HD 27631 is a star with an orbiting exoplanet in the southern constellation of Horologium.
It is too faint to be visible to the naked eye, having an apparent visual magnitude of 8.24.
[2] The star is radiating 97%[3] of the luminosity of the Sun from its photosphere at an effective temperature of 5,737 K.[2] The estimated age is roughly 4.4 billion years[5] and it is spinning slowly with a rotation period of around 31 days.
[2] A survey in 2015 has ruled out the existence of any stellar companions at projected distances above 40 astronomical units.
[6] From 1998 to 2012, the star was under observation from the CORALIE echelle spectrograph at La Silla Observatory.