HD 290327

HD 290327 is a single star in the equatorial constellation of Orion. It has a yellow hue with an apparent visual magnitude of 8.99, which is too faint to be viewed with the naked eye. Parallax measurements provide a distance estimate of 184 light years from the Sun. It is drifting away with a radial velocity of +29.5 km/s, having come to within around a million years ago.
Kazanasmas (1973) found a stellar classification of G5IV for this object, matching a G-type star that is evolving along the subgiant branch. It was later given a class of G8V, suggesting it is instead a G-type main-sequence star. This object is nearly twelve billion years old and is spinning slowly with a projected rotational velocity of 1.4 km/s. The star has 86% of the mass of the Sun and 95% of the Sun's radius. It is radiating 75% of the luminosity of the Sun from its photosphere at an effective temperature of 5,525 K. The metallicity is sub-solar, meaning it has a lower abundance of elements other than hydrogen and helium compared to the Sun.
In 2009, a gas giant planet was found in orbit around the star. It is orbiting at a distance of around with a period of .