Sun

• Sun


  The center of the solar system and the largest object in it holding 99.8% of the total mass
• Sun

  • Giant ball of hot gas (73.4% hydrogen and 25% helium)
  • Yellow dwarf star that is 4.5 billion years old
  • Diameter of 1.39 km
• Sun's rotation


  Counterclockwise direction (25 days in its equator and closer to 35 days near the poles)
• Sun


  • Its gravity holds everything in our solar system in an orbit around it from the biggest planets to the smallest dust particles
• Sun


  • Produces a tremendous amount of energy that travels to Earth as light and heat, essential for life