Measuring The Distance to a Star


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If a star has a parallax of 0.5, how far away is it in light years?

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1. If a star has a parallax of 0.3, how far away is it in light years?

2. A stellar parallax (p) is a term for the deviation of a star measured across ____ AU:

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About This Quiz & Worksheet

Check your comprehension of terms related to triangulation and astronomy with this worksheet and quiz. Then you'll have to calculate the distance to particular stars in light years based on parallax.

Quiz & Worksheet Goals

With these assessments, students will have to define and apply:

  • Stellar parallax
  • Parsec
  • AU

Skills Practiced

This quiz and worksheet test you on the following skills:

  • Defining key concepts - ensure that you can accurately define main phrases, such as parsec and AU
  • Information recall - access the knowledge you've gained regarding stellar parallax
  • Problem solving - use acquired knowledge to solve distance practice problems

Additional Learning

To find out more about this subject, watch the related video lesson on Measuring the Distance to a Star. The lesson covers topics that include:

  • Surveyors' use of trigonometry to solve distance
  • Definition of triangulation and its relation to astronomy
  • Diameter of earth's orbit and how it is used to determine distance