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- 7_Arietis abstract "7 Arietis is the Flamsteed designation for a binary star system in the northern constellation of Aries. The pair have a combined apparent visual magnitude of 5.76, making it faintly visible to the naked eye from dark suburban skies. Based upon an annual parallax shift of 5.85 mas, it is approximately 560 light-years (170 parsecs) distant from the Earth, give or take a 40 light-year margin of error.This is an eclipsing binary system with a period of 47.9 days and has the variable star designation RR Arietis. During each eclipse of the primary star, the magnitude of the system decreases by 0.40. The eclipse of the secondary reduces the magnitude by 0.35. The primary component of the system is an evolved giant star with a stellar classification of K1 III. The measured angular diameter of this star is 1.14 ± 0.02 mas. At the estimated distance of 7 Arietis, this yields a physical size of about 21 times the radius of the Sun.".
- 7_Arietis wikiPageExternalLink AladinPreview?-c=01+55+51.0397%2B23+34+38.358&ident=V*+RR+Ari&submit=Aladin+previewer.
- 7_Arietis wikiPageExternalLink VizieR-S?HR%20559.
- 7_Arietis wikiPageID "2902800".
- 7_Arietis wikiPageRevisionID "606034856".
- 7_Arietis appmagV "5.76".
- 7_Arietis bV "+1.185".
- 7_Arietis class "K1 III".
- 7_Arietis constell Aries_(constellation).
- 7_Arietis epoch "J2000".
- 7_Arietis hasPhotoCollection 7_Arietis.
- 7_Arietis pError "0.46".
- 7_Arietis parallax "5.85".
- 7_Arietis propMoDec "-10.05".
- 7_Arietis propMoRa "+11.44".
- 7_Arietis radialV "+15.95".
- 7_Arietis radius "21".
- 7_Arietis uB "+1.04".
- 7_Arietis subject Category:Aries_(constellation).
- 7_Arietis subject Category:Eclipsing_binaries.
- 7_Arietis subject Category:Flamsteed_objects.
- 7_Arietis subject Category:Henry_Draper_Catalogue_objects.
- 7_Arietis subject Category:Hipparcos_objects.
- 7_Arietis subject Category:K-type_giants.
- 7_Arietis subject Category:Objects_named_with_variable_star_designations.
- 7_Arietis type CelestialBody.
- 7_Arietis type Star.
- 7_Arietis type PhysicalBody.
- 7_Arietis comment "7 Arietis is the Flamsteed designation for a binary star system in the northern constellation of Aries. The pair have a combined apparent visual magnitude of 5.76, making it faintly visible to the naked eye from dark suburban skies.".
- 7_Arietis label "7 Arietis".
- 7_Arietis label "7 Arietis".
- 7_Arietis label "白羊座7".
- 7_Arietis sameAs 7_Arietis.
- 7_Arietis sameAs m.08bdfz.
- 7_Arietis sameAs Q2402984.
- 7_Arietis sameAs Q2402984.
- 7_Arietis wasDerivedFrom 7_Arietis?oldid=606034856.
- 7_Arietis isPrimaryTopicOf 7_Arietis.
- 7_Arietis name "7 Arietis".