33 Vulpeculae is a single star located around 500 light-years away from the Sun in the northern constellation of Vulpecula. It is visible to the naked eye as a dim, orange-hued star with an apparent visual magnitude of 5.31. The object is drifting closer to the Earth with a heliocentric radial velocity of −25 km/s.
This is an evolved giant star with a stellar classification of K3.5 III, having exhausted the supply of hydrogen at it its core and expanded to 35 times the Sun's radius. It serves as a spectral standard for stars of its particular class. This star is radiating 334 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,070 K.