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Author Question: The brightest main-sequence star in a cluster has a temperature of 10,000 K and a luminosity about ... (Read 87 times)

fagboi

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on: Jul 27, 2018
The brightest main-sequence star in a cluster has a temperature of 10,000 K and a luminosity about 100 times greater than the sun. What is the approximate age of the cluster?
 
  A) About 1011 years B) About 107 years
  C) About 109 years D) This cannot be answered using the HR diagram.

Question 2

The names of the seven days of the week are derived from the names of the members of the solar system that are visible to the naked eye.
 
  Indicate whether the statement is true or false


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billybob123

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Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


fagboi

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Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)

samiel-sayed

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Reply 3 on: Yesterday
Excellent

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