Arcturus

Ón Vicipéid, an chiclipéid shaor.
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WD Bosca Tíreolaíocht FhisiceachArcturus
Arcturus (optical).png
Tipus Réalta agus navigational star (en) Aistrigh
Part de Arcturus stream (en) Aistrigh, Spring Triangle (en) Aistrigh agus An tAoire
Situació geogràfica néal idir-réaltach logánta
Història
Catàleg Henry Draper Catalogue (en) Aistrigh: HD 124897. ,Hipparcos Catalogue (en) Aistrigh: HIP 69673. ,Bright Star Catalogue (en) Aistrigh: HR 5340. ,IRAS (en) Aistrigh: IRAS 14133+1925. ,Smithsonian Astrophysical Observatory Star Catalog (en) Aistrigh: SAO 100944. ,2MASS: 2MASS J14153968+1910558. ,Gliese Catalogue of Nearby Stars (en) Aistrigh: GJ 541. ,American Association of Variable Star Observers (en) Aistrigh: AAVSO 1411+19. ,Bayer designation (en) Aistrigh: α Boo. ,Astronomische Gesellschaft Katalog (en) Aistrigh: AG+19 1335. ,All-sky Compiled Catalogue (en) Aistrigh: ASCC 870215. ,Durchmusterung (en) Aistrigh: BD+19 2777. ,Catalogue of suspected variable stars (en) Aistrigh: CSV 101433. ,FK5 (en) Aistrigh: FK5 526. ,Boss General Catalogue (en) Aistrigh: GC 19242. ,General Catalogue of Stellar Radial Velocities (en) Aistrigh: GCRV 8341. ,Hipparcos Input Catalogue (en) Aistrigh: HIC 69673. ,Two-Micron Sky Survey (en) Aistrigh: IRC +20270. ,JP11 (en) Aistrigh: JP11 2486. ,Luyten Five-Tenths catalogue (en) Aistrigh: LFT 1084. ,Luyten Half-Second catalogue (en) Aistrigh: LHS 48. ,LSPM-NORTH catalog (en) Aistrigh: LSPM J1415+1910. ,Luyten Two-Tenths catalogue (en) Aistrigh: LTT 14184. ,Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) Aistrigh: N30 3229. ,New Luyten Two-Tenths catalogue (en) Aistrigh: NLTT 36756. ,New Catalogue of Suspected Variable Stars (en) Aistrigh: NSV 6603. ,General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh: PLX 3242. ,General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh: PLX 3242.00. ,Tokyo Photoelectric Meridian Circle Catalog (en) Aistrigh: PMC 90-93 376. ,PPM Star Catalogue (en) Aistrigh: PPM 130442. ,The Revised AFGL (RAFGL) catalogue (en) Aistrigh: RAFGL 1693. ,Catalogue of rotational velocities of the stars (en) Aistrigh: ROT 2044. ,Southern Reference Star Catalog (en) Aistrigh: SRS 30526. ,TD1 Catalog of Stellar Ultraviolet Fluxes (en) Aistrigh: TD1 17351. ,Tycho Catalogue (en) Aistrigh: TYC 1472-1436-1. ,UBV Photoelectric Photometry Catalogue (en) Aistrigh: UBV 12551. ,Photoelectric catalogue, magnitudes and colors of stars in the UBV and UCBV systems (en) Aistrigh: UBV M 20076. ,uvbyβ Photoelectric Photometric Catalogue (en) Aistrigh: uvby98 100124897. ,Yunnan Photoelectric Astrolabe Catalogue (en) Aistrigh: YPAC 52. ,Catalog of Components of Double and Multiple Stars (en) Aistrigh: CCDM J14157+1911A. ,Washington Double Star Catalog (en) Aistrigh: WDS J14157+1911A. ,Catalogue of proper motion stars (en) Aistrigh: Ci 20 843. ,Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) Aistrigh: PM 14134+1927. ,Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) Aistrigh: PM 14134-1927. ,Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) Aistrigh: WEB 12132. ,Flamsteed designation (en) Aistrigh: 16 Boo. ,: HDS 2003A. ,: GEN# +1.00124897. ,: SKY# 26028. ,The TESS Input Catalog and Candidate Target List (en) Aistrigh: TIC 459832522. ,: GAT 1341. ,: SV* ZI 1054. ,: USNO-B1.0 1091-00221874. ,: USNO 850. ,: [HFE83] 1018. ,: Arcturus. ,: ** HDS 2003A.

Is Arcturus (α Boo, α Boötis, Alpha Boötis) sa réaltbhuíon Boötes an réalta is gile sa leathsféar thuaidh spéartha. Le mhéid radharcach de −0.05, s’é an ceathrú réalta is gile i spéir na hoíche ag leanúint Sirius de mhéid -1.46, Canopus de mhéid -0.86 agus Alpha Centauri de mhéid -0.27. Tá sé ina réalta i ngar go maith mar níl sé ach ar chianfhad de 36.7 solasbhliain ón Dhomhain agus mar aon le Vega agus Sirius is cheann de na réaltaí is lonraí i gcomharsanacht na Gréine é.

Cineál[cuir in eagar | athraigh foinse]

Tá Arcturus ina réalta oráisteach de chineál K0 III le dearbhmhéid de -0.30. Is dócha go bhfuil a hidrigin cáite óna chorplár agus go bhfuil sé anois ina réim loscaidh slige hidrigine. Leanfaidh sé ag méadú roimh dul isteach sa réim craobh cothrománach dá thimthriall beatha.

Bootes constellation map.png

Tá Arcturus i réaltbhuíon Boötes.


Sonra Breathnaithe[cuir in eagar | athraigh foinse]

Réaltbhuíon Boötes

Fuaimneadh /ɑːrkˈtjʊərəs/

Ceartéirí 14u 15n 39.7s

Díochlaonadh +19° 10′ 56″

Méid fhollasach (breathnaithe) −0.05

Tréithe[cuir in eagar | athraigh foinse]

Cineál speictreach K0 III

Méid fhollasach (radharcach) −2.25

U−B innéacs dathach +1.28

B−V innéacs dathach +1.23

R−I innéacs dathach +0.65

Nóta (catagóir: athrógach): H and K astaíocht

Réaltmhéadracht[cuir in eagar | athraigh foinse]

Luas gathach (Rv) −5.19 km/s

Gluaiseacht ceart (μ) RA: −1093.45 mais/yr

Dec.: −1999.40[5] mais/bhl

Saobhdhiallas (π) 88.83 ± 0.54[1] mais

Cianfhad 36.7 ± 0.2 sbh ,, (11.26 ± 0.07 pc)

Dearbhmhéid (MV) −0.30±0.02


Mionphointí[cuir in eagar | athraigh foinse]

Mais 1.08±0.06 M☉

Ga 25.4±0.2 R☉

Lonrachas 170 L☉

Imtharraingt dromchlach (log g) 1.66±0.05 cgs

Teocht 4286±30 K

Cóimheas miotalach [Fe/H] −0.52±0.04 dex

Luas rothlaithe (v sin i) 2.4±1.0 km/s

Aois 7.1+1.5 | −1.2 Gbhl

Ainmchomharthaí eile[cuir in eagar | athraigh foinse]

Alramech, Abramech, α Boötis, 16 Boötes, BD+19°2777, GCTP 3242.00, GJ 541, HD 124897, HIP 69673, HR 5340, LHS 48, SAO 100944.

Tagartaí storshonracha SIMBAD sonra