HD 93083

This is a K-type main-sequence star that has been assigned a stellar classification of K2IV-V or K3V, depending on the study. It is smaller and less massive than the Sun, with a higher metallicity, or abundance of elements heavier than helium. The star is roughly six billion years old with a low projected rotational velocity of 2.2 km/s, and has an expected main sequence lifetime of 20.4 billion years. It is a source of X-ray emission with a luminosity of 7.9×10²⁶ erg s⁻¹. The star is radiating around 41% of the luminosity of the Sun from its photosphere at an effective temperature of 5,030 K.

Planetary system

In 2005, the discovery of an exoplanet orbiting the star was announced. This is another discovery using the radial velocity method with the HARPS spectrograph. The planet was given the name Melquíades by the IAU after a character in the book One Hundred Years of Solitude. The orbit of this body lies entirely within the habitable zone of the host star, and it is theoretically possible that a large moon orbiting the body, or a hypothetical terrestrial exoplanet at a trojan point, is habitable.