Epsilon Phoenicis

ε Phoenicis
Location of ε Phoenicis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Phoenix
Right ascension 00h 09m 24.640s[1]
Declination −45° 44′ 50.73″[1]
Apparent magnitude (V) 3.87[2]
Characteristics
Evolutionary stage Red clump[3]
Spectral type K0III[4]
U−B color index +0.84[2]
B−V color index +1.02[2]
Astrometry
Radial velocity (Rv)−9.20[5] km/s
Proper motion (μ) RA: +120.393 mas/yr[1]
Dec.: −179.597 mas/yr[1]
Parallax (π)22.6081 ± 0.1481 mas[1]
Distance144.3 ± 0.9 ly
(44.2 ± 0.3 pc)
Absolute magnitude (MV)0.65[6]
Details
Luminosity67.21[6] L☉
Temperature4,862±42[7] K
Metallicity [Fe/H]+0.00±0.08[7] dex
Rotational velocity (v sin i)< 1.5[8] km/s
Other designations
FK5 3, GC 158, HD 496, HIP 765, HR 25, SAO 214983[9]
Database references
SIMBADdata

Epsilon Phoenicis is a star in the southern constellation of Phoenix. It is visible to the naked eye with an apparent visual magnitude of 3.87.[2] The distance to this star is approximately 144 light years based on parallax measurements, but it is drifting closer with a heliocentric radial velocity of −9.2 km/s.[5]

This is an evolved giant star with a stellar classification of K0III,[4] a star that has used up its core hydrogen and has expanded. It is a red clump star, indicating that it has undergone helium flash and is currently on the core helium-fusing horizontal branch.[3] Epsilon Phoenicis is radiating 67[6] times the luminosity of the Sun from its photosphere at an effective temperature of 4,862 K.[7] Based on the elemental abundance of iron in the stellar atmosphere, the metallicity of Epsilon Phoenicis is similar to that of the Sun.[7]

  1. ^ a b c d Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Ducati2002 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Laney_et_al_2012 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Houk1978 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference XHIP was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference Soubiran_et_al_2022 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference deMedeiros2014 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).