Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Sigma_Aquilae> ?p ?o. }
Showing items 1 to 72 of
72
with 100 items per page.
- Sigma_Aquilae abstract "Sigma Aquilae (σ Aql, σ Aquilae) is the Bayer designation for a binary star system in the equatorial constellation of Aquila. The baseline apparent magnitude of the pair is +5.17, which, according to the Bortle Dark-Sky Scale, is bright enough to be seen with the naked eye from suburban skies. Because of the Earth's orbit about the Sun, this system has an annual parallax shift of 4.18 mas. This provides a distance estimate of approximately 780 light-years (240 parsecs).Sigma Aquilae is a double-lined spectroscopic binary system consisting of two massive B-type main sequence stars; each has a stellar classification of B3 V. They are detached components, which means the two stars are sufficiently distant from each other that neither fills its Roche lobe.Because the orbital plane lies close to the line of sight with the Earth, they form a Beta Lyrae-type eclipsing binary variable star system. The brightness of the pair decreases during each eclipse, which occurs with a frequency determined by their orbital period of 1.95026 days. During the eclipse of the primary component the net magnitude decreases by 0.20; the eclipse of the secondary component results in a magnitude decrease of 0.10.".
- Sigma_Aquilae thumbnail Aquila_IAU.svg?width=300.
- Sigma_Aquilae wikiPageExternalLink AladinPreview?-c=V*+sig+Aql&ident=V*+sig+Aql&submit=Aladin+previewer.
- Sigma_Aquilae wikiPageExternalLink VizieR-S?CCDM%20J19392%2b0524A.
- Sigma_Aquilae wikiPageExternalLink VizieR-S?HR%207474.
- Sigma_Aquilae wikiPageID "2870287".
- Sigma_Aquilae wikiPageRevisionID "601549988".
- Sigma_Aquilae ageMyr "140".
- Sigma_Aquilae appmagV "+5.17".
- Sigma_Aquilae bV "+0.03".
- Sigma_Aquilae component "σ Aql A".
- Sigma_Aquilae component "σ Aql B".
- Sigma_Aquilae constell Aquila_(constellation).
- Sigma_Aquilae epoch "J2000".
- Sigma_Aquilae hasPhotoCollection Sigma_Aquilae.
- Sigma_Aquilae luminosity "1862".
- Sigma_Aquilae luminosity "524".
- Sigma_Aquilae pError "0.4".
- Sigma_Aquilae parallax "4.18".
- Sigma_Aquilae propMoDec "–4.26".
- Sigma_Aquilae propMoRa "+3.97".
- Sigma_Aquilae radialV "–4.8".
- Sigma_Aquilae rotationalVelocity "120".
- Sigma_Aquilae temperature "15848".
- Sigma_Aquilae temperature "18493".
- Sigma_Aquilae uB "–0.60".
- Sigma_Aquilae variable Beta_Lyrae_variable.
- Sigma_Aquilae subject Category:Aquila_(constellation).
- Sigma_Aquilae subject Category:B-type_main-sequence_stars.
- Sigma_Aquilae subject Category:Bayer_objects.
- Sigma_Aquilae subject Category:Beta_Lyrae_variables.
- Sigma_Aquilae subject Category:Binary_stars.
- Sigma_Aquilae subject Category:Eclipsing_binaries.
- Sigma_Aquilae subject Category:Henry_Draper_Catalogue_objects.
- Sigma_Aquilae subject Category:Spectroscopic_binaries.
- Sigma_Aquilae type B-typeMainSequenceStars.
- Sigma_Aquilae type BayerObjects.
- Sigma_Aquilae type BetaLyraeVariables.
- Sigma_Aquilae type BinaryStar109221070.
- Sigma_Aquilae type BinaryStars.
- Sigma_Aquilae type CelestialBody109239740.
- Sigma_Aquilae type EclipsingBinaries.
- Sigma_Aquilae type HenryDraperCatalogueObjects.
- Sigma_Aquilae type NaturalObject100019128.
- Sigma_Aquilae type Object100002684.
- Sigma_Aquilae type PhysicalEntity100001930.
- Sigma_Aquilae type SpectroscopicBinaries.
- Sigma_Aquilae type Star109444100.
- Sigma_Aquilae type Thing100002452.
- Sigma_Aquilae type Variable109468959.
- Sigma_Aquilae type Whole100003553.
- Sigma_Aquilae type CelestialBody.
- Sigma_Aquilae type Star.
- Sigma_Aquilae type PhysicalBody.
- Sigma_Aquilae comment "Sigma Aquilae (σ Aql, σ Aquilae) is the Bayer designation for a binary star system in the equatorial constellation of Aquila. The baseline apparent magnitude of the pair is +5.17, which, according to the Bortle Dark-Sky Scale, is bright enough to be seen with the naked eye from suburban skies. Because of the Earth's orbit about the Sun, this system has an annual parallax shift of 4.18 mas.".
- Sigma_Aquilae label "Sigma Aquilae".
- Sigma_Aquilae label "Sigma Aquilae".
- Sigma_Aquilae label "Sigma Aquilae".
- Sigma_Aquilae label "Sigma Aquilae".
- Sigma_Aquilae label "天鷹座σ".
- Sigma_Aquilae sameAs Sigma_Aquilae.
- Sigma_Aquilae sameAs Sigma_Aquilae.
- Sigma_Aquilae sameAs Sigma_Aquilae.
- Sigma_Aquilae sameAs Sigma_Aquilae.
- Sigma_Aquilae sameAs m.0881p9.
- Sigma_Aquilae sameAs Q2545912.
- Sigma_Aquilae sameAs Q2545912.
- Sigma_Aquilae sameAs Sigma_Aquilae.
- Sigma_Aquilae wasDerivedFrom Sigma_Aquilae?oldid=601549988.
- Sigma_Aquilae depiction Aquila_IAU.svg.
- Sigma_Aquilae isPrimaryTopicOf Sigma_Aquilae.
- Sigma_Aquilae name "Sigma Aquilae".
