Arcturus

Ón Vicipéid, an chiclipéid shaor.
WD Bosca Sonraí Réad RéalteolaíochArcturus
Arcturus (optical).png
Cineál réalta agus réalta threorach
Cineál speictreach (réalta) K2IIIp[1] Cuir in eagar ar Wikidata
Réaltbhuíon An tAoire Cuir in eagar ar Wikidata
Aois J2000.0 Cuir in eagar ar Wikidata
Saintréithe fisiceacha agus réaltmhéadracha
Fad ón Domhan 36.7 ly Cuir in eagar ar Wikidata
Ga 25.4 ga gréine Cuir in eagar ar Wikidata
Dearbhmhéid −0.38
−0.304[2] Cuir in eagar ar Wikidata
Méid dhealraitheach (V) −0.05[3] Cuir in eagar ar Wikidata
Mais 1.3 M☉ Cuir in eagar ar Wikidata
Saobhdhiallas 87.5 mas[4] Cuir in eagar ar Wikidata
Dualghluaisne (diallas) −1,999.96 mas/y [4] Cuir in eagar ar Wikidata
Dualghluaisne (dronairde) −1,092.66 mas/y [4] Cuir in eagar ar Wikidata
Luas rothlaithe réaltach 4.2 km/s[5] Cuir in eagar ar Wikidata
Luas gathach −5.16 km/s[6] Cuir in eagar ar Wikidata
Imtharraingt dromchla 52 cm/s²[6] Cuir in eagar ar Wikidata
Dronairde (α) 14h 15m 39.6721s[7] Cuir in eagar ar Wikidata
Diallas (δ) 19° 10′ 56.673″[7] Cuir in eagar ar Wikidata
Miotalacht −0.57[8] Cuir in eagar ar Wikidata
Dath U-B colour (en) Aistrigh= 1.27 Cuir in eagar ar Wikidata
Lonrachas 215 solar luminosity (en) Aistrigh Cuir in eagar ar Wikidata
Compánaigh alf Boo B Cuir in eagar ar Wikidata
Cuid de Arcturus stream (en) Aistrigh, Spring Triangle (en) Aistrigh agus An tAoire Cuir in eagar ar Wikidata
Catalóga réalteolaíochta
HD 124897 (Henry Draper Catalogue (en) Aistrigh)
HIP 69673 (Hipparcos Catalogue (en) Aistrigh)
HR 5340 (Bright Star Catalogue (en) Aistrigh)
IRAS 14133+1925 (IRAS (en) Aistrigh)
SAO 100944 (Smithsonian Astrophysical Observatory Star Catalog (en) Aistrigh)
2MASS J14153968+1910558 (2MASS)
GJ 541 (Gliese Catalogue of Nearby Stars (en) Aistrigh)
AAVSO 1411+19 (American Association of Variable Star Observers (en) Aistrigh)
α Boo (Bayer designation (en) Aistrigh)
AG+19 1335 (Astronomische Gesellschaft Katalog (en) Aistrigh)
ASCC 870215 (All-sky Compiled Catalogue (en) Aistrigh)
BD+19 2777 (Durchmusterung (en) Aistrigh)
CSV 101433 (Catalogue of suspected variable stars (en) Aistrigh)
FK5 526 (FK5 (en) Aistrigh)
GC 19242 (Boss General Catalogue (en) Aistrigh)
GCRV 8341 (General Catalogue of Stellar Radial Velocities (en) Aistrigh)
HIC 69673 (Hipparcos Input Catalogue (en) Aistrigh)
IRC +20270 (Two-Micron Sky Survey (en) Aistrigh)
JP11 2486 (JP11 (en) Aistrigh)
LFT 1084 (Luyten Five-Tenths catalogue (en) Aistrigh)
LHS 48 (Luyten Half-Second catalogue (en) Aistrigh)
LSPM J1415+1910 (LSPM-NORTH catalog (en) Aistrigh)
LTT 14184 (Luyten Two-Tenths catalogue (en) Aistrigh)
N30 3229 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) Aistrigh)
NLTT 36756 (New Luyten Two-Tenths catalogue (en) Aistrigh)
NSV 6603 (New Catalogue of Suspected Variable Stars (en) Aistrigh)
PLX 3242 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PLX 3242.00 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PMC 90-93 376 (Tokyo Photoelectric Meridian Circle Catalog (en) Aistrigh)
PPM 130442 (PPM Star Catalogue (en) Aistrigh)
RAFGL 1693 (The Revised AFGL (RAFGL) catalogue (en) Aistrigh)
ROT 2044 (Catalogue of rotational velocities of the stars (en) Aistrigh)
SRS 30526 (Southern Reference Star Catalog (en) Aistrigh)
TD1 17351 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) Aistrigh)
TYC 1472-1436-1 (Tycho Catalogue (en) Aistrigh)
UBV 12551 (UBV Photoelectric Photometry Catalogue (en) Aistrigh)
UBV M 20076 (Photoelectric catalogue, magnitudes and colors of stars in the UBV and UCBV systems (en) Aistrigh)
uvby98 100124897 (uvbyβ Photoelectric Photometric Catalogue (en) Aistrigh)
YPAC 52 (Yunnan Photoelectric Astrolabe Catalogue (en) Aistrigh)
CCDM J14157+1911A (Catalog of Components of Double and Multiple Stars (en) Aistrigh)
WDS J14157+1911A (Washington Double Star Catalog (en) Aistrigh)
Ci 20 843 (Catalogue of proper motion stars (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 (Catalogs of proper-motion stars. I. Stars brighter than visual magnitude 15 and with annual proper motion of 1" or more (en) Aistrigh)
WEB 12132 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) Aistrigh)
16 Boo (Flamsteed designation (en) Aistrigh)
HDS 2003A
GEN# +1.00124897
SKY# 26028
TIC 459832522 (The TESS Input Catalog and Candidate Target List (en) Aistrigh)
GAT 1341
SV* ZI 1054
USNO-B1.0 1091-00221874
USNO 850
[HFE83] 1018
Arcturus
** HDS 2003A Cuir in eagar ar Wikidata

