17 Delphini is a solitary[11] star in the equatorial constellation Delphinus.
Located 517 light years away,[1] it is approaching the Solar System with a heliocentric radial velocity of −10.2 km/s.
[8] It shines at 219 solar luminosities from its enlarged photosphere at an effective temperature of 4,616 K,[8] giving it an orange glow.
17 Del has an iron abundance 64% that of the Sun[9] and spins modestly with a projected rotational velocity of 3 km/s.
[10] 17 Del is suspected to be a variable star of unknown type ranging from 5.16 to 5.27.