The Equatorial Coordinate System


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question 1 of 3

The sun's position in the sky on the first day of spring is called the:

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1. The angular distance measured starting at the vernal equinox, and from there, eastwards along the celestial equator to a point on the celestial equator underneath the celestial object's position, is called the:

2. The angular distance of an object in the sky north or south of the celestial equator is called the:

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About This Quiz & Worksheet

To pass this quiz, you should understand how the equatorial coordinate system is used and key phrases related to it.

Quiz & Worksheet Goals

Vocabulary terms and phrases that students should be familiar with include:

  • Right ascension
  • Diurnal equinox
  • Vernal equinox
  • Fall equinox
  • Declination
  • Latitude and longitude

Skills Practiced

You'll use using the following skills:

  • Making connections - link your understanding of the vernal equinox and the celestial equator
  • Information recall - use the knowledge you have gained to determine the name of the coordinate system used to locate celestial bodies
  • Knowledge application - use your knowledge of declination to identify how it is measured

Additional Learning

The Equatorial Coordinate System lesson can answer any further questions you might have about this topic. You'll study:

  • Locating points in the sky
  • Differences between the equatorial coordinate system and the horizon system
  • Importance of the celestial equator