[8] The measurement of the star's radial velocity is poorly constrained, but it appears to be drifting further away at a rate of ~8 km/s.
[9] The stellar classification of GJ 3512 is dM5.5,[3] which determines this to be a small red dwarf star that is generating energy through core hydrogen fusion.
It displays a moderate amount of magnetic activity with a Sun-like cycle lasting 14 years.
It is radiating 1.6% of the luminosity of the Sun from its photosphere at an effective temperature of 3,081 K.[3] A gas giant planet in an eccentric orbit around GJ 3512 was discovered in 2019 utilizing the radial velocity method.
The star's mass is only 250 times that of the gas giant, calling into question traditional models of planetary formation.