Multiple choice general knowledge science & technology

What is the brightness scale of stars called?

  1. Density

  2. Albedo

  3. Magnitude

  4. Temperature
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C Correct answer
Explanation

The magnitude scale is the astronomical brightness scale for stars, where lower numbers indicate brighter objects. Apparent magnitude measures brightness as seen from Earth, while absolute magnitude measures intrinsic brightness. Density is mass per volume, albedo is reflectivity, and temperature measures thermal energy - none of these are brightness scales.

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