Introduction to the Universe: Our Location in Time & Space Quiz
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Questions and Answers

How many major galaxies are there in the Local Galactic Group?

  • Five major galaxies
  • Three major galaxies (correct)
  • Four major galaxies
  • Two major galaxies

    • Which organization in space contains between a few hundred thousand to a few million galaxies?

  • Galactic Clusters
  • Galactic Great Walls (correct)
  • Galactic Groups
  • Galactic Superclusters

    • How far is the Andromeda Galaxy from our Milky Way Galaxy?

  • Over two million light years (correct)
  • Less than one million light years
  • Around one hundred thousand light years
  • Exactly one million light years

    • What is the approximate diameter of the Milky Way Galaxy in light years?

    <p>One hundred thousand light years</p> Signup and view all the answers

    What is the main purpose of the Celestial Sphere in observational astronomy?

    <p>To provide a framework for locating astronomical objects</p> Signup and view all the answers

    Which pair of coordinates is used in the Horizon Coordinate System to label astronomical objects?

    <p>Altitude &amp; Azimuth</p> Signup and view all the answers

    What does an altitude of +90° signify in the Horizon Coordinate System?

    <p>It represents the zenith</p> Signup and view all the answers

    Why do lines of azimuth not remain parallel in the Horizon Coordinate System?

    <p>Because azimuth varies with geographic location</p> Signup and view all the answers

    What is the role of Celestial Meridian in observational astronomy?

    <p>To form a circle perpendicular to the horizon</p> Signup and view all the answers

    What critical factor influences Altitudes & Azimuths according to the text?

    <p>Observer's geographical location</p> Signup and view all the answers

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