Astronomy:HD 125658

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Short description: Star in the constellation Boötes
HD 125658
Observation data
Equinox J2000.0]] (ICRS)
Constellation Boötes[1]
Right ascension  14h 20m 08.66452s[2]
Declination +30° 25′ 44.8555″[2]
Apparent magnitude (V) 6.34 - 6.45[3]
Characteristics
Spectral type A5III[4] (kA3hA4mF0)‍[5]
U−B color index +0.10[6]
B−V color index +0.16[6]
Variable type Suspected[3]
Astrometry
Radial velocity (Rv)+1.3[7] km/s
Proper motion (μ) RA: −9.164[2] mas/yr
Dec.: −5.971[2] mas/yr
Parallax (π)11.9629 ± 0.1441[2] mas
Distance273 ± 3 ly
(84 ± 1 pc)
Absolute magnitude (MV)+1.61[1]
Details
Mass2.0[8] M☉
Radius2.0[8] R☉
Luminosity17[8] L☉
Surface gravity (log g)4.13[8] cgs
Temperature8,213[8] K
Metallicity [Fe/H]−0.01[9] dex
Rotational velocity (v sin i)26[10] km/s
Age667[9] Myr
Other designations
BD+31°2605, HD 125658, HIP 70051, HR 5374, NSV 6633, SAO 64074[11]
Database references
SIMBADdata

HD 125658 is a candidate variable star[3] in the northern constellation of Boötes. It is a hot giant star about 273 light years away.

One published spectral class, kA3hA4mF0, would identify HD 125658 as an Am star, but this chemical peculiarity is considered doubtful.[12] The star's apparent magnitude has been reported to vary between 6.34 and 6.45, but this has not been confirmed.[3]

References

  1. ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 3.3 Samus, N. N.; Durlevich, O. V. (2004). "Combined General Catalogue of Variable Stars (GCVS4.2)". http://cdsarc.u-strasbg.fr/viz-bin/Cat?II/250. 
  4. ↑ Cowley, A. et al. (April 1969). "A study of the bright A stars. I. A catalogue of spectral classifications". Astronomical Journal 74: 375–406. doi:10.1086/110819. Bibcode: 1969AJ.....74..375C. 
  5. ↑ Osawa, Kiyoteru (1959). "Spectral Classification of 533 B8-A2 Stars and the Mean Absolute Magnitude of a0 V Stars". The Astrophysical Journal 130: 159. doi:10.1086/146706. Bibcode: 1959ApJ...130..159O. 
  6. ↑ 6.0 6.1 Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV Data. SIMBAD. Bibcode: 1986EgUBV........0M. 
  7. ↑ Wielen, R. et al. (2000). "Sixth Catalogue of Fundamental Stars (FK6). Part III. Additional fundamental stars with direct solutions". Veröffentlichungen Astronomisches Rechen-Institut Heidelberg (Karlsruhe: Verlag G. Braun) 37 (37): 1–308. ISBN 3-7650-0536-3. Bibcode: 2000VeARI..37....1W. 
  8. ↑ 8.0 8.1 8.2 8.3 8.4 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S. 
  9. ↑ 9.0 9.1 Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G. 
  10. ↑ Royer, F. et al. (October 2002). "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i". Astronomy and Astrophysics 393: 897–911. doi:10.1051/0004-6361:20020943. Bibcode: 2002A&A...393..897R. 
  11. ↑ "HD 125658". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+125658. 
  12. ↑ Renson, P.; Manfroid, J. (2009). "Catalogue of Ap, HGMN and Am stars". Astronomy and Astrophysics 498 (3): 961. doi:10.1051/0004-6361/200810788. Bibcode: 2009A&A...498..961R. 




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