Astronomy Quiz: Our Place in the Cosmos
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Questions and Answers

What is the average distance from the Earth to the Sun?

  • 1 million kilometres
  • 1 Astronomical Unit (AU) (correct)
  • 1 arc second
  • 1 light year

    • How long ago did the Big Bang occur (i.e., how old is the Universe)?

  • 100 light years
  • 10,000 years
  • 4.5 billion years
  • 13.7 billion years (correct)

    • What is the ecliptic?

  • The dividing line between the northern and southern celestial hemispheres.
  • The projection of Earth's orbit around the Sun onto the celestial sphere. (correct)
  • The apparent path of the Moon around the sky.
  • The line passing through the sky which cuts through the celestial poles and zenith.

    • Relative to the stars, how much does the Moon move eastward in the sky each day as seen from Earth?

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    6.01

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    Study Notes

    Astronomy Basics

    • The average distance from the Earth to the Sun is approximately 93 million miles or 149.6 million kilometers.
    • The Big Bang, which marks the origin of the Universe, is estimated to have occurred around 13.8 billion years ago.
    • The ecliptic refers to the plane of the Earth's orbit around the Sun.
    • The Moon moves eastward about 6.01 degrees relative to the stars in the sky each day as seen from Earth.

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    Test your knowledge of astronomy with questions about the average distance from the Earth to the Sun, the age of the Universe, and more. See how well you know our place in the cosmos!

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