Answers created by Sudeep D.

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• What are the basic characteristics of stellar orbits in the bulge, disk, and halo of our galaxy?
  
• What is he intergalactic star database?
  
• What are 6 stages of how a star forms?
  
• How does earth history differ from other planets in the solar system?
  
• What causes a red giant star's luminosity?
  
• Question #4310c
  
• How far apart are all of the galaxies in the Local Group?
  
• Question #3e803
  
• How big is the universe and how old?
  
• Question #f8a1b
  
• Question #b0927
  
• During which step in cosmic evolution were the chemical bases for life created?
  
• Toward which distant star does Uranus's axis of revolution point?
  
• Question #d21a9
  
• Are there gaps between Saturn's rings? What is the shortest gap? What is the longest?
  
• Where are main sequence stars located on the H-R diagram?
  
• How many stars in our galaxy are older than our sun? Younger?
  
• When did multicellular life begin to appear on earth?
  
• What are the major eras of earth's history?
  
• How long does it take for 55 Cancri e to rotate/revolve?
  
• What is the difference between a seyfert galaxy and a quasar?
  
• Which type of galaxy has stars that are symmetrically dispersed in a spherical or flattened shape?
  
• Is our solar system the only solar system within the Milky Way Galaxy?
  
• How hot was the Big Bang?
  
• The elliptical galaxies are most like what part of our Milky Way?