For the most recent study, the researchers joined TTV data with a radial velocity analysis of the star.

This “radial velocity” technique has already been used to detect dozens of exoplanets with hundreds more awaiting confirmation.

Researchers made this estimation using the aforementioned radial velocity technique.

For a small subset, about 7.2 million stars, Gaia has calculated their radial velocity - their movement towards or away from us.

“We are continuing to monitor the star with precise radial velocity measurements, so stay tuned.”