The star is relatively close at a distance of 99 light years[1] but is receding with a heliocentric radial velocity of 4.1 km/s.
[5] 15 Del has a stellar classification of F5 V,[3] indicating that it is an ordinary F-type main-sequence star.
[8] It radiates at 3 times the luminosity of the Sun[8] from its photosphere at an effective temperature of 6,624 K,[9] giving a yellow-white hue.
15 Del has an iron abundance 74% that of the Sun and at an age of 1.21 billion years[9] — spins leisurely with a projected rotational velocity of 5.6 km/s.
However, C appears to have a common proper motion, suggesting physical relation,[12] but its parallax indicates a further distance compared to 15 Delphini.