Betelgeuse

Ón Vicipéid, an chiclipéid shaor.
WD Bosca Sonraí Réad RéalteolaíochBetelgeuse
Position Alpha Ori.png
Cineálred supergiant (en) Aistrigh, réalta athraitheach, réalta athraitheach fhadtréimhseach agus réalta threorach
Cineál speictreach (réalta)M2I[1] Cuir in eagar ar Wikidata
RéaltbhuíonAn Bodach Cuir in eagar ar Wikidata
AoisJ2000.0 Cuir in eagar ar Wikidata
Saintréithe fisiceacha agus réaltmhéadracha
Fad ón Domhan548 ly [2] Cuir in eagar ar Wikidata
Ga955 ga gréine
887 ga gréine
1,000 ga gréine Cuir in eagar ar Wikidata
Dearbhmhéid−5.14 Cuir in eagar ar Wikidata
Méid dhealraitheach (V)0.42[3] Cuir in eagar ar Wikidata
Mais17.8 M☉[2] Cuir in eagar ar Wikidata
Saobhdhiallas6.55 mas[4] Cuir in eagar ar Wikidata
Dualghluaisne (diallas)11.3 mas/y [4] Cuir in eagar ar Wikidata
Dualghluaisne (dronairde)27.54 mas/y [4] Cuir in eagar ar Wikidata
Luas rothlaithe réaltach5 km/s Cuir in eagar ar Wikidata
Luas gathach21.91 km/s[5] Cuir in eagar ar Wikidata
Imtharraingt dromchla2 cm/s²[6] Cuir in eagar ar Wikidata
Dronairde (α)5h 55m 10.3054s[4] Cuir in eagar ar Wikidata
Diallas (δ)7° 24′ 25.4304″[4] Cuir in eagar ar Wikidata
Miotalacht0.01[6] Cuir in eagar ar Wikidata
DathB-V colour (en) Aistrigh= 1.86 Cuir in eagar ar Wikidata
Lonrachas60,000 solar luminosity (en) Aistrigh Cuir in eagar ar Wikidata
Aois measta10,000,000 bliain Cuir in eagar ar Wikidata
Cuid deWinter Triangle (en) Aistrigh Cuir in eagar ar Wikidata
Catalóga réalteolaíochta
SAO 113271 (Smithsonian Astrophysical Observatory Star Catalog (en) Aistrigh)
GSC 00129-01873 (Guide Star Catalog (en) Aistrigh)
2MASS J05551028+0724255 (2MASS)
HD 39801 (Henry Draper Catalogue (en) Aistrigh)
HIP 27989 (Hipparcos Catalogue (en) Aistrigh)
HR 2061 (Harvard Revised Photometry Catalogue (en) Aistrigh, Bright Star Catalogue (en) Aistrigh)
IRAS 05524+0723 (IRAS (en) Aistrigh)
AAVSO 0549+07 (American Association of Variable Star Observers (en) Aistrigh)
α Ori (Bayer designation (en) Aistrigh)
58 Ori (Flamsteed designation (en) Aistrigh)
ADS 4506 AP (Aitken Double Star Catalogue (en) Aistrigh)
AG+07 681 (Astronomische Gesellschaft Katalog (en) Aistrigh)
BD+07 1055 (Durchmusterung (en) Aistrigh)
CCDM J05552+0724AP (Catalog of Components of Double and Multiple Stars (en) Aistrigh)
CSI+07 1055 1 (Catalog of Stellar Identifications (en) Aistrigh)
FK5 224 (FK5 (en) Aistrigh)
GC 7451 (Boss General Catalogue (en) Aistrigh)
GCRV 3679 (General Catalogue of Stellar Radial Velocities (en) Aistrigh)
HIC 27989 (Hipparcos Input Catalogue (en) Aistrigh)
IRC +10100 (Two-Micron Sky Survey (en) Aistrigh)
JP11 1282 (JP11 (en) Aistrigh)
N30 1266 (Catalog of 5,268 Standard Stars Based on the Normal System N30 (en) Aistrigh)
PLX 1362 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PLX 1362.00 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PMC 90-93 162 (Tokyo Photoelectric Meridian Circle Catalog (en) Aistrigh)
PPM 149643 (PPM Star Catalogue (en) Aistrigh)
RAFGL 836 (The Revised AFGL (RAFGL) catalogue (en) Aistrigh)
TD1 5587 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) Aistrigh)
TYC 129-1873-1 (Tycho Catalogue (en) Aistrigh)
UBV 21314 (UBV Photoelectric Photometry Catalogue (en) Aistrigh)
alf Ori (General Catalogue of Variable Stars (en) Aistrigh)
WDS J05552+0724A (Washington Double Star Catalog (en) Aistrigh)
WDS J05552+0724Aa,Ab (Washington Double Star Catalog (en) Aistrigh)
WDS J05552+0724Aa,Ac (Washington Double Star Catalog (en) Aistrigh)
YZ 7 2503 (Yale Observatory Zone Catalog (en) Aistrigh)
[LFO93] 0552+07 (CO and HCN observations of circumstellar envelopes. A catalogue - mass loss rates and distributions (en) Aistrigh)
WEB 5485 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) Aistrigh) Cuir in eagar ar Wikidata

An naoú réalta is gile sa spéir san oíche, agus an dara réalta is gile i réaltbhuíon Oríon (nó an Bhodaigh) is ea Betelgeuse, ar a dtugtar freisin, de réir ainmniú Bayer, Alfa Orionis (α Orionis, α Ori). De ghnáth, ní bhíonn sé níos gile ná a chomharsa Rigel (Beta Orionis). Is réalta athraitheach leathrialta é agus athraíonn a mhéid idir 0.2 agus 1.2. Bíonn dath scothdhearg ar leighligh aige. Marcáileann an réalta an rinn uachtarach ar dheis sa Triantán Geimhridh agus lár an Heicseagáin Gheimhridh.

  1. Bertrand Plez (Lúnasa 2005). "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not as Cool as We Thought" (as an Béarla) (2): 973–985. doi:10.1086/430901. 
  2. 2.0 2.1 DOI: 10.3847/1538-4357/abb8db. Teideal: Standing on the Shoulders of Giants: New Mass and Distance Estimates for Betelgeuse through Combined Evolutionary, Asteroseismic, and Hydrodynamic Simulations with MESA.
  3. Ráite i: The HYG Database.
  4. 4.0 4.1 4.2 4.3 4.4 Floor van Leeuwen (2007). "Validation of the new Hipparcos reduction" (as an Béarla) (2): 653–664. doi:10.1051/0004-6361:20078357. 
  5. B. Famaey (Eanáir 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data" (as an Béarla) (1): 165–186. doi:10.1051/0004-6361:20041272. 
  6. 6.0 6.1 "The atmospheric parameters and spectral interpolator for the MILES stars" (as an Béarla) (Iúil 2011): 165–165. doi:10.1051/0004-6361/201116769.