Multiple Choice
What can we learn about a star from a life track on an H-R diagram?
A) the star's age
B) the surface temperature and luminosity the star will have at each stage of its life
C) the star's current stage of life
D) how the star's distance from Earth varies at different times in its life
Correct Answer:
Verified
Correct Answer:
Verified
Q43: What is a protostar?<br>A)a star that has
Q44: About how many times more luminous than
Q45: Which of the following statements is probably
Q46: What species absorbs photons in a protostar's
Q47: Explain why stars form only in molecular
Q49: According to current understanding,how did the first
Q50: What happens to the surface temperature and
Q51: Which of the following phenomena is not
Q52: Explain how gas in a protostellar disk
Q53: Which of the following discoveries,if they existed,would