5.10.2 The Distance Modulus Formula

Question 1

distance modulus

Answer 1

• The variables in the distance modulus formula are:
  • M, for magnitude, which uses a star’s brightness as measured by the observer to calculate its distance from the observer.
  • r, the star’s distance measured in parsecs, a value equal to approximately 3.3 light years.
  • The distance modulus formula is used to calculate high distances.