HD 87822 is a G-type main-sequence star located approximately 180 light-years away in the constellation Hydra. It is slightly more massive and luminous than the Sun and has a spectral type of G0V. The star is cataloged in the Henry Draper Catalogue, a widely recognized astronomical catalog.
Planetary System: In 2009, a substellar companion, an exoplanet designated HD 87822 b, was discovered orbiting the star. This exoplanet is a gas giant with a minimum mass several times that of Jupiter. It orbits its host star at an average distance of about 1.7 AU (Astronomical Units), completing an orbit approximately every 260 days. The discovery of HD 87822 b was made using the radial velocity method, which detects the subtle wobble of a star caused by the gravitational pull of an orbiting planet.
Nomenclature:
- HD 87822: Its designation in the Henry Draper Catalogue.
- HIP 49540: Its designation in the Hipparcos Catalogue.