Exam-style question
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When is it more appropriate to use absolute magnitude instead of apparent magnitude?.
- A.When comparing stars at different distances
- B.When observing stars from a telescope
- C.When measuring the brightness of a star in a binary system
- D.When calculating the distance to a star
Model answer
What a good answer should say
- When comparing stars at different distances
Explanation
Why this works
Absolute magnitude is more appropriate when comparing the intrinsic brightness of stars at different distances, as it provides a standard measure that eliminates the effects of distance on brightness perception.
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