Spectroscopic Parallax: Definition & Uses


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question 1 of 3

This is a method that helps approximate the distance to a star using apparent and absolute magnitudes:

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1. The brightness of a star as it appears to us on Earth is known as:

2. The true brightness of a star is known as:

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About This Quiz & Worksheet

This quiz and worksheet combo will assess your ability to define spectroscopic parallax. You will be asked to distinguish between apparent magnitude and absolute magnitude, and to explain how these magnitudes can be used to calculate distance.

Quiz & Worksheet Goals

This assessment will test your comprehension of:

  • Spectroscopic parallax
  • The difference between absolute and apparent magnitude
  • Betelgeuse
  • The name of the formula for calculating a star's distance

Skills Practiced

This assessment will help you practice these skills:

  • Critical thinking - apply relevant concepts to examine information about space travel in a different light
  • Defining key concepts - ensure that you can accurately define Beletegeuse, magnitude-distance formula, and spectroscopic parallax
  • Distinguishing differences - compare and contrast apparent and absolute magnitude
  • Information recall - access the knowledge you've gained regarding stars

Additional Learning

Learn more about how to calculate the distance of a star from Earth in this interactive lesson Spectroscopic Parallax: Definition & Uses. This lesson covers:

  • Defining spectroscopic parallax
  • Identifying Betelgeuse
  • Explaining apparent and absolute magnitude
  • Defining the magnitude distance formula