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If a 1 M ⊙\odot Protostar Starts Out on the Hayashi Track with a on the Hayashi

Question 22

Multiple Choice

If a 1 M ⊙\odot protostar starts out on the Hayashi track with a temperature of 3300 K and a luminosity of 320 L ⊙\odot , what is its approximate radius?


A) 25 R ⊙\odot
B) 55 R ⊙\odot
C) 75 R ⊙\odot
D) 105 R ⊙\odot
E) 125 R ⊙\odot

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