15_Delphini
15 Delphini
Star in the constellation of Delphinus
15 Delphini (15 Del) is a star in the equatorial constellation Delphinus. It has an apparent magnitude of 5.99,[2] allowing it to be faintly seen with the naked eye. 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. It has 123% the mass of the Sun[7] and a diameter of 1.42 R☉.[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.[10]
15 Delphini has 3 companions listed below. Components B and D have different proper motions compared to the host. However, C appears to have a common proper motion, suggesting physical relation,[12] but its parallax indicates a further distance compared to 15 Delphini.[13]