earth the sun is stationary! – It does rotate around itself. The center latitudes take 25 days to rotate, while areas near the poles take 35 days to rotate.
• 8.
  Basic Sun Information •The Sun is located on one of the arms of our Milky Way Galaxy
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  Basic Sun Information •Sun is made of 73% Hydrogen, 25% Helium and 2 % other elements. – Those other elements consist of 70 different elements! • Some of these elements are….. – Oxygen, Carbon, Nitrogen, Silicon, Magnesium, Neon, Iron, Sulfur
• 10.
  Basic Sun Information •The sun is surrounded by a large magnetic field, which causes most of the activity and features on the sun. – A magnetic field is the area sounding an object that displays magnetism, or forces of attraction and repulsion • Because of the uneven rotation of the sun, every 11 years the suns magnetic field flips.
• 11.
  • This meansthe solar cycle is 22 years, because it takes that long for the magnetic field to flip-flop back to where it began!
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  Citations • "Funny Videos, Images, Jokes and Funny Stuff - Fun Mint." Planet Sizes. N.p., n.d. Web. 13 July 2012. <http://www.funmint.com/planet-sizes-comparison-images-and- video/>. • Smith, Gene. "University of California, San DiegoCenter for Astrophysics & Space Sciences." The Milky Way Galaxy. Universit of California, San Diego, n.d. Web. 8 Apr. 1999. <http://cass.ucsd.edu/archive/public/tutorial/MW.html>. • "The Scientific Gamer." The Scientific Gamer. N.p., 25 May 2012. Web. 13 July 2012. <http://scientificgamer.wordpress.com/ 2012/05/25/how-is- sunspot-formed/>.