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- Gamma_Pegasi abstract "Gamma Pegasi (γ Peg) is a star in the constellation of Pegasus, located at the southwest 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 it 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 slowly 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 wikiPageLength "9601".
- Gamma_Pegasi wikiPageOutDegree "43".
- Gamma_Pegasi wikiPageRevisionID "639778386".
- Gamma_Pegasi wikiPageWikiLink Alpha_Andromedae.
- Gamma_Pegasi wikiPageWikiLink Alpha_Persei.
- Gamma_Pegasi wikiPageWikiLink Apparent_magnitude.
- Gamma_Pegasi wikiPageWikiLink Asterism_(astronomy).
- Gamma_Pegasi wikiPageWikiLink Beta_Canis_Majoris.
- Gamma_Pegasi wikiPageWikiLink Beta_Cephei_variable.
- Gamma_Pegasi wikiPageWikiLink Category:B-type_subgiants.
- Gamma_Pegasi wikiPageWikiLink Category:Bayer_objects.
- Gamma_Pegasi wikiPageWikiLink Category:Beta_Cephei_variables.
- Gamma_Pegasi wikiPageWikiLink Category:Pegasus_(constellation).
- Gamma_Pegasi wikiPageWikiLink Chinese_language.
- Gamma_Pegasi wikiPageWikiLink Constellation.
- Gamma_Pegasi wikiPageWikiLink D._Harold_McNamara.
- Gamma_Pegasi wikiPageWikiLink Effective_temperature.
- Gamma_Pegasi wikiPageWikiLink Henry_Draper_Catalogue.
- Gamma_Pegasi wikiPageWikiLink Hipparcos.
- Gamma_Pegasi wikiPageWikiLink Keivin_Burns.
- Gamma_Pegasi wikiPageWikiLink List_of_stars_in_Pegasus.
- Gamma_Pegasi wikiPageWikiLink Luminosity.
- Gamma_Pegasi wikiPageWikiLink Main_sequence.
- Gamma_Pegasi wikiPageWikiLink Nakshatra.
- Gamma_Pegasi wikiPageWikiLink Parallax.
- Gamma_Pegasi wikiPageWikiLink Pegasus_(constellation).
- Gamma_Pegasi wikiPageWikiLink Radial_velocity.
- Gamma_Pegasi wikiPageWikiLink Slowly_pulsating_B-type_star.
- Gamma_Pegasi wikiPageWikiLink Solar_mass.
- Gamma_Pegasi wikiPageWikiLink Solar_radius.
- Gamma_Pegasi wikiPageWikiLink Star.
- Gamma_Pegasi wikiPageWikiLink Star_catalogue.
- Gamma_Pegasi wikiPageWikiLink Stellar_atmosphere.
- Gamma_Pegasi wikiPageWikiLink Stellar_classification.
- Gamma_Pegasi wikiPageWikiLink Stellar_evolution.
- Gamma_Pegasi wikiPageWikiLink Stellar_rotation.
- Gamma_Pegasi wikiPageWikiLink Subgiant.
- Gamma_Pegasi wikiPageWikiLink Uttara_Bhādrapadā.
- Gamma_Pegasi wikiPageWikiLink Wall_(Chinese_constellation).
- Gamma_Pegasi wikiPageWikiLink File:Cercle_rouge_100%25.svg.
- Gamma_Pegasi wikiPageWikiLink File:Pegasus_IAU.svg.
- Gamma_Pegasi wikiPageWikiLinkText "Algenib in Pegasus".
- Gamma_Pegasi wikiPageWikiLinkText "Algenib".
- Gamma_Pegasi wikiPageWikiLinkText "Gamma Pegasi".
- Gamma_Pegasi wikiPageWikiLinkText "Gamma".
- Gamma_Pegasi wikiPageWikiLinkText "γ Peg".
- Gamma_Pegasi wikiPageWikiLinkText "γ Pegasi".
- Gamma_Pegasi wikiPageWikiLinkText "γ".
- Gamma_Pegasi ageMyr "18.7".
- 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 gravity "3.98".
- Gamma_Pegasi luminosity "5840".
- Gamma_Pegasi mass "8.9".
- 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 radius "4.8".
- Gamma_Pegasi rotationalVelocity "0".
- Gamma_Pegasi temperature "21179".
- Gamma_Pegasi uB "–0.85".
- Gamma_Pegasi variable Beta_Cephei_variable.
- Gamma_Pegasi wikiPageUsesTemplate Template:Citation.
- Gamma_Pegasi wikiPageUsesTemplate Template:Convert.
- Gamma_Pegasi wikiPageUsesTemplate Template:DEC.
- Gamma_Pegasi wikiPageUsesTemplate Template:Lang-en.
- Gamma_Pegasi wikiPageUsesTemplate Template:RA.
- Gamma_Pegasi wikiPageUsesTemplate Template:Reflist.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_astrometry.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_begin.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_catalog.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_character.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_detail.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_end.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_image.
- Gamma_Pegasi wikiPageUsesTemplate Template:Starbox_observe.
- Gamma_Pegasi wikiPageUsesTemplate Template:Stars_of_Pegasus.
- 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 hypernym Star.
- Gamma_Pegasi type CelestialBody.
- Gamma_Pegasi type Place.
- Gamma_Pegasi type Star.
- Gamma_Pegasi type Catalogue.
- Gamma_Pegasi type Variable.
- Gamma_Pegasi type Location.
- Gamma_Pegasi type Place.
- Gamma_Pegasi type Thing.