Which of These Statements Is NOT True About the Center

question 126

Multiple Choice

Which of these statements is NOT true about the center of mass of a binary star system?

• A) The center of mass is always on the line joining the two stars.
• B) The center of mass is simultaneously a focus of the ellipse of each star's motion.
• C) The center of mass is always more distant from the more massive star.
• D) The center of mass can move with respect to the more distant background stars.