31 Persei

	31 Persei
Observationsdata; Epok: J2000.0
Stjärnbild	Perseus
Rektascension	03t 19m 07,63796s
Deklination	+50° 05′ 41,88724″
Skenbar magnitud ()	+5,05, +5,032 ± 0,009(V)
Stjärntyp
Spektraltyp	B5 V,
U–B	-0,53
B–V	-0,067 ± 0,004
Astrometri
Radialhastighet ()	-1,60 ± 0,8 km/s
Egenrörelse (µ)	RA: 23,580 ± 0,358 mas/år; Dek.: -23,322 ± 0,356 mas/år
Parallax ()	5,8399 ± 0,1792
Avstånd	560 ± 20 lå (172 ± 5 pc)
Absolut magnitud ()	-1,44
Detaljer
Massa	4,647 M☉
Radie	3,4 R☉
Luminositet	950 L☉
Temperatur	15 301 K
Metallicitet	0,00 (Fe/H) dex
Vinkelhastighet	260 km/s
Ålder	234 miljoner år
Andra beteckningar
	GEN# +5.20200401, 2MASS J03190764+5005420, UBV 3180, AG+49 381, GSC 03319-02074, PPM 28382, UBV M 40914, ALS 17276, HD 20418, ROT 449, uvby98 520200401, BD+49 902, HGAM 199, SAO 38714, WEB 2970, Melotte 20 401, HIC 15444, SKY# 4981, YPAC 89, GC 3945, HIP 15444, TD1 2053, Gaia DR2 442501619995081088, GCRV 1823, HR 989, TYC 3319-2074-1

31 Persei, som är stjärnans Flamsteed-beteckning, är en ensam stjärna belägen i den norra delen av stjärnbilden, Perseus. Den har en skenbar magnitud på ca 5,05 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 5,8 mas, beräknas den befinna sig på ett avstånd på ca 560 ljusår (ca 172 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet av ca -1,6 km/s. Stjärnan ingår troligen i Alfa Persei-hopen.

Egenskaper

31 Persei är blå till vit stjärna i huvudserien av spektralklass B5 V. Den har en massa som är ca 4,6 solmassor, en radie som är ca 3,4 solradier och utsänder ca 950 gånger mera energi än solen från dess fotosfär vid en effektiv temperatur på ca 15 300 K.

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, 31 Persei, 30 juli 2020.

Noter

1 2 3 4 5 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.
1 2 3 ”Basic data: * 31 Per – Star in Cluster” (på engelska). Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=31+Per&submit=SIMBAD+search. Läst 26 februari 2019.
1 2 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. Vizier catalog entry
1 2 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
↑ 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
↑ van Leeuwen (2007). ”Hipparcos, the New Reduction” (på engelska). http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&HIP=15444. Läst 26 februari 2019.
1 2 Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
1 2 3 4 5 Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468.
1 2 Sheikhi, Najmeh; et al. (March 2016). "The binary fraction and mass segregation in Alpha Persei open cluster". Monthly Notices of the Royal Astronomical Society. 457 (1): 1028–1036. arXiv:1601.02186. Bibcode:2016MNRAS.457.1028S. doi:10.1093/mnras/stw059.
1 2 Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics (Third ed.). 367 (2): 521–524. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.
↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. Vizier catalog entry
↑ Abt, Helmut A.; et al. (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.
↑ Gontcharov, G. A. (November 2012). "Spatial distribution and kinematics of OB stars". Astronomy Letters. 38 (11): 694–706. arXiv:1606.09028. Bibcode:2012AstL...38..694G. doi:10.1134/S1063773712110035.
↑ "31 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 2019-07-13.
↑ 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.
↑ Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
↑ Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the α Persei Cluster". The Astrophysical Journal. 752 (1): 12. arXiv:1204.3950. Bibcode:2012ApJ...752...58Z. doi:10.1088/0004-637X/752/1/58. 58.
↑ Hoogerwerf, Ronnie (mars 2000). ”OB association members in the ACT and TRC catalogues” (på engelska). Monthly Notices of the Royal Astronomical Society 313 (1): sid. 43−65. doi:10.1046/j.1365-8711.2000.03192.x. https://archive.org/details/sim_monthly-notices-of-the-royal-astronomical-society_2000-03-21_313_1/page/43.

Externa länkar

https://www.universeguide.com/star/15444/31persei.

[A-1] 1 2 3 4 5 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.

[SIMBAD-2] 1 2 3 ”Basic data: * 31 Per – Star in Cluster” (på engelska). Centre de Données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=31+Per&submit=SIMBAD+search. Läst 26 februari 2019.

[B-3] 1 2 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. Vizier catalog entry

[C-4] 1 2 Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.

[D-5] 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

[hip2-6] van Leeuwen (2007). ”Hipparcos, the New Reduction” (på engelska). http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&HIP=15444. Läst 26 februari 2019.

[E-7] 1 2 Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.

[F-8] 1 2 3 4 5 Silaj, J.; Landstreet, J. D. (2014). "Accurate age determinations of several nearby open clusters containing magnetic Ap stars". Astronomy & Astrophysics. 566: A132. arXiv:1407.4531. Bibcode:2014A&A...566A.132S. doi:10.1051/0004-6361/201321468.

[G-9] 1 2 Sheikhi, Najmeh; et al. (March 2016). "The binary fraction and mass segregation in Alpha Persei open cluster". Monthly Notices of the Royal Astronomical Society. 457 (1): 1028–1036. arXiv:1601.02186. Bibcode:2016MNRAS.457.1028S. doi:10.1093/mnras/stw059.

[H-10] 1 2 Pasinetti Fracassini, L. E.; et al. (February 2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)". Astronomy and Astrophysics (Third ed.). 367 (2): 521–524. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.

[I-11] Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031. Vizier catalog entry

[J-12] Abt, Helmut A.; et al. (2002). "Rotational Velocities of B Stars". The Astrophysical Journal. 573: 359. Bibcode:2002ApJ...573..359A. doi:10.1086/340590.

[K-13] Gontcharov, G. A. (November 2012). "Spatial distribution and kinematics of OB stars". Astronomy Letters. 38 (11): 694–706. arXiv:1606.09028. Bibcode:2012AstL...38..694G. doi:10.1134/S1063773712110035.

[L-14] "31 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 2019-07-13.

[M-15] 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.

[N-16] Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry

[O-17] Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the α Persei Cluster". The Astrophysical Journal. 752 (1): 12. arXiv:1204.3950. Bibcode:2012ApJ...752...58Z. doi:10.1088/0004-637X/752/1/58. 58.

[Hoogerwerf2000-18] Hoogerwerf, Ronnie (mars 2000). ”OB association members in the ACT and TRC catalogues” (på engelska). Monthly Notices of the Royal Astronomical Society 313 (1): sid. 43−65. doi:10.1046/j.1365-8711.2000.03192.x. https://archive.org/details/sim_monthly-notices-of-the-royal-astronomical-society_2000-03-21_313_1/page/43.