Question

question 18 1 pts a binary star system that is detected from the drop in luminosity as one star passes in front of the other is called __________. visual eclipsing spectroscopic

Explanation:

An eclipsing binary star system is identified by the decrease in luminosity when one star passes in front of the other. Visual binaries are detected by seeing two stars; spectroscopic binaries by analyzing spectra.

Answer:

B. eclipsing