sentence: Some spectroscopic binaries have an orbit that is edge-on to Earth.
sentences_after: When this happens, the stars will take turns passing in front of and eclipsing the partner star, in what is called an 'eclipsing binary'. In this case, the amount of light we see from the double dims slightly during the time one star is in front of the other.
concept_name: spectroscopic binary
headings: Binary star Eclipsing binaries