Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-astronomy-2de434dda477

What does a star's color tell astronomers?

Its temperature.

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  1. Its distance from Earth
  2. Its age in days
  3. Its temperature ✔

Why: Blue stars are hotter and red stars are cooler. Color reveals a star's surface temperature.

Huh, didn't know that: Blue stars are hotter and red stars are cooler. Color reveals a star's surface temperature.

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References

Answer: Its temperature. Blue stars are hotter and red stars are cooler. Color reveals a star's surface temperature.

  1. Scouting America: Astronomy www.scouting.org/merit-badges/astronomy
    Identify at least one red star, one blue star, and one yellow star (other than the Sun). Explain the meaning of these colors.
    Checked 2026-11-07.

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