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- Eta_Scorpii abstract "Eta Scorpii (η Sco, η Scorpii) is a star in the southern zodiac constellation of Scorpius. With an apparent visual magnitude of 3.33, this is one of the brighter members of the Scorpius and is the furthest south of the constellation stars with a Bayer designation. The distance to this star can be estimated using parallax measurements, yielding a value of 73.5 light-years (22.5 parsecs) with a 0.4% margin of error.The stellar classification of this star has undergone some revision over time, with the star being classified anywhere from an F-type main sequence star to a giant star. In 2006, the NStars program assigned it a class of F5 IV, where the luminosity class of 'IV' indicates this is a subgiant star that is exhausting the supply of hydrogen at its core and is in the process of evolving into a giant star. It has around 175% of the Sun's mass with an estimated age of 1.1 billion years. The star is radiating about 18 times the luminosity of the Sun from its outer atmosphere at an effective temperature of 6,519 K. It is this heat that gives it a yellow-white hue that is typical for an F-type star.Eta Scorpii is rotating rapidly, with a projected rotational velocity of 150 km s–1. This is causing the star to spin on its axis with a period of less than a day. It is an X-ray emitter with its stellar corona giving off an X-ray luminosity of 4.4 × 1028 ergs s–1. In 1991 it was identified as a possible barium star, as it displays an enhanced abundance of the element barium in its spectrum. Overall, the abundance of elements other than hydrogen and helium, what astronomers term the star's metallicity, is similar to the abundance in the Sun.".
- Eta_Scorpii thumbnail Scorpius_IAU.svg?width=300.
- Eta_Scorpii wikiPageID "2664453".
- Eta_Scorpii wikiPageRevisionID "591233198".
- Eta_Scorpii absmagV "+1.58".
- Eta_Scorpii ageGyr "1.1".
- Eta_Scorpii appmagV "3.33".
- Eta_Scorpii bV "+0.41".
- Eta_Scorpii class "F5 IV".
- Eta_Scorpii constell Scorpius.
- Eta_Scorpii epoch "J2000".
- Eta_Scorpii gravity "3.1".
- Eta_Scorpii hasPhotoCollection Eta_Scorpii.
- Eta_Scorpii luminosity "17.7".
- Eta_Scorpii mass "1.75".
- Eta_Scorpii metalFe "0.05".
- Eta_Scorpii pError "0.16".
- Eta_Scorpii parallax "44.39".
- Eta_Scorpii propMoDec "–288.55".
- Eta_Scorpii propMoRa "+24.47".
- Eta_Scorpii radialV "–27.0".
- Eta_Scorpii rotationalVelocity "150".
- Eta_Scorpii temperature "6519".
- Eta_Scorpii uB "+0.09".
- Eta_Scorpii subject Category:Bayer_objects.
- Eta_Scorpii subject Category:F-type_giants.
- Eta_Scorpii subject Category:Scorpius_(constellation).
- Eta_Scorpii type Animal100015388.
- Eta_Scorpii type BayerObjects.
- Eta_Scorpii type F-typeGiants.
- Eta_Scorpii type Giant101323781.
- Eta_Scorpii type LivingThing100004258.
- Eta_Scorpii type Object100002684.
- Eta_Scorpii type Organism100004475.
- Eta_Scorpii type PhysicalEntity100001930.
- Eta_Scorpii type Whole100003553.
- Eta_Scorpii type CelestialBody.
- Eta_Scorpii type Star.
- Eta_Scorpii type PhysicalBody.
- Eta_Scorpii comment "Eta Scorpii (η Sco, η Scorpii) is a star in the southern zodiac constellation of Scorpius. With an apparent visual magnitude of 3.33, this is one of the brighter members of the Scorpius and is the furthest south of the constellation stars with a Bayer designation.".
- Eta_Scorpii label "Eta Scorpii".
- Eta_Scorpii label "Eta Scorpii".
- Eta_Scorpii label "Eta Scorpii".
- Eta_Scorpii label "Eta Scorpii".
- Eta_Scorpii label "Eta Scorpii".
- Eta_Scorpii label "さそり座イータ星".
- Eta_Scorpii sameAs Eta_Scorpii.
- Eta_Scorpii sameAs Eta_Scorpii.
- Eta_Scorpii sameAs Eta_Scorpii.
- Eta_Scorpii sameAs さそり座イータ星.
- Eta_Scorpii sameAs Eta_Scorpii.
- Eta_Scorpii sameAs m.07wby3.
- Eta_Scorpii sameAs Q427630.
- Eta_Scorpii sameAs Q427630.
- Eta_Scorpii sameAs Eta_Scorpii.
- Eta_Scorpii wasDerivedFrom Eta_Scorpii?oldid=591233198.
- Eta_Scorpii depiction Scorpius_IAU.svg.
- Eta_Scorpii isPrimaryTopicOf Eta_Scorpii.
- Eta_Scorpii name "Eta Scorpii".