The object orbits the primary star every 83.9 days at an approximate distance of 0.37AU,[3] with anorbital eccentricity of 0.57;[3] for comparison, this orbit is similar to that ofMercury but with almost three times the eccentricity.[3] Based on the radial velocity measurements alone, it was estimated to have a minimum mass of11.069±0.063MJ (at 90°)[10] and a probable mass of approximately63.2MJ (at 10°).[11] However, analysis of its astrometric perturbation of its host star in 2019 found it to have an extremely low inclination of only6.23+1.97 −1.26 degrees, giving it a true mass of107+20 −27MJ and putting it well outside of the range of planetary masses (less than13MJ).[3]
HD 114762 b was thought for a time to be the first extrasolar planet ever detected, predating the discoveries of planets orbitingPSR B1257+12 andmain-sequence star51 Pegasi, in 1992 and 1995, respectively.[12][13] However, now that it has been found to not be a planet, the planets found orbiting PSR B1257+12 were indeed the first exoplanets ever found.[3]
At an event celebrating the career of discoverer David Latham and attended by his colleagues and collaborators, the object was informally dubbed "Latham's Planet".[14] However, this name has no official standing with theInternational Astronomical Union.
