31 Vulpeculae

It is visible to the naked eye as a faint, yellow-hued point of light with an apparent visual magnitude of 4.56.

[2] The system is located approximately 228 light years away from the Sun based on parallax,[1] and it is drifting further away with a radial velocity of +2.25 km/s.

[5] The variable radial velocity of this system was first suspected by German Astronomer Friedrich Küstner in 1914.

[8] It is a red clump giant,[10] which indicates it is on the horizontal branch and is generating energy through helium fusion at its core.

The star is radiating 53[2] times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 5,261 K.[8] The companion may be a degenerate white dwarf with about 0.4 M☉.