Four Different Main-Sequence Stars Are Colored Blue, Orange, Red, and Yellow

question 5

Multiple Choice

Four different main-sequence stars are colored blue, orange, red, and yellow. What is their rank from coolest to hottest?

• A) orange, blue, yellow, red
• B) red, orange, yellow, blue
• C) red, yellow, orange, blue
• D) blue, yellow, orange, red

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