{"id":62369,"date":"2019-03-28T18:00:09","date_gmt":"2019-03-28T16:00:09","guid":{"rendered":"https:\/\/osr.org\/?p=62369"},"modified":"2019-03-28T15:16:50","modified_gmt":"2019-03-28T13:16:50","slug":"alpha-pegasi-bekende-sterren","status":"publish","type":"post","link":"https:\/\/osr.org\/nl\/blog\/astronomie-nl\/alpha-pegasi-bekende-sterren\/","title":{"rendered":"Alpha Pegasi \u2013 Bekende sterren"},"content":{"rendered":"<h2><span style=\"color: #15acdf;\">Stellaire omgeving<\/span><\/h2>\n<p>Alpha Pegasi ligt ongeveer 133 lichtjaar verwijderd van de aarde in de constellatie Pegasus. Pegasus staat op de 7<sup>de<\/sup> plaats van grootste constellaties, met Markab als \u00e9\u00e9n van de vier sterren in het asterisme &#8216;het Grote Vierkant van Pegasus&#8217;. Een asterisme is een groep sterren die een figuur vormen, maar geen officieel sterrenbeeld zijn. De Pegasus constellatie bevat een Messierobject en een meteorenregen (De Pegasiden in Juli).<\/p>\n<h2><span style=\"color: #15acdf;\">Waarneming<\/span><\/h2>\n<p>Markab kan worden gezien in zijn thuis constellatie in het vierde kwadrant van de noordelijke hemelkoepel, specifiek tussen breedtegraden van +90 en -60 graden. Met het blote oog is de ster het beste te zien rondom de herfst-equinox (op 23 september) in oost tot noordoostelijke richting. Markab staat net boven de horizon en kan gezien worden tot ver in maart. De vier heldere sterren van het asterisme maken samen een groot vierkant in de hemel dat niet te missen is.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-23363 size-full\" src=\"https:\/\/osr.org\/wp-content\/uploads\/2016\/07\/alpha-pegasi-star.jpg\" alt=\"alpha pegasi\" width=\"650\" height=\"400\" srcset=\"https:\/\/osr.org\/wp-content\/uploads\/2016\/07\/alpha-pegasi-star.jpg 650w, https:\/\/osr.org\/wp-content\/uploads\/2016\/07\/alpha-pegasi-star-300x185.jpg 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/p>\n<p style=\"text-align: center;\"><a class=\"button button-orange medium arrow\" href=\"https:\/\/osr.org\/oms\/Alpha%20Pegasi\/\">Bekijk Alpha Pegasi in 3D!<\/a><\/p>\n<h2><span style=\"color: #15acdf;\">Eigenschappen &amp; feiten<\/span><\/h2>\n<p>Alpha Pegasi is een B-type reus waarvan de kern van zijn waterstof is opgeraakt en nu voorbij de hoofdreeks sterren is ge\u00ebvolueerd. Het is een snel draaiende ster die draait met snelheden van 125 kilometer per seconde. De effectieve temperatuur van de buitenste schil ligt dicht bij 10.000 Kelvin (9.726 graden Celsius), waardoor deze ster tot bijna vijf keer de omvang van de zon kan uitzetten.<\/p>\n<h2><span style=\"color: #15acdf;\">Helderheid van de ster<\/span><\/h2>\n<p>Markab is niet de felste ster in Pegasus, maar de derde meest heldere ster in zijn constellatie en nummer 93 van de meest heldere sterren aan de nachtelijke hemel. Deze ster schijnt met een schijnbare visuele magnitude van 2.48.<\/p>\n<h2><span style=\"color: #15acdf;\">Geschiedenis en mythologie<\/span><\/h2>\n<p>Hoewel er geen mythologische verhalen zijn rondom Alpha Pegasi, wordt er gedacht dat de constellatie is vernoemd ter herdenking van het gevleugelde paard (met held Perseus op zijn rug) in de Griekse mythologie dat Andromeda kwam redden van het zeemonster. Bovendien werd deze constellatie als een van de eerste gecatalogiseerd in de tweede eeuw door de Griekse astronoom Ptolemaeus.<\/p>\n<p><span class=\"blue-box\"><br \/>\nAlpha Pegasi is niet zomaar een schitterend hemels object, er zijn enkele harde feiten met ware betekenissen bekend. Als je de kans