Nonetheless, it is considered a metal-rich star,[11] having a higher abundance of many elements with masses greater than helium as compared to the Sun.
The star is radiating 154% of the luminosity of the Sun from its photosphere at an effective temperature of 5,944 K.[6] The first exoplanet discovered (designated HD 82943 b) was announced in 2000 by a team of French astronomers led by Michel Mayor.
[14] Further radial velocity analysis hinted at either long-period stellar activity or presence of a third Jovian exoplanet with an orbital period of 1075 days.
Upon reaching a sufficient core temperature, young stars quickly burn through their initial allotment of lithium-6, whereas planets should retain their lithium-6.
[16] Thus the simplest and most convincing answer to explain this observation is that one or more planets, or at least planetary material, have fallen into the star sometime after it passed through its early evolutionary stage.