HD 171301
| Observation data EpochJ2000.0EquinoxJ2000.0 | |
|---|---|
| Constellation | Lyra |
| Right ascension | 18h32m49.95782s[1] |
| Declination | +30° 33′ 15.14853″[1] |
| Apparent magnitude(V) | 5.47[2]+ 12.7[3] |
| Characteristics | |
| Spectral type | B8IV[4]or B8V[5] |
| U−Bcolor index | −0.463[2] |
| B−Vcolor index | −0.077±0.003[2] |
| Astrometry | |
| Radial velocity(Rv) | −10.3±1.5[6]km/s |
| Proper motion(μ) | RA:13.229[1]mas/yr Dec.:11.581[1]mas/yr |
| Parallax(π) | 9.3894 ± 0.1103mas[1] |
| Distance | 347 ± 4ly (107 ± 1pc) |
| Absolute magnitude(MV) | 0.27[2] |
| Details | |
| A | |
| Mass | 3.12±0.03[7]M☉ |
| Radius | 2.7±0.1[8]R☉ |
| Luminosity | 123.8+7.7 −7.1[7]L☉ |
| Temperature | 11,695±81[7]K |
| Metallicity[Fe/H] | +0.08±0.07[9]dex |
| Rotational velocity(vsini) | 36±2[5]km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 171301is a suspectedbinary star[11]system in the northernconstellationofLyra.It has not been well-studied.[5]The brighter member of the pair, designated component A,[3]has a blue-white hue and is visible to the naked eye with anapparent visual magnitudeof 5.47.[2]The system is located at a distance of approximately 347light yearsfrom theSunbased onparallax,but is drifting closer with aradial velocityof −10 km/s.[6]
Thestellar classificationof HD 171301 is B8IV,[4]matching alateB-type starthat may be asubgiantthat isevolvingoff themain sequence.HD 171301 appears to be a type ofchemically peculiarmercury-manganese star.[5]It has an estimated mass three[7]times that of the Sun and 2.7 times the Sun's radius.[8]The star is spinning with aprojected rotational velocityof 36 km/s.[5]It is radiating 124[7]times the luminosity of the Sun from itsphotosphereat aneffective temperatureof 11,695 K.[7]
Its companion, component B, is a 13th magnitude star of an unknown spectral type.[12]It was first reported byS. W. Burnhamin 1891. As of 1998, it was located at anangular separationof6.7arcsecondsfrom the brighter star along aposition angleof 157°.[3]
References
[edit]- ^abcdeBrown, A. G. A.;et al. (Gaia collaboration) (August 2018)."GaiaData Release 2: Summary of the contents and survey properties ".Astronomy & Astrophysics.616.A1.arXiv:1804.09365.Bibcode:2018A&A...616A...1G.doi:10.1051/0004-6361/201833051.Gaia DR2 record for this sourceatVizieR.
- ^abcdeAnderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation".Astronomy Letters.38(5): 331.arXiv:1108.4971.Bibcode:2012AstL...38..331A.doi:10.1134/S1063773712050015.S2CID119257644.
- ^abcMason, B. D.; et al. (2014)."The Washington Visual Double Star Catalog".The Astronomical Journal.122(6): 3466–3471.Bibcode:2001AJ....122.3466M.doi:10.1086/323920.
- ^abOsawa, Kiyoteru (1959), "Spectral Classification of 533 B8-A2 Stars and the Mean Absolute Magnitude of A0 V Stars",Astrophysical Journal,130:159,Bibcode:1959ApJ...130..159O,doi:10.1086/146706
- ^abcdeAdelman, S. J.; et al. (June 2017). "Elemental abundance analyses with DAO spectrograms: XL".Astronomische Nachrichten.338(5): 584–597.Bibcode:2017AN....338..584A.doi:10.1002/asna.201613214.
- ^abGontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35495 Hipparcos stars in a common system".Astronomy Letters.32(11): 759–771.arXiv:1606.08053.Bibcode:2006AstL...32..759G.doi:10.1134/S1063773706110065.S2CID119231169.
- ^abcdefZorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities".Astronomy & Astrophysics.537:A120.arXiv:1201.2052.Bibcode:2012A&A...537A.120Z.doi:10.1051/0004-6361/201117691.S2CID55586789.
- ^abKervella, Pierre; et al. (March 2019). "Stellar and substellar companions of nearby stars from Gaia DR2. Binarity from proper motion anomaly".Astronomy & Astrophysics.623:23.arXiv:1811.08902.Bibcode:2019A&A...623A..72K.doi:10.1051/0004-6361/201834371.S2CID119491061.A72.
- ^Gáspár, András; et al. (2016)."The Correlation between Metallicity and Debris Disk Mass".The Astrophysical Journal.826(2): 171.arXiv:1604.07403.Bibcode:2016ApJ...826..171G.doi:10.3847/0004-637x/826/2/171.S2CID119241004.
- ^"HD 171301".SIMBAD.Centre de données astronomiques de Strasbourg.RetrievedOctober 16,2007.
- ^Eggleton, P. P.; Tokovinin, A. A. (September 2008)."A catalogue of multiplicity among bright stellar systems".Monthly Notices of the Royal Astronomical Society.389(2): 869–879.arXiv:0806.2878.Bibcode:2008MNRAS.389..869E.doi:10.1111/j.1365-2966.2008.13596.x.S2CID14878976.
- ^"CCDM J18328+3033B".SIMBAD.Centre de données astronomiques de Strasbourg.RetrievedOctober 16,2007.