TIC 168789840

[6][4] Three pairs of binary stars circle a common barycenter.

It is approximately 1,900 light-years (584 pc) from Earth, in the constellation Eridanus, west of the river asterism's sharpest bend, Upsilon2 Eridani, often called Theemin.

[8] To be seen the group needs strong magnification from Earth as is much fainter than red clump giant star Theemin and is about nine times further away.

Two sets of the binaries co-orbit relatively closely, while the third pair of stars takes 2,000 years to orbit the entire system barycenter.

[4] According to Jeanette Kazmierczak of NASA's Goddard Space Flight Center: The primary stars of all three close binaries are slightly hotter and brighter than the Sun,[7] while the secondary stars are much cooler and dimmer.

Astronomers used the orbiting TESS telescope to determine TIC 168789840 was lined up so all six stars' eclipses could be observed.
A light curve for TIC 168789840, plotted from TESS data [ 9 ]