Iota Andromedae

Iota Andromedae is a single 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. Based upon parallaxmeasurements, it is located approximately 500 light years distant from the Sun.

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 Hipparcos mission. The star is 116 million years old with 3.1 times the mass of the Sun and is spinning with a projected rotational velocity of 70 km/s. It is radiating 638 times the luminosity of the Sun from its photosphere at an effective temperature of 12,620 K. Iota Andromedae is a debris disk candidate, showing an infrared excess at a wavelengthof 18 µm.