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- 26_Aquilae abstract "26 Aquilae is the Flamsteed designation for a binary star system in the equatorial constellation of Aquila. It has an apparent visual magnitude of 5.00, which means it is faintly visible to the naked eye. As the Earth orbits the Sun, this star system undergoes a parallax shift of 21.15 mas. This means it is located at a distance of approximately 154 light-years (47 parsecs) from Earth, give or take a 3 light-year margin of error.This is a single-lined spectroscopic binary system, meaning that the presence of an orbiting companion is revealed through shifts in the spectrum of the primary star. The pair orbit each other with a period of 266.544 days at a high eccentricity of 0.833. Little is known about this companion, although its mass can be estimated as 140% of the mass of the Sun.The primary component has a stellar classification of G8 III-IV. The luminosity class of III-IV indicates the spectrum resembles that of a star part way between the subgiant and giant stages of its evolution. It has more than three times the mass of the Sun and six times the Sun's radius. It is radiating 21 times as much luminosity as the Sun from this enlarged outer envelope at an effective temperature of 4,940 K. At this heat, the star glows with the characteristic yellow hue of a G-type star.".
- 26_Aquilae thumbnail Aquila_IAU.svg?width=300.
- 26_Aquilae wikiPageExternalLink AladinPreview?-c=HD+181391&ident=HD+181391&submit=Aladin+previewer.
- 26_Aquilae wikiPageExternalLink VizieR-S?CCDM%20J19205-0524A.
- 26_Aquilae wikiPageExternalLink VizieR-S?HR%207333.
- 26_Aquilae wikiPageID "2902888".
- 26_Aquilae wikiPageRevisionID "601557450".
- 26_Aquilae appmagV "5".
- 26_Aquilae bV "+0.936".
- 26_Aquilae class "G8 III-IV".
- 26_Aquilae component "26".
- 26_Aquilae constell Aquila_(constellation).
- 26_Aquilae eccentricity "0.833".
- 26_Aquilae epoch "J2000".
- 26_Aquilae gravity "3.2".
- 26_Aquilae hasPhotoCollection 26_Aquilae.
- 26_Aquilae k "29.86".
- 26_Aquilae luminosity "21".
- 26_Aquilae mass "3.2".
- 26_Aquilae metalFe "–0.21".
- 26_Aquilae pError "0.39".
- 26_Aquilae parallax "21.15".
- 26_Aquilae periodUnitless "2.3029401599999998E7".
- 26_Aquilae propMoDec "+46.20".
- 26_Aquilae propMoRa "+113.13".
- 26_Aquilae rI "0.5".
- 26_Aquilae radius "6".
- 26_Aquilae rotationalVelocity "1.3".
- 26_Aquilae temperature "4940".
- 26_Aquilae uB "+0.634".
- 26_Aquilae subject Category:Aquila_(constellation).
- 26_Aquilae subject Category:Bayer_objects.
- 26_Aquilae subject Category:Flamsteed_objects.
- 26_Aquilae subject Category:Henry_Draper_Catalogue_objects.
- 26_Aquilae subject Category:Spectroscopic_binaries.
- 26_Aquilae type CelestialBody.
- 26_Aquilae type Star.
- 26_Aquilae type PhysicalBody.
- 26_Aquilae comment "26 Aquilae is the Flamsteed designation for a binary star system in the equatorial constellation of Aquila. It has an apparent visual magnitude of 5.00, which means it is faintly visible to the naked eye. As the Earth orbits the Sun, this star system undergoes a parallax shift of 21.15 mas.".
- 26_Aquilae label "26 Aquilae".
- 26_Aquilae label "26 Aquilae".
- 26_Aquilae label "26 Aquilae".
- 26_Aquilae label "天鷹座26".
- 26_Aquilae sameAs 26_Aquilae.
- 26_Aquilae sameAs 26_Aquilae.
- 26_Aquilae sameAs m.08bdz3.
- 26_Aquilae sameAs Q2607786.
- 26_Aquilae sameAs Q2607786.
- 26_Aquilae wasDerivedFrom 26_Aquilae?oldid=601557450.
- 26_Aquilae depiction Aquila_IAU.svg.
- 26_Aquilae isPrimaryTopicOf 26_Aquilae.
- 26_Aquilae name "26 Aquilae".