Which type of binary system have pairs of stars that are so close together that they look like one single point?
A) radio binary
B) eclipsing binary
C) visual binary
D) spectroscopic binary
E) neutron star binary

Question

Quizplus · Accepted Answer

Spectroscopic binaries are pairs of stars that are so close together that they appear as a single point of light to an observer. The binary nature of these systems is revealed through spectroscopy, where the Doppler shifts of their spectral lines as they orbit around their common center of mass indicate the presence of two stars.

Which Type of Binary System Have Pairs of Stars That