Lambda1 Phoenicis

For other stars with this Bayer designation, see λ (lambda) Phoenicis.
λ1 Phoenicis
Location of λ1 Phoenicis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Phoenix
Right ascension 00h 31m 24.98200s[1]
Declination −48° 48′ 12.6759″[1]
Apparent magnitude (V) 4.76[2]
Characteristics
Spectral type A0Va[3]
U−B color index +0.04[4]
B−V color index +0.02[4]
Astrometry
Radial velocity (Rv)−2.0±4.2[5] km/s
Proper motion (μ) RA: +139.946[1] mas/yr
Dec.: +21.275[1] mas/yr
Parallax (π)17.8163 ± 0.2228 mas[1]
Distance183 ± 2 ly
(56.1 ± 0.7 pc)
Absolute magnitude (MV)1.14[2]
Details
Mass2.26[6] M☉
Radius2.24[7] R☉
Luminosity33.68[2] L☉
Surface gravity (log g)4.17[6] cgs
Temperature9,931[6] K
Metallicity [Fe/H]0.00[8] dex
Rotational velocity (v sin i)111[6] km/s
Age224[6] Myr
Other designations
λ1 Phe, CD−49°115, FK5 15, GC 619, HD 2834, HIP 2472, HR 125, SAO 215131, CCDM J00314-4848A, WDS J00314-4848A[9]
Database references
SIMBADdata

λ1 Phoenicis, Latinized as Lambda1 Phoenicis, is a double star[10] in the southern constellation of Phoenix. It is visible to the naked eye as a faint, white-hued point of light with a combined apparent visual magnitude of 4.76.[2] The system is located approximately 183 light years away from the Sun based on parallax.[1] It is a member of the Hyades Supercluster.[11]

The brighter component is an A-type main-sequence star with a stellar classification of A0Va.[3] It may form a binary system of two roughly equal stars.[10] An infrared excess suggests there is a debris disk orbiting 46.3 AU from the star with a mean temperature of 95 K.[7] It has one visual companion at an angular separation of about 30″ and magnitude 13.7.[12][13]

  1. ^ a b c d e f Cite error: The named reference dr2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference XHIP was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference gray1987 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Mallama2014 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference David2015 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Cotten2016 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Gontcharov2012 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).
  10. ^ a b Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Eggen1998 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference CCDM was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference WDS was invoked but never defined (see the help page).