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.

Tagairtí storshonracha SIMBAD sonra

  1. Olin J. Eggen (1962). "Space-velocity vectors for 3483 stars with proper motion and radial velocity": 79. 
  2. Caroline Soubiran (Márta 2008). "Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants" (as An Béarla) (1): 91–101. doi:10.1051/0004-6361:20078788. 
  3. Ráite i: Catalogue of Stellar Photometry in Johnson's 11-color system. Teanga an tsaothair nó an ainm: An Béarla. Dáta foilsithe: 2002.
  4. 4.0 4.1 4.2 "Astrometric Studies of Aldebaran, Arcturus, Vega, the Hyades, and Other Regions" (as An Béarla) (Meitheamh 13, 2008) (1): 452–460. doi:10.1088/0004-6256/136/1/452. 
  5. David Latham (Nollaig 7, 2007). "Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity" (as An Béarla) (1): 209–231. doi:10.1088/0004-6256/135/1/209. 
  6. 6.0 6.1 Henrik Jönsson (Feabhra 8, 2017). "Abundances of disk and bulge giants from high-resolution optical spectra" (as An Béarla): 100–100. doi:10.1051/0004-6361/201629128. 
  7. 7.0 7.1 Floor van Leeuwen (2007). "Validation of the new Hipparcos reduction" (as An Béarla) (2): 653–664. doi:10.1051/0004-6361:20078357. 
  8. Richard J. Patterson (Nollaig 5, 2012). "Identifying contributions to the stellar halo from accreted, kicked-out, and in situ populations" (as An Béarla) (2): 161. doi:10.1088/0004-637X/761/2/161.