Aha Trivia Stuff Everyone Should Know
Aha Trivia: Stuff Everyone Should Know · ahatrivia.com/mb-astronomy-36ba7affad59

Which is an example of a blue star?

Rigel.

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  1. Rigel ✔
  2. Betelgeuse
  3. The Sun

Why: Rigel is a blue star, showing a hot surface temperature compared with cooler red stars like Betelgeuse.

Huh, didn't know that: Rigel is a blue star, showing a hot surface temperature compared with cooler red stars like Betelgeuse.

The dad joke
Rigel is feeling blue in a good way!
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References

Answer: Rigel. Rigel is a blue star, showing a hot surface temperature compared with cooler red stars like Betelgeuse.

  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).
    Checked 2026-11-07.

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