*** Welcome to piglix ***

Iota Andromedae

Iota Andromedae
Diagram showing star positions and boundaries of the Andromeda constellation and its surroundings
Cercle rouge 100%.svg

Location of ι Andromedae (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 23h 38m 08.20130s
Declination +43° 16′ 05.0649″
Apparent magnitude (V) +4.29
Characteristics
Spectral type B8 V
U−B color index –0.29
B−V color index –0.11
Astrometry
Radial velocity (Rv) –0.5 km/s
Proper motion (μ) RA: +27.64 mas/yr
Dec.: -1.02 mas/yr
Parallax (π) 6.53 ± 0.16mas
Distance 500 ± 10 ly
(153 ± 4 pc)
Details
Surface gravity (log g) 3.35 cgs
Temperature 12,620 K
Metallicity [Fe/H] –0.19 ± 0.14 dex
Rotational velocity (v sin i) 70 km/s
Other designations
17 Andromedae, BD+42°4720, FK5 891, HD 222173, HIP 116631, HR 8965, SAO 53216.
Database references
SIMBAD data

Iota Andromedae (ι And, ι Andromedae) is a star in the constellation Andromeda. It has an apparent magnitude of +4.29 and is approximately 500 light years from Earth.

Iota Andromedae 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.



...
Wikipedia

...