Explore Solar System Measurement in this free online astronomy course

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Certificate

Paid

Language

Level

Intermediate

Access

Free

Last updated on May 4, 2026 2:34 pm

Learn about the Solar System and the Earth’s movement around the Sun to be able to navigate using the stars in this free online astronomy course.

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Did you know that the Earth revolves around the Sun in an anti-clockwise direction? This course provides such interesting facts and delves deeper into astronomy and its rich history. We introduce you to the Solar System and examine the role of celestial poles in understanding solstices and equinoxes. We also show you how navigators use the position of planets, stars, moons, comets, meteors and asteroids to find their way.

What You Will Learn In This Free Course

  • Explain the concepts of the celestia…
  • Compare the perihelion and aphelion…
  • Analyze the sidereal hour angle (SHA…
  • Describe twilight and the Earth-Moon…
  • Explain the concepts of the celestial pole, solstices and equinoxes
  • Compare the perihelion and aphelion
  • Analyze the sidereal hour angle (SHA) and declination of bodies
  • Describe twilight and the Earth-Moon system
  • Unpack eclipses and the conditions required for them to occur
  • Lay out the angular measures of GHA, LHA and SHA
  • Demonstrate how the right ascension is measured in units of time
  • Discuss the rational horizon, zenith and nadir
  • Apply elevated pole and depressed pole calculations
  • Understand true altitude, azimuth and true zenith distance
  • Solar System

    This module will teach you about the solar system, celestial pole, perihelion and aphelion, as well as Kepler’s laws of planetary. In this module, you will learn about the solstices and equinoxes, earth, d v corrections, twilight, as well as the moon system, solar and lunar eclipses.

    Hour Angle and Horizon System of Coordinates

    This module will teach you about the hour angle, GHA, LHA, and SHA, right ascension, as well as the daily motion and horizon system coordinates. In this module, you will learn about the rational horizon, zenith, nadir, the verticle circle, as well as the elevated pole and depressed pole.

    Course assessment

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      Explore Solar System Measurement in this free online astronomy course
      Explore Solar System Measurement in this free online astronomy course
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