[5] It has a yellow-orange hue with an apparent visual magnitude of 8.30,[2] which is too faint to be seen with the naked eye but can be viewed with a small telescope.
The star is located at a distance of 132 light years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −27.5 km/s.
[2] The stellar classification of HD 147018 is G8/K0V[3] or G9V,[4] matching a late G-type main-sequence star that is generating energy through core hydrogen fusion.
It is roughly six billion years old and is spinning with a projected rotational velocity of 1.56 km/s.
The planets were found using the radial velocity method, using the CORALIE spectrograph at La Silla Observatory, Chile.