Astronomy Quiz: Galaxies, Solar System Formation, and Light Years
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Questions and Answers

What is the approximate diameter of the Milky Way Galaxy?

  • 50,000 light-years
  • 30,000 light-years
  • 80,000 light-years (correct)
  • 100,000 light-years

    • Which of the following is the largest in distance?

  • 1 light year (correct)
  • Size of a typical galaxy
  • Distance to the nearest star (other than our sun)
  • 1 Astronomical unit

    • On the Cosmic Calendar, when did the solar system begin to form?

  • January 1
  • December 31
  • September 1 (correct)
  • April 1

    • What is an Astronomical Unit (AU)?

    <p>The average distance between the Sun and the Earth</p> Signup and view all the answers

    Which of these objects is furthest from the Sun?

    <p>A comet in the Oort cloud</p> Signup and view all the answers

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