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- 18_Aquilae abstract "18 Aquilae is the Flamsteed designation for a triple star system in the constellation Aquila. It has the variable star designation Y Aquilae and an apparent visual magnitude of 5.07. The distance to this system can be estimated from the annual parallax shift of 6.43 mas, yielding a value of around 510 light-years (160 parsecs) away from Earth.The inner pair of stars in this system form a spectroscopic binary with a combined magnitude of 5.44 and an orbital period of 1.302 days. The primary component is a giant star with a stellar classification of B8 III. Because the orbital plane is inclined near the line of sight, two form an eclipsing binary system. The eclipse of the primary component causes a 0.04 drop in magnitude, while the eclipse of the secondary results in a decrease of 0.03. At an angular separation of 0.310 arcseconds is the magnitude 6.39 tertiary component. This system has a high peculiar velocity of 29.7 ± 3.9 km/s relative to the neighboring stars.".
- 18_Aquilae wikiPageExternalLink AladinPreview?-c=19+06+58.6032%2B11+04+16.423&ident=V*+Y+Aql&submit=Aladin+previewer.
- 18_Aquilae wikiPageExternalLink VizieR-S?HR%207248.
- 18_Aquilae wikiPageID "2902895".
- 18_Aquilae wikiPageRevisionID "601531050".
- 18_Aquilae appmagV "5.072".
- 18_Aquilae bV "-0.08".
- 18_Aquilae class "B8 III".
- 18_Aquilae constell Aquila_(constellation).
- 18_Aquilae epoch "J2000".
- 18_Aquilae hasPhotoCollection 18_Aquilae.
- 18_Aquilae pError "0.79".
- 18_Aquilae parallax "6.43".
- 18_Aquilae propMoDec "-32.11".
- 18_Aquilae propMoRa "-0.89".
- 18_Aquilae radialV "-18.6".
- 18_Aquilae rotationalVelocity "50".
- 18_Aquilae uB "-0.44".
- 18_Aquilae variable "Ellipsoidal Variable".
- 18_Aquilae subject Category:Aquila_(constellation).
- 18_Aquilae subject Category:B-type_giants.
- 18_Aquilae subject Category:Ellipsoidal_variables.
- 18_Aquilae subject Category:Flamsteed_objects.
- 18_Aquilae subject Category:Henry_Draper_Catalogue_objects.
- 18_Aquilae subject Category:Objects_named_with_variable_star_designations.
- 18_Aquilae subject Category:Spectroscopic_binaries.
- 18_Aquilae subject Category:Triple_star_systems.
- 18_Aquilae type CelestialBody.
- 18_Aquilae type Star.
- 18_Aquilae type Thing.
- 18_Aquilae comment "18 Aquilae is the Flamsteed designation for a triple star system in the constellation Aquila. It has the variable star designation Y Aquilae and an apparent visual magnitude of 5.07. The distance to this system can be estimated from the annual parallax shift of 6.43 mas, yielding a value of around 510 light-years (160 parsecs) away from Earth.The inner pair of stars in this system form a spectroscopic binary with a combined magnitude of 5.44 and an orbital period of 1.302 days.".
- 18_Aquilae label "18 Aquilae".
- 18_Aquilae label "18 Aquilae".
- 18_Aquilae label "18 Aquilae".
- 18_Aquilae sameAs 18_Aquilae.
- 18_Aquilae sameAs m.08bd_h.
- 18_Aquilae sameAs Q2400410.
- 18_Aquilae sameAs Q2400410.
- 18_Aquilae wasDerivedFrom 18_Aquilae?oldid=601531050.
- 18_Aquilae isPrimaryTopicOf 18_Aquilae.
- 18_Aquilae name "18 Aquilae".