Mira

Ón Vicipéid, an chiclipéid shaor.
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WD Bosca Sonraí Réad RéalteolaíochMira
Mira 1997.jpg
Cineál déréalta, réalta, réalta athraitheach, réalta Mira Ceti, sub-millimetric source (en) Aistrigh, astrophysical maser (en) Aistrigh, foinse infridhearg, réalta líne astúcháin agus réalta ard-dualghluaisne
Cineál speictreach (réalta) M5-9IIIe+DA[1] Cuir in eagar ar Wikidata
Fionnachtaí David Fabricius (en) Aistrigh Cuir in eagar ar Wikidata
Dáta fionnachtana Lúnasa 13, 1596
Réaltbhuíon An Míol Mór Cuir in eagar ar Wikidata
Aois J2000.0 Cuir in eagar ar Wikidata
Saintréithe fisiceacha agus réaltmhéadracha
Fad ón Domhan 92 pc [2] Cuir in eagar ar Wikidata
Méid dhealraitheach (V) 6.53[3] Cuir in eagar ar Wikidata
Mais 1.2 M☉[4] Cuir in eagar ar Wikidata
Saobhdhiallas 10.91 mas[5] Cuir in eagar ar Wikidata
Dualghluaisne (diallas) −237.36 mas/y [5] Cuir in eagar ar Wikidata
Dualghluaisne (dronairde) 9.33 mas/y [5] Cuir in eagar ar Wikidata
Luas gathach 63.5 km/s[6] Cuir in eagar ar Wikidata
Dronairde (α) 2h 19m 20.7921s[5] Cuir in eagar ar Wikidata
Diallas (δ) -2° -58′ -39.4956″[5] Cuir in eagar ar Wikidata
Aois measta 6 gigaannum (en) Aistrigh Cuir in eagar ar Wikidata
Le cuid
Catalóga réalteolaíochta
GSC 04693-01144 (Guide Star Catalog (en) Aistrigh)
HD 14386 (Henry Draper Catalogue (en) Aistrigh)
HIP 10826 (Hipparcos Catalogue (en) Aistrigh)
HR 681 (Bright Star Catalogue (en) Aistrigh)
IRAS 02168-0312 (IRAS (en) Aistrigh)
SAO 129825 (Smithsonian Astrophysical Observatory Star Catalog (en) Aistrigh)
AAVSO 0214-03 (American Association of Variable Star Observers (en) Aistrigh)
ADS 1778 AP (Aitken Double Star Catalogue (en) Aistrigh)
2MASS J02192081-0258393 (2MASS)
ASAS J021920-0258.6 (All Sky Automated Survey (en) Aistrigh)
BD-03 353 (Durchmusterung (en) Aistrigh)
CCDM J02194-0258AP (Catalog of Components of Double and Multiple Stars (en) Aistrigh)
CSI-03 353 1 (Catalog of Stellar Identifications (en) Aistrigh)
GC 2796 (Boss General Catalogue (en) Aistrigh)
GCRV 1301 (General Catalogue of Stellar Radial Velocities (en) Aistrigh)
HIC 10826 (Hipparcos Input Catalogue (en) Aistrigh)
IRC +00030 (Two-Micron Sky Survey (en) Aistrigh)
JP11 625 (JP11 (en) Aistrigh)
LTT 1179 (Luyten Two-Tenths catalogue (en) Aistrigh)
NLTT 7657 (New Luyten Two-Tenths catalogue (en) Aistrigh)
PLX 477 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PLX 477.00 (General Catalogue of Trigonometric Stellar Parallaxes (en) Aistrigh)
PPM 184482 (PPM Star Catalogue (en) Aistrigh)
RAFGL 318 (The Revised AFGL (RAFGL) catalogue (en) Aistrigh)
TD1 1361 (TD1 Catalog of Stellar Ultraviolet Fluxes (en) Aistrigh)
TYC 4693-1144-1 (Tycho Catalogue (en) Aistrigh)
UBV 21604 (UBV Photoelectric Photometry Catalogue (en) Aistrigh)
UCAC3 175-6614 (Third USNO CCD Astrograph Catalog (en) Aistrigh)
UCAC4 436-002922 (Fourth USNO CCD Astrograph Catalog (en) Aistrigh)
omi Cet (General Catalogue of Variable Stars (en) Aistrigh)
WDS J02193-0259Aa,Ab (Washington Double Star Catalog (en) Aistrigh)
YZ 93 562 (Yale Observatory Zone Catalog (en) Aistrigh)
DO 430 (Dearborn Observatory Catalogue (en) Aistrigh)
ASAS J021921-0258.8 (All Sky Automated Survey (en) Aistrigh)
[LFO93] 0216-03 (CO and HCN observations of circumstellar envelopes. A catalogue - mass loss rates and distributions (en) Aistrigh)
WEB 2282 (Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Radial velocities: The Wilson-Evans-Batten catalogue (en) Aistrigh)
ο Cet (Bayer designation (en) Aistrigh)
68 Cet (Flamsteed designation (en) Aistrigh) Cuir in eagar ar Wikidata

Réalta i réaltbhuíon an Mhíl Mhóir a ndearnadh taifeadadh uirthi den chéad uair i 1596, ach a aithníodh mar réalta athraitheach i 1638. Fathachréalta dhearg a athraíonn le tréimhse 331 lá ó mhéid 10 suas go dtí 2. Bhain sí méid 1.2 amach i 1779, i measc an 20 réalta is gile sa spéir. Is í an chéad shampla de réaltaí ar leith iad athraithigh Mira, réaltaí athraitheacha fadtréimhseacha le tréimhsí chomh fada le míonna nó níos mó.

  1. Ráite i: General Catalogue of Stellar Spectral Classifications (Version 2013-Jul). Leathanach: 2023. Dáta foilsithe: 2014.
  2. URL tagartha: http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&HIP=10826.
  3. Ráite i: The HYG Database.
  4. "Kinematics and ages of Mira variables in the greater solar neighborhood" (as An Béarla) (Nollaig 1983): 225–239. doi:10.1086/161527. 
  5. 5.0 5.1 5.2 5.3 5.4 Floor van Leeuwen (2007). "Validation of the new Hipparcos reduction" (as An Béarla) (2): 653–664. doi:10.1051/0004-6361:20078357. 
  6. "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ∼55000 stars and mean radial velocities of 516 Galactic open clusters and associations" (Samhain 2007) (9): 889-896. doi:10.1002/ASNA.200710776.