Lambda1 Phoenicis

From Wikipedia, the free encyclopedia
Jump to: navigation, search
For other stars with this Bayer designation, see λ Phoenicis.
λ1 Phoenicis
Phoenix constellation map.svg
link=Lambda1 Phoenicis

Location of λ1 Phoenicis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Phoenix
Right ascension 00h 31m 24.98046s[1]
Declination −48° 48′ 12.6538″[1]
Apparent magnitude (V) 4.76[2]
Characteristics
Spectral type A0V[3]
U−B color index +0.04[4]
B−V color index +0.02[4]
Astrometry
Radial velocity (Rv) -2.00[5] km/s
Proper motion (μ) RA: +140.49[1] mas/yr
Dec.: +19.25[1] mas/yr
Parallax (π) 18.88 ± 0.24[1] mas
Distance 173 ± 2 ly
(53.0 ± 0.7 pc)
Absolute magnitude (MV) 1.14[2]
Details
Mass 2.26[6] M
Luminosity 33.68[2] L
Surface gravity (log g) 4.17[6] cgs
Temperature 9,931[6] K
Metallicity [Fe/H] 0.00[7] dex
Rotational velocity (v sin i) 111[6] km/s
Other designations
CCDM J00314-4848A, FK5 15, GC 619, HIP 2472, HR 125, HD 2834, SAO 215131, WDS J00314-4848A
Database references
SIMBAD data

Lambda1 Phoenicis1 Phe) is a class A0V[3] (white main-sequence) star in the constellation Phoenix. Its apparent magnitude is 4.76[2] and it is approximately 173 light years away based on parallax.[1]

It has one companion at a distance of about 30" and magnitude 13.7.[8][3]

References[edit]

  1. ^ a b c d e f Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752Freely accessible. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.  Vizier catalog entry
  2. ^ a b c d Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971Freely accessible. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015.  Vizier catalog entry
  3. ^ a b c Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920.  Vizier catalog entry
  4. ^ a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode:2014JAVSO..42..443M. Vizier catalog entry
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. 
  6. ^ a b c d David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154Freely accessible. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146.  Vizier catalog entry
  7. ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814Freely accessible. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.  Vizier catalog entry
  8. ^ Dommanget, J.; Nys, O. (2002). "VizieR Online Data Catalog: CCDM (Catalog of Components of Double & Multiple stars) (Dommanget+ 2002)". VizieR On-line Data Catalog: I/274. Originally published in: Observations et Travaux 54. 1274. Bibcode:2002yCat.1274....0D.  Vizier catalog entry