Which is NOT a true binary system?
A) optical double
B) visual binary
C) spectroscopic binary
D) eclipsing binary

Question

Quizplus · Accepted Answer

An optical double is a pair of stars that appear close to each other in the sky but are not physically associated, meaning they do not orbit around a common center of mass. Visual, spectroscopic, and eclipsing binaries, on the other hand, are all true binary systems that consist of two stars orbiting around their common center of mass.

Which Is NOT a True Binary System