HD 158476
Location of HD 158476 (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Ara
Right ascension 17h 31m 49.09850s[1]
Declination −46° 02′ 12.4311″[1]
Apparent magnitude (V) 6.048[2]
Characteristics
Spectral type F8/G0Ib[3]
B−V color index +0.83[3]
Astrometry
Radial velocity (Rv)−29.0[4] km/s
Proper motion (μ) RA: +1.810[1] mas/yr
Dec.: −3.806[1] mas/yr
Parallax (π)1.7610 ± 0.0460 mas[1]
Distance1,850 ± 50 ly
(570 ± 10 pc)
Details
Mass5.8[1] M☉
Radius38[1] R☉
Luminosity1,142[1] L☉
Surface gravity (log g)1.89[1] cgs
Temperature5,305[1] K
Rotational velocity (v sin i)9.5[3] km/s
Other designations
CD−45°11626, HD 158476, HIP 85788, HR 6513, SAO 228075.
Database references
SIMBADdata

HD 158476 is a supergiant star in the southern constellation of Ara. There is a faint magnitude 10.5 companion at an angular separation of 20.0″ along a position angle of 209° (as of 2013).[5]

References

  1. 1 2 3 4 5 6 7 8 9 10 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ↑ Paunzen, E. (2015). "A new catalogue of Strömgren-Crawford uvbyβ photometry". Astronomy & Astrophysics. 580: A23. arXiv:1506.04568. Bibcode:2015A&A...580A..23P. doi:10.1051/0004-6361/201526413. S2CID 73623700.
  3. 1 2 3 De Medeiros, J. R.; et al. (November 2002). "A catalog of rotational and radial velocities for evolved stars. II. Ib supergiant stars". Astronomy and Astrophysics. 395: 97–98. Bibcode:2002A&A...395...97D. doi:10.1051/0004-6361:20021214.
  4. ↑ Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  5. ↑ Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22
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