Phi Phoenicis

Phi Phoenicis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Phoenix
Right ascension 01h 54m 22.032s[1]
Declination −42° 29′ 48.94″[1]
Apparent magnitude (V) 5.115[2]
Characteristics
Spectral type B9pHgMn[3]
B9V[4]
U−B color index −0.125[2]
B−V color index −0.06[2]
Astrometry
Radial velocity (Rv)10.44±0.04[5] km/s
Proper motion (μ) RA: −33.476 mas/yr[1]
Dec.: −30.113 mas/yr[1]
Parallax (π)10.185 ± 0.1886 mas[1]
Distance320 ± 6 ly
(98 ± 2 pc)
Absolute magnitude (MV)0.243±0.076[6]
Orbit[5]
Period (P)1,126.11±0.16 d
Semi-major axis (a)36.3 mas[3]
Eccentricity (e)0.589±0.004
Inclination (i)93±4.7[3]°
Periastron epoch (T)2453766.2±2.2
Argument of periastron (ω)
(secondary)		3.52±0.01 [rad]°
Semi-amplitude (K1)
(primary)		9.21±0.09 km/s
Details
φ Phe A
Mass3.0±0.12[3] M☉
Radius2.817±0.157[6] R☉
Luminosity87±7[6] L☉
Surface gravity (log g)3.8±0.1[6] cgs
Temperature10,500±200[6] K
Metallicity [Fe/H]0.15[3] dex
Rotation9.53077±0.00011 d[5]
Rotational velocity (v sin i)13.62±0.22[6] km/s
Age260[3] Myr
φ Phe B
Mass0.91±0.025[3] M☉
Other designations
φ Phe, CPD−43°583, FK5 1053, GC 2315, HD 11753, HIP 8882, HR 558, SAO 215697[7]
Database references
SIMBADdata

Phi Phoenicis, Latinized from φ Phoenicis, is a binary star[3] system in the southern constellation of Phoenix. It is faintly visible to the naked eye with an apparent visual magnitude of 5.1.[2] Based upon an annual parallax shift of 10.185 mas as seen from Earth,[1] it is located approximately 320 light years from the Sun. It is moving away with a heliocentric radial velocity of 10.4 km/s.[5]

  1. ^ a b c d e Cite error: The named reference GaiaEDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Cousins1972 was invoked but never defined (see the help page).
  3. ^ a b c d e f g h Cite error: The named reference Pourbaix2013 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Hubrig2012 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Korhonen2013 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference Makaganiuk2012 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).