Gliese 849, or GJ 849, is a small, solitary star in the equatorial constellation of Aquarius. It has a reddish hue and is invisible to the naked eye with an apparent visual magnitude of 10.41.^[2] The distance to this star is 28.8 light-years (8.8 parsecs) based on parallax,^[1] but it is drifting closer to the Sun with a radial velocity of −15.3 km/s.^[2] It has a pair of confirmed gas giant companions.^[8]

The stellar classification of GJ 849 is M3.5V,^[4] which means this is a small red dwarf star generating energy through hydrogen fusion at its core region. Various studies have found super-solar abundances in the spectra,^[8] indicating that the elemental abundances of higher mass elements is significantly higher than in the Sun. The star has about half the mass and size of the Sun,^[3] and is spinning slowly with a rotation period of approximately 39 days.^[9] The estimated age of the star is more than three billion years.^[3] It is radiating a mere 2.9%^[5] of the luminosity of the Sun from its photosphere at an effective temperature of 3,490 K.^[5]

In late 2006, a long-period Jupiter-like exoplanet was reported to be orbiting the red dwarf in a period just over 5 years in length. There was also a linear trend in the radial velocities which suggested another longer period companion.^[3] The trend in the radial velocities was confirmed in 2013.^[10] An orbit for the second exoplanet was finally determined in 2015. The first planet discovered, Gliese 849 b, was the first planet discovered orbiting a red dwarf with a semi-major axis greater than 0.21 AU.^[8]

• List of star systems within 25–30 light-years
• Gliese 317
• Gliese 649
• Gliese 581
• List of extrasolar planets