The exoplanet was found by using the radial velocity method, from radial-velocity measurements via observation of Doppler shifts in the spectrum of the planet's parent star.

In comparison, the Sun is 4.6 billion years old[4] and has a surface temperature of 5778 K.[5] The star's apparent magnitude, or how bright it appears from Earth's perspective, is 5.47.

Hypothetically, large enough moons, with a sufficient atmosphere and pressure, may be able to support liquid water and potentially life.

[12] One way to decrease loss from sputtering is for the moon to have a strong magnetic field that can deflect stellar wind and radiation belts.

[1] In the Halo video game series, Eayn, a fictional moon of HD 69830 d, is the homeworld of the Kig-Yar species, a member of the enemy Covenant.