Multiple Choice
Which of the following could be a stable planetary orbit in a binary system?
A) a large orbit around both stars in a wide binary system
B) an orbit close to one of the stars in a wide binary system
C) a "figure-of-eight" orbit about both stars in a close binary system
D) an orbit close to one of the stars in a close binary system
Correct Answer:
Verified
Correct Answer:
Verified
Q9: For the transit of an extrasolar planet
Q10: At the top of the Hertzprung-Russell diagram
Q11: Compared to the planets in our own
Q12: O-type stars in our galaxy are<br>A) very
Q13: Stars spend most of their lives<br>A) fusing
Q15: Red giants<br>A) are mature stars that are
Q16: Why is it better to search for
Q17: When Mercury or Venus passes in front
Q18: High mass stars are much less common
Q19: The habitable zones for stars may be