1 / 15

The Sun

The Sun. By: Sam Belanger. What is it?. The sun is G2 star Closest star to Earth Contains: hydrogen 70%, 28% helium, metals and other materials 2% Largest object in our solar system Contains 99.8% of the solar systems total mass Cant live without it Estimated 4.5 billion years old.

gwidon
Download Presentation

The Sun

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Sun By: Sam Belanger

  2. What is it? • The sun is G2 star • Closest star to Earth • Contains: hydrogen 70%, 28% helium, metals and other materials 2% • Largest object in our solar system • Contains 99.8% of the solar systems total mass • Cant live without it • Estimated 4.5 billion years old

  3. Sun Materials

  4. Characteristics • Diameter: 1,390,000 km( 109 times the earth) • Mass: 1.989e30 kg • Temperature: about 27 million degrees Fahrenheit • 93 million miles away from earth • So large that its gravity is able to hold all of the planets in orbit

  5. Purpose • The sun is necessary for our survival • The light from the sun heats our planet and makes life possible • Eventually in an estimated 5 billion years, the sun will evolve into a red giant star and will no longer heat the earth • Gets its energy from a process called nuclear fusion

  6. Layers • Photosphere: visible surface of the sun that is about 600 km thick • Chromosphere: thin region below the corona, about 3,000 km thick • Corona: forms the sun’s outer atmosphere, and can extend outward a distance equal to 10-12 times the diameter of the sun • Core: the center of the sun, where the energy is produced-temperature around 15,000,000 degrees Celsius

  7. Solar Flares • A solar flare is a basically a huge explosion on the sun • Flares occur when intense magnetic fields on the sun become too tangled • They emit huge bursts of electromagnetic radiation including x rays, ultraviolet radiation, visible light, and radio waves • A sunspot, or a cooler, dark spot on the sun can also appear

  8. Solar Eclipse • Sometimes the moon comes between the Earth and the sun • This event is called a solar eclipse • If the moon is partially over the sun its known as a partial eclipse, or if its completely blocked, a total eclipse • Happen usually once or twice a year • Can be harmful if looked at

  9. Cool Facts • 1 million earths could fit in the sun • The sun’s core is 150 times denser than that of water • The sun is one of about 2 billion stars in the Milky Way galaxy • The suns energy is about 386 billion billion megawatts • A man weighing 60 kg on earth would weigh 1680 kg on the sun • Einstein’s equation E=MC^2 changed ideas about the sun’s energy source by equating mass and energy

  10. Resources • http://www.windows2universe.org/sun/sun.html • http://nineplanets.org/sol.html • http://free.co.uk//sunsets/Landscapes-Road-to-the-Sun/ • Science text book • http://curious.astro.cornell.edu/images/xraysun.gif • http://cosmicpsychic.com/wp-content/uploads/2010/06/TotalSolarEclipse.jpg • http://www.barewalls.com/i/c/602106_Gacrux-the-prominent-red-giant-star-located-in-the-constellation-Crux.jpg • http://www.newscientist.com/data/images/ns/cms/dn9824/dn9824-1_831.jpg

More Related