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HD 176871

HD 176871
Observationsdata
Epok: J2000.0
StjärnbildLyran
Rektascension19t 01m 17,35683s[1]
Deklination+26° 17′ 29,0764″[1]
Skenbar magnitud ()+5,69 (V)[2]
Stjärntyp
SpektraltypB5 V[3][2][4]
U–B-0,55[3]
B–V-0,086 ± 0,002[2]
Astrometri
Radialhastighet ()-20,4 ± 1,2[2] km/s
Egenrörelse (µ)RA: -0,489[1] mas/år
Dek.: -9,207[1] mas/år
Parallax ()4,1038 ± 0,0835[1]
Avstånd790 ± 20 lå (244 ± 5 pc)
Absolut magnitud ()-0,80[2]
Detaljer
Massa5,4[4] M☉
Radie3,67[5] R☉
Luminositet232,54[6] L☉
Temperatur10 540[6] K
Metallicitet-0,28 (Fe/H)[4] dex
Vinkelhastighet268 ± 34[7] km/s
Ålder11[4] miljoner år
Andra beteckningar
HD 176871, AG + 26 1968, BD + 26 3429, FK5 3518, GSC 02130-02667, HIC 93393, HIP 93393, HR 7202, 2MASS J19011734 + 2617290, PLX 4418, PPM 108233, SAO 86707, TD1 23735, TYC 2130-2667-1, uvby98 100176871, Gaia DR2 2036774307542657664 [8][9]

HD 176871 är en ensam stjärna[10] belägen i den södra delen av stjärnbilden Lyran. Den har en skenbar magnitud av ca 5,69[2] och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 4,1[1] mas, beräknas den befinna sig på ett avstånd på ca 790 ljusår (ca 244 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -20 km/s.[2]

Egenskaper

HD 176871 är en vit till blå stjärna i huvudserien av spektralklass B5 V.[3] Den har en massa som är ca 5,4[4] solmassor, en radie som är ca 3,7[5] solradier och har ca 233 gånger solens utstrålning av energi[6] från dess fotosfär vid en effektiv temperatur av ca 10 500 K.[6]

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, HD 176871, 7 oktober 2020.

Noter

  1. ^ [a b c d e f] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data 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 source at VizieR.
  2. ^ [a b c d e f g] Anderson, 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.
  3. ^ [a b c] Hill, P. W.; Lynas-Gray, A. E. (September 1977), "UBV photometry and MK spectral classification of northern early-type stars at intermediate galactic latitudes.", Monthly Notices of the Royal Astronomical Society, 180: 691–702, Bibcode:1977MNRAS.180..691H, doi:10.1093/mnras/180.4.691.
  4. ^ [a b c d e] Gullikson, Kevin; et al. (2016), "The Close Companion Mass-ratio Distribution of Intermediate-mass Stars", The Astronomical Journal, 152 (2): 40, arXiv:1604.06456, Bibcode:2016AJ....152...40G, doi:10.3847/0004-6256/152/2/40.
  5. ^ [a b] https://www.universeguide.com/star/93393/hd176871. Hämtad 2020-10-06.
  6. ^ [a b c d] McDonald, I.; et al. (2012), "Fundamental parameters and infrared excesses of Hipparcos stars", Monthly Notices of the Royal Astronomical Society, 427: 343, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x.
  7. ^ Maestro, V.; et al. (2013), "Optical interferometry of early-type stars with PAVO@CHARA - I. Fundamental stellar properties", Monthly Notices of the Royal Astronomical Society, 434 (2): 1321, arXiv:1306.5937, Bibcode:2013MNRAS.434.1321M, doi:10.1093/mnras/stt1092.
  8. ^ http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+176871. Hämtad 2020-10-07.
  9. ^ "HD 176871". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-02-10.
  10. ^ 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.

Externa länkar

v • r
Stjärnor i Lyran
Bayer
Flamsteed
Variabler
R Lyrae (13 Lyr)  · S Lyrae  · T Lyrae  · U Lyrae  · V Lyrae  · W Lyrae  · X Lyrae  · Y Lyrae  · Z Lyrae  · FL Lyrae  · RR Lyrae  · DM Lyrae  · HP Lyrae  · HR Lyrae  · V 473 Lyrae
HD
Övriga
Gliese 758  · GJ 4063  · GSC 02652-01324  · HR 6845  · Kepler-7  · Kepler-8  · Kepler-9  · Kepler-13  · Kepler-14  · Kepler-19  · Kepler-20  · Kepler-24  · Kepler-25  · Kepler-26  · Kepler-30  · Kepler-37  · Kepler-38  · Kepler-46  · Kepler-53  · Kepler-55  · Kepler-59  · Kepler-60  · Kepler-62  · Kepler-65  · Kepler-75  · Kepler-83  · Kepler-88  · Kepler-91  · Kepler-92  · Kepler-93  · Kepler-94  · Kepler-95  · Kepler-98  · Kepler-100  · Kepler-102  · Kepler-103  · Kepler-104  · Kepler-105  · Kepler-109  · Kepler-128  · Kepler-130  · Kepler-131  · Kepler-138  · Kepler-160  · Kepler-174  · Kepler-177  · Kepler-238  · Kepler-277  · Kepler-279  · Kepler-282  · Kepler-350  · Kepler-410  · Kepler-421  · Kepler-429  · Kepler-444  · Kepler-635  · Kepler-705  · KSw 71  · LHS 6343  · LSR J1835+3259  · WASP-3  · WASP-58  · WISE 1828+2650  · NSV 11154  · W1906+40

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