Multiple choice

A star which appears blue is _____.

  1. hotter than the sun

  2. cooler than the sun

  3. as hot as sun

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blue stars are hotter than the sun, with surface temperatures exceeding 10,000 Kelvin compared to the sun's approximately 5,500 Kelvin. Star color indicates surface temperature: blue stars are hottest, followed by white, yellow, orange, and red stars as coolest.

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