Iota Andromedae

Iota Andromedae is a single[11] star in the northern constellation of Andromeda. It has the Flamsteed designation 17 Andromedae, while Iota Andromedae is the Bayer designation as Latinized from ι Andromedae. This object is visible to the naked eye at night as a faint, blue-white hued star with an apparent visual magnitude of +4.29.[2] Based upon parallax measurements, it is located approximately 500 light years distant from the Sun.[1]

This object is a B-type main-sequence star with a stellar classification of B8 V. It is among the least variable stars observed during the Hipparcosmission.[6] The star is 116[4] million years old with 3.1[4] times the mass of the Sun and is spinning with a projected rotational velocity of 70 km/s.[9]It is radiating 638[7] times the luminosity of the Sun from its photosphere at an effective temperature of 12,620 K.[8] Iota Andromedae is a debris disk candidate, showing an infrared excess at a wavelength of 18 µm.