HD 170469

HD 170469 is a G-type main-sequence star located approximately 284 light-years away in the constellation Lyra. Its spectral type is G5V, indicating a star similar to our Sun but slightly cooler and less massive.

Stellar Properties:

HD 170469 possesses a mass and radius that are close to, but somewhat smaller than, the Sun. Its effective temperature is estimated to be around 5,700 Kelvin, giving it a yellowish hue. The star's age is estimated to be several billion years. HD 170469 is considered relatively metal-rich, meaning it has a higher proportion of elements heavier than hydrogen and helium compared to the Sun. This metallicity can influence the formation and evolution of planetary systems around the star.

Planetary System:

In 2007, a planet was discovered orbiting HD 170469. This exoplanet, designated HD 170469 b, is a gas giant with a mass several times that of Jupiter. It orbits the star at a distance of roughly 2.2 astronomical units (AU) with a period of about 1280 days. The radial velocity method was used to detect the planet, measuring the slight wobble in the star's motion caused by the planet's gravitational pull.

Significance:

HD 170469 is of interest to astronomers because its planetary system provides insights into the formation and evolution of gas giant planets around Sun-like stars. Studying the characteristics of HD 170469 and its planet helps to expand our understanding of the diversity of planetary systems beyond our own. Continued observations of this system may reveal additional planets or other features that further contribute to our knowledge of exoplanetary systems.