BD−11 4672 is a single star with a pair of orbiting exoplanets in the southern constellation of Scutum, the shield.
It is located at a distance of 89 light years from the Sun, as determined from parallax,[2] but is drifting closer with a radial velocity of −87.5 km/s.
[5] This was recognised as a high proper motion star by German astronomer Max Wolf in 1924[8] and is traversing the celestial sphere at an angular rate of 0.401 arcsec yr−1.
[9] The spectrum of BD−11 4672 matches a K-type main-sequence star, an orange dwarf, with a stellar classification of K7 V.[4] Its age is not well constrained, but is probably older than the Sun.
The star is radiating 16% of the luminosity of the Sun from its photosphere at an effective temperature of 4,550 K.[3] In 2010, a team of astronomers led by astronomer C. Moutou [fr] of the High Accuracy Radial Velocity Planet Searcher performed a radial-velocity analysis, which led to the suspicion of a gas giant exoplanet in orbit around BD−11 4672.