HD 139139 (also known as EPIC 249706694) is likely part of a bound pair system of main sequence stars about 350 light-years (110 parsecs) away from Earth in the constellation Libra.

HD 139139 is a G-type main-sequence star, a little larger and more luminous than the Sun, and at an almost identical temperature.

It is about three magnitudes fainter and has a temperature of between 4,100 and 4,300 K.[7] Both stars have a similar proper motion, meaning they may form a gravitationally-bound binary pair.

The team estimated 4.8% probability of having missed all of them by chance, assuming that the frequency of the events remained unchanged from the 2017 measurements by Kepler.

[16] HD 139139 was identified as unusual by two independent groups of visual surveyors (citizen scientists) working in collaboration with professional astronomers.