Site Search




Course Navigation

Home| Course Catalog| Career Planning

Free Online Course on World Geography, Weather, Climate & Regions

Lesson 3: Our Planet: The earth and the universe—where do we fit in?

Our solar system


The Sun

SOHO Image of the sun, taken September 14, 1999. Photo courtesy of European Space Agency, NASA, and the Solar and Heliospheric Observatory. http://photojournal.jpl.nasa.gov/catalog/PIA03149

The sun is the center of our solar system and the planets all orbit around it. The sun makes up 99.85 percent of the mass in our solar system! This means that if you put all the other planets, including the earth, along with the moons, meteorites, asteroids, and other celestial material together, it would make up less than 1 percent of all the mass of the solar system. Compared to everything else in our solar system, the sun is huge, but in the Milky Way galaxy it is only one medium-sized star. The sun is made of burning gases.

Things to remember about the sun:

  1. The sun is the center of our solar system.
  2. The sun includes almost all of the mass in our solar system.
  3. The sun is a medium-sized star.
  4. The sun is made of gas.

     

  This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
For more information about this and other OCW projects at BYU, visit http://ocw.byu.edu.
Creative Commons License

Our Network Of Sites:
Apply 4 Admissions.com              | A2ZColleges.com  | OpenLearningWorld.com  | Totaram.com
Anatomy Colleges.com                | Anesthesiology Schools.com  | Architecture Colleges.com | Audiology Schools.com
Cardiology Colleges.com            | Computer Science Colleges.com| Computer Science Schools.com| Dermatology Schools.com
Epidemiology Schools.com         | Gastroenterology Schools.com  | Hematology Schools.com     | Immunology Schools.com
IT Colleges.com                | Kinesiology Schools.com  | Language Colleges.com  | Music Colleges.com
Nephrology Schools.com             | Neurology Schools.com  | Neurosurgery Schools.com | Obstetrics Schools.com
Oncology Schools.com    | Ophthalmology Schools.com | Orthopedics Schools.com       | Osteopathy Schools.com
Otolaryngology Schools.com| Pathology Schools.com  | Pediatrics Schools.com  | Physical Therapy Colleges.com
Plastic Surgery Schools.com| Podiatry Schools.com  | Psychiatry Schools.com   | Pulmonary Schools.com 
Radiology Schools.com| Sports Medicine Schools.com| Surgery Schools.com | Toxicology Schools.com
US Law Colleges.com| US Med Schools.com | US Dental Schools.com

About Us Terms of Use | Contact Us | Partner with Us | Press Release | Sitemap | Disclaimer | Privacy Policy


©1999-2011 OpenLearningWorld . com - All Rights Reserved