1 / 7

The Sun

The Sun. Solar Facts. Our Sun is a star, just like all the other stars in the night sky The name of our star is “The Sun”, but also “Sol” Latin for sun is “solis”, Greek for sun is “helios” Holds the entire Solar System together by its immense gravity. Solar Facts.

lacota-santiago
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

  2. Solar Facts • Our Sun is a star, just like all the other stars in the night sky • The name of our star is “The Sun”, but also “Sol” • Latin for sun is “solis”, Greek for sun is “helios” • Holds the entire Solar System together by its immense gravity

  3. Solar Facts • Size: 1.4 million km. 110x Earth’s diameter. 1 million Earths could fit inside the Sun. • Temperature: Surface = 5,000° C (9,932° F), Inside = 15,000,000° C (27,000,000° F) • Mass: 99.8% of entire Solar System’s mass, gravity = 28x Earth’s. • Rotation (spinning): 25 days for equator to rotate, 27 days for poles to rotate • Revolution: Sun revolves around center of our Milky Way galaxy.

  4. Sun’s Interior • Photosphere • Chromosphere • Core • Corona • Sunspots • Prominences & Solar Flares Where is the . . . Convective Zone? Radiation Zone?

  5. Sun’s Atmosphere • Corona (“Crown”) • Outer atmosphere, normally not visible (except during full solar eclipse) • extends into space for millions of kilometers • Photosphere (photo = “light”) • Middle atmosphere, is visible • Considered the surface layer of the sun • Chromosphere (chromo = “color”) • Inner atmosphere, has a reddish color • Sometimes partially visible during a solar eclipse

  6. Sun’s Interior • Convection Zone • Outermost layer of interior • Gases move thru zone by convection currents (transfer of heat by fluid movement) • Radiation Zone • Middle layer of interior • Energy produced in core moves outward thru zone by radiation (transfer of heat by energy waves) • Core • Produces enormous amount of energy by nuclear fusion, fusing hydrogen atoms (H) into helium atoms (He) under intense pressure and heat

  7. Solar Features • Sunspots • Dark spots on the sun’s surface • Areas of gas that are cooler than surrounding gases • Prominences • Huge loops of gases linking sunspot regions • Solar Flares • Prominences sometimes connect, causing the sun’s surface gases to erupt far into space • Solar Wind • Charged particles streaming from the sun, increased during solar flares • Causes the planetary auroras, can interfere and damage electronic equipment

More Related