Multiple Choice
You discover a binary star system in which star A has a velocity of 10 km/s and star B has a velocity of 30 km/s.If you study the system further and find out that the orbital period is 30 days and the orbital separation is a constant 0.3 AU,then what are the masses of stars A and B?
A) Star A is 3M☉,and Star B is 1M☉.
B) Star A is 1M☉,and Star B is 0.3M☉.
C) Star A is 6M☉,and Star B is 2M☉.
D) Star A is 2M☉,and Star B is 0.5M☉.
E) Star A is 0.3M☉,and Star B is 1M☉.
Correct Answer:

Verified
Correct Answer:
Verified
Q6: A star classified as a K0III star
Q17: If a star's distance is 10 pc,
Q22: How is the distance to a star
Q41: What is the main property of a
Q45: In which region of an H-R diagram
Q54: What is the spectral type of stars
Q73: Stars X and Y are 5 AU
Q76: Stars A and B appear equally bright,
Q81: What is the physical difference between an
Q83: Star A is a red star. Star