HD_168443
HD 168443
Star in the constellation Serpens
HD 168443 is an ordinary yellow-hued star in the Serpens Cauda segment of the equatorial constellation of Serpens. It is known to have two substellar companions. With an apparent visual magnitude of 6.92,[2] the star lies just below the nominal lower brightness limit of visibility to the normal human eye. This system is located at a distance of 127 light years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −48.7 km/s.[2]
This stellar object is a core hydrogen fusing G-type main-sequence star with a classification of G6V, although it is likely evolved[4] with an age of around 11 billion years.[2] It is slightly lower in mass than the Sun but has a radius that is larger by 51%. The star is spinning with a leisurely projected rotational velocity of 2.2 km/s[4] and it has a very inactive chromosphere.[3][4] It is radiating 2.4[5] times the luminosity of the Sun from its photosphere at an effective temperature of 5,491 K.[4]