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• Gamma_Pegasi abstract "Gamma Pegasi (γ Peg) is a star in the constellation of Pegasus, located at the lower left-hand corner of the asterism known as the Great Square. It also has the traditional name Algenib; confusingly however, this name is also used for Alpha Persei. The average apparent visual magnitude of +2.84 puts this at fourth place among the brightest stars in the constellation. The distance to this star has been measured using the parallax technique, yielding a value of roughly 390 light-years (120 parsecs) with a margin of error of 5%.The asterism of γ Pegasi and α Andromedae, in Hindu astronomy, is called Uttara Bhādrapadā (उत्तरभाद्रपदा) or Uttṛṭṭāti. It is the 26th nakshatra. In Chinese, 壁宿 (Bìxiù), meaning Wall (asterism) refers to an asterism consisting of γ Pegasi and α Andromedae . Consequently, γ Pegasi itself is known as 壁宿一 (Bìxiù yī, English: the First Star of Wall.)In 1911, American astronomer Keivin Burns discovered that the radial velocity of this star varied slightly. This was confirmed in 1953 by American astronomer D. Harold McNamara, who identified it as a Beta Cephei variable. (At the time he actually identified is as a Beta Canis Majoris star, which was subsequently designated a Beta Cephei variable.) It has a radial pulsation period of 0.15175 days (3.642 hours), but also shows the behavior of a slowing pulsating B star (SPB) with three additional pulsational frequencies. Its magnitude varies between +2.78 and +2.89 over the course of each pulsation cycle. This is a large star with almost nine times the mass of the Sun and close to five times the Sun's radius. The stellar classification of B2 IV suggests this is a subgiant star that is exhausting the hydrogen at its core and is in the process of evolving away from the main sequence. It is either rotating very slowly with no measurable rotational velocity or else it is being viewed from nearly pole-on. Gamma Pegasi has a total luminosity of 5,840 times that of the Sun, which is being radiated from its outer atmosphere at an effective temperature of more than 21,000 K. At this temperature, the star glows with a blue-white hue.".
• Gamma_Pegasi thumbnail Pegasus_IAU.svg?width=300.
• Gamma_Pegasi wikiPageExternalLink algenib.html.
• Gamma_Pegasi wikiPageID "1522618".
• Gamma_Pegasi wikiPageRevisionID "602277101".
• Gamma_Pegasi appmagV "+2.84".
• Gamma_Pegasi bV "–0.23".
• Gamma_Pegasi class "B2 IV".
• Gamma_Pegasi constell Pegasus_(constellation).
• Gamma_Pegasi epoch "J2000".
• Gamma_Pegasi hasPhotoCollection Gamma_Pegasi.
• Gamma_Pegasi luminosity "5840".
• Gamma_Pegasi metalFe "–0.34".
• Gamma_Pegasi pError "0.53".
• Gamma_Pegasi parallax "8.33".
• Gamma_Pegasi propMoDec "–9.28".
• Gamma_Pegasi propMoRa "+1.98".
• Gamma_Pegasi radialV "+4.1".
• Gamma_Pegasi rotationalVelocity "0".
• Gamma_Pegasi uB "–0.85".
• Gamma_Pegasi variable Beta_Cephei_variable.
• Gamma_Pegasi subject Category:B-type_subgiants.
• Gamma_Pegasi subject Category:Bayer_objects.
• Gamma_Pegasi subject Category:Beta_Cephei_variables.
• Gamma_Pegasi subject Category:Pegasus_(constellation).
• Gamma_Pegasi type BayerObjects.
• Gamma_Pegasi type Object100002684.
• Gamma_Pegasi type PhysicalEntity100001930.
• Gamma_Pegasi type CelestialBody.
• Gamma_Pegasi type Star.
• Gamma_Pegasi type PhysicalBody.
• Gamma_Pegasi comment "Gamma Pegasi (γ Peg) is a star in the constellation of Pegasus, located at the lower left-hand corner of the asterism known as the Great Square. It also has the traditional name Algenib; confusingly however, this name is also used for Alpha Persei. The average apparent visual magnitude of +2.84 puts this at fourth place among the brightest stars in the constellation.".
• Gamma_Pegasi label "Algenib".
• Gamma_Pegasi label "Algenib".
• Gamma_Pegasi label "Algenib".
• Gamma_Pegasi label "Gamma Pegasi".
• Gamma_Pegasi label "Gamma Pegasi".
• Gamma_Pegasi label "Gamma Pegasi".
• Gamma_Pegasi label "Gamma Pegasi".
• Gamma_Pegasi label "Gamma Pegasi".
• Gamma_Pegasi label "Альгениб".
• Gamma_Pegasi label "الجنب (نجم)".
• Gamma_Pegasi label "ペガスス座ガンマ星".
• Gamma_Pegasi label "壁宿一".
• Gamma_Pegasi sameAs Algenib.
• Gamma_Pegasi sameAs Algenib.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi sameAs Algenib.
• Gamma_Pegasi sameAs ペガスス座ガンマ星.
• Gamma_Pegasi sameAs Algenib.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi sameAs m.057t6k.
• Gamma_Pegasi sameAs Q954716.
• Gamma_Pegasi sameAs Q954716.
• Gamma_Pegasi sameAs Gamma_Pegasi.
• Gamma_Pegasi wasDerivedFrom Gamma_Pegasi?oldid=602277101.
• Gamma_Pegasi depiction Pegasus_IAU.svg.
• Gamma_Pegasi isPrimaryTopicOf Gamma_Pegasi.
• Gamma_Pegasi name "Gamma Pegasi".