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- Sigma_Arietis abstract "Sigma Arietis (σ Ari, σ Arietis) is the Bayer designation for a star in the northern constellation of Aries. It has an apparent visual magnitude of +5.52, which is bright enough for the star to be seen with the naked eye from dark suburban skies. Based upon an annual measured parallax shift of 6.60 ± 0.32 mas, it is approximately 494 light-years (151 parsecs) distant from the Earth.Sigma Arietis is a B-type main sequence star with a stellar classification of B7 V. This is a large star with three times the radius of the Sun and 3.8 times the Sun's mass. It shines around 301 times as brightly as the Sun, with this energy being radiated into space from its outer atmosphere at a scorching hot effective temperature of 13,121 K. It is this heat that gives the star the blue-white hue of a B-type star. Sigma Arietis is spinning at a rapid clip, with a projected rotational velocity of 165 km/s. It is a probable member of the Cas-Tau OB association of stars that share a common motion through space.".
- Sigma_Arietis thumbnail Aries_IAU.svg?width=300.
- Sigma_Arietis wikiPageExternalLink AladinPreview?-c=02+51+29.5869%2B15+04+55.454&ident=*+sig+Ari&submit=Aladin+previewer.
- Sigma_Arietis wikiPageExternalLink VizieR-S?HR%20847.
- Sigma_Arietis wikiPageID "2879990".
- Sigma_Arietis wikiPageRevisionID "593048651".
- Sigma_Arietis appmagV "+5.52".
- Sigma_Arietis bV "–0.09".
- Sigma_Arietis class "B7 V".
- Sigma_Arietis constell Aries_(constellation).
- Sigma_Arietis epoch Epoch_(astronomy).
- Sigma_Arietis equinox "J2000.0".
- Sigma_Arietis hasPhotoCollection Sigma_Arietis.
- Sigma_Arietis luminosity "301".
- Sigma_Arietis pError "0.32".
- Sigma_Arietis parallax "6.6".
- Sigma_Arietis propMoDec "–23.68".
- Sigma_Arietis propMoRa "+30.13".
- Sigma_Arietis radialV "+17.0".
- Sigma_Arietis radius "3".
- Sigma_Arietis rotationalVelocity "165".
- Sigma_Arietis temperature "13121".
- Sigma_Arietis uB "–0.43".
- Sigma_Arietis subject Category:Aries_(constellation).
- Sigma_Arietis subject Category:B-type_main-sequence_stars.
- Sigma_Arietis subject Category:Bayer_objects.
- Sigma_Arietis subject Category:Flamsteed_objects.
- Sigma_Arietis subject Category:Henry_Draper_Catalogue_objects.
- Sigma_Arietis subject Category:Hipparcos_objects.
- Sigma_Arietis type B-typeMainSequenceStars.
- Sigma_Arietis type BayerObjects.
- Sigma_Arietis type CelestialBody109239740.
- Sigma_Arietis type FlamsteedObjects.
- Sigma_Arietis type HIPObjects.
- Sigma_Arietis type HenryDraperCatalogueObjects.
- Sigma_Arietis type NaturalObject100019128.
- Sigma_Arietis type Object100002684.
- Sigma_Arietis type PhysicalEntity100001930.
- Sigma_Arietis type Star109444100.
- Sigma_Arietis type Whole100003553.
- Sigma_Arietis type CelestialBody.
- Sigma_Arietis type Star.
- Sigma_Arietis type PhysicalBody.
- Sigma_Arietis comment "Sigma Arietis (σ Ari, σ Arietis) is the Bayer designation for a star in the northern constellation of Aries. It has an apparent visual magnitude of +5.52, which is bright enough for the star to be seen with the naked eye from dark suburban skies. Based upon an annual measured parallax shift of 6.60 ± 0.32 mas, it is approximately 494 light-years (151 parsecs) distant from the Earth.Sigma Arietis is a B-type main sequence star with a stellar classification of B7 V.".
- Sigma_Arietis label "Sigma Arietis".
- Sigma_Arietis label "Sigma Arietis".
- Sigma_Arietis label "Sigma Arietis".
- Sigma_Arietis label "左更四".
- Sigma_Arietis sameAs Sigma_Arietis.
- Sigma_Arietis sameAs Sigma_Arietis.
- Sigma_Arietis sameAs m.088r6f.
- Sigma_Arietis sameAs Q2608330.
- Sigma_Arietis sameAs Q2608330.
- Sigma_Arietis sameAs Sigma_Arietis.
- Sigma_Arietis wasDerivedFrom Sigma_Arietis?oldid=593048651.
- Sigma_Arietis depiction Aries_IAU.svg.
- Sigma_Arietis isPrimaryTopicOf Sigma_Arietis.
- Sigma_Arietis name "Sigma Arietis".