HD 114762
HD 114762 is a triple star system approximately away in the constellation Coma Berenices. It consists of a yellow-white F-type main-sequence star and two red dwarf companions & approximately 0.36 & distant. Both are low-metal subdwarfs. Planets around such metal-poor stars are rare. A telescope or strong binoculars are needed to view the primary. had been used by scientists as a "standard star", one whose radial velocity is well established, but with the discovery of the spectroscopic companion its usefulness as a standard has been called into question.
The red dwarf companion is classified as an ultra-cool dwarf, with a spectral type around M9. With a visual magnitude of 15 and separated from the primary by only three arcseconds, it can only be seen with a powerful telescope. It is estimated to be around 10 billion years old, although the properties of such low-mass stars are very similar across a wide range of ages. It is calculated have only 8% of the mass of the Sun, a tenth of its radius, and with a temperature of about it produces less than a thousandth of its luminosity.