Eta Phoenicis

Eta Phoenicis (η Phe) is a class A0IV^[2] (white subgiant) star in the constellation Phoenix. Its apparent magnitude is 4.36^[2] and it is approximately 246 light years away based on parallax.^[1]

η Phoenicis

Location of η Phoenicis (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Phoenix
Right ascension	00h 43m 21.23841s[1]
Declination	−57° 27′ 47.0073″[1]
Apparent magnitude (V)	4.36[2]
Characteristics
Spectral type	A0IV[2]
U−B color index	-0.02[3]
B−V color index	+0.00[3]
Astrometry
Radial velocity (Rv)	+7.70[4] km/s
Proper motion (μ)	RA: -5.07[1] mas/yr Dec.: +16.51[1] mas/yr
Parallax (π)	13.24±0.34 mas[1]
Distance	246 ± 6 ly (76 ± 2 pc)
Absolute magnitude (MV)	-0.03[2]
Details
Mass	2.93[5] M☉
Luminosity	120[5] L☉
Surface gravity (log g)	3.85[6] cgs
Temperature	9,822[6] K
Metallicity [Fe/H]	0.00[7] dex
Rotational velocity (v sin i)	124[5] km/s
Other designations
CCDM J00434-5728A, FK5 23, GC 866, HIP 3405, HR 191, HD 4150, SAO 232162, WDS J00434-5728A
Database references
SIMBAD	data

Eta Phoenicis has two reported companions; in addition to a distant secondary, B, at magnitude 11.5 and separation 20", the primary has a reported companion Ab with an estimated separation of 6.8 AU, a period slightly longer than 10 years, a magnitude of 8.5, and a spectral type around G5V.^[8][9] The primary is surrounded by an orbiting debris disk.^[10]