18 Vulpeculae

[2] It is visible to the naked eye as a faint, white-hued star with a combined apparent visual magnitude of 5.51.

[3] The system is moving closer to the Earth with a heliocentric radial velocity of −11.7 km/s.

[4] This is a double-lined spectroscopic binary system with an orbital period of 9.3 days and a small eccentricity of 0.0116.

[4] It is a detached binary with a semimajor axis of 0.14742 ± 0.00047 AU.

The system contains a Delta Scuti variable,[5] but the temperature places it to the blue (hotter) side of the δ Scuti instability strip.