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- Gamma_Ursae_Majoris abstract "Gamma Ursae Majoris (Gamma UMa, γ Ursae Majoris, γ UMa) is a star in the constellation Ursa Major It has the traditional name Phad, or Phecda. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified. Based upon parallax measurements with the Hipparcos astrometry satellite, it is located at distance of around 83.2 light-years (25.5 parsecs).It is more familiar to most observers in the northern hemisphere as the lower-left star forming the bowl of the Big Dipper, together with Dubhe (upper-right), Merak (lower-right) and Megrez (upper-left). Along with four other stars in this well-known asterism, Phecda forms an actual loose, association of stars known as the Ursa Major moving group. Like the other stars in the group, it is a main sequence star not unlike our Sun, although somewhat hotter, brighter and larger.Gamma Ursae Majoris is an Ae star, which is surrounded by an envelope of gas that is adding emission lines to the spectrum of the star; hence the 'e' suffix in the stellar classification of A0 Ve. It has 2.6 times the mass of the Sun, three times the Sun's radius, and an effective temperature of 9,355 K in its outer atmosphere. This star is rotating rapidly, with a projected rotational velocity of 178 km s–1. The estimated angular diameter of this star is about 0.92 mas. It has an estimated age of 300 million years.Phecda is located in relatively close physical proximity to the prominent Mizar-Alcor star system. The two are separated by an estimated distance of 8.55 ly (2.62 pc); much closer than the two are from the Sun. The star Beta Ursae Majoris is separated from Gamma UMa by 11.0 ly (3.4 pc).".
- Gamma_Ursae_Majoris thumbnail Ursa_Major_IAU.svg?width=300.
- Gamma_Ursae_Majoris wikiPageID "1015161".
- Gamma_Ursae_Majoris wikiPageRevisionID "591409186".
- Gamma_Ursae_Majoris ageGyr "0.3".
- Gamma_Ursae_Majoris appmagV "+2.438".
- Gamma_Ursae_Majoris bV "–0.013".
- Gamma_Ursae_Majoris class "A0 Ve".
- Gamma_Ursae_Majoris constell Ursa_Major.
- Gamma_Ursae_Majoris epoch "J2000".
- Gamma_Ursae_Majoris gravity "3.79".
- Gamma_Ursae_Majoris hasPhotoCollection Gamma_Ursae_Majoris.
- Gamma_Ursae_Majoris mass "2.62".
- Gamma_Ursae_Majoris pError "0.4".
- Gamma_Ursae_Majoris parallax "39.21".
- Gamma_Ursae_Majoris propMoDec "+11.01".
- Gamma_Ursae_Majoris propMoRa "+107.68".
- Gamma_Ursae_Majoris radialV "−12.6".
- Gamma_Ursae_Majoris radius "3.04".
- Gamma_Ursae_Majoris rotationalVelocity "178".
- Gamma_Ursae_Majoris temperature "9355".
- Gamma_Ursae_Majoris uB "+0.008".
- Gamma_Ursae_Majoris subject Category:A-type_main-sequence_stars.
- Gamma_Ursae_Majoris subject Category:Bayer_objects.
- Gamma_Ursae_Majoris subject Category:Stars_with_proper_names.
- Gamma_Ursae_Majoris subject Category:Ursa_Major_(constellation).
- Gamma_Ursae_Majoris type A-typeMainSequenceStars.
- Gamma_Ursae_Majoris type BayerObjects.
- Gamma_Ursae_Majoris type CelestialBody109239740.
- Gamma_Ursae_Majoris type NaturalObject100019128.
- Gamma_Ursae_Majoris type Object100002684.
- Gamma_Ursae_Majoris type PhysicalEntity100001930.
- Gamma_Ursae_Majoris type Star109444100.
- Gamma_Ursae_Majoris type StarsWithProperNames.
- Gamma_Ursae_Majoris type Whole100003553.
- Gamma_Ursae_Majoris type CelestialBody.
- Gamma_Ursae_Majoris type Star.
- Gamma_Ursae_Majoris type PhysicalBody.
- Gamma_Ursae_Majoris comment "Gamma Ursae Majoris (Gamma UMa, γ Ursae Majoris, γ UMa) is a star in the constellation Ursa Major It has the traditional name Phad, or Phecda. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.".
- Gamma_Ursae_Majoris label "Gamma Ursae Majoris".
- Gamma_Ursae_Majoris label "Gamma Ursae Majoris".
- Gamma_Ursae_Majoris label "Gamma Ursae Majoris".
- Gamma_Ursae_Majoris label "Phad".
- Gamma_Ursae_Majoris label "Phecda".
- Gamma_Ursae_Majoris label "Phecda".
- Gamma_Ursae_Majoris label "Phekda".
- Gamma_Ursae_Majoris label "Phekida".
- Gamma_Ursae_Majoris label "Фекда".
- Gamma_Ursae_Majoris label "الفخذة (نجم)".
- Gamma_Ursae_Majoris label "おおぐま座ガンマ星".
- Gamma_Ursae_Majoris label "天璣".
- Gamma_Ursae_Majoris sameAs Phekda.
- Gamma_Ursae_Majoris sameAs Phekda.
- Gamma_Ursae_Majoris sameAs Φέκντα.
- Gamma_Ursae_Majoris sameAs Phecda.
- Gamma_Ursae_Majoris sameAs Gamma_Ursae_Majoris.
- Gamma_Ursae_Majoris sameAs Phecda.
- Gamma_Ursae_Majoris sameAs おおぐま座ガンマ星.
- Gamma_Ursae_Majoris sameAs 페크다.
- Gamma_Ursae_Majoris sameAs Phad.
- Gamma_Ursae_Majoris sameAs Phekida.
- Gamma_Ursae_Majoris sameAs Gamma_Ursae_Majoris.
- Gamma_Ursae_Majoris sameAs m.03zcv1.
- Gamma_Ursae_Majoris sameAs Q13099.
- Gamma_Ursae_Majoris sameAs Q13099.
- Gamma_Ursae_Majoris sameAs Gamma_Ursae_Majoris.
- Gamma_Ursae_Majoris wasDerivedFrom Gamma_Ursae_Majoris?oldid=591409186.
- Gamma_Ursae_Majoris depiction Ursa_Major_IAU.svg.
- Gamma_Ursae_Majoris isPrimaryTopicOf Gamma_Ursae_Majoris.
- Gamma_Ursae_Majoris name "Gamma Ursae Majoris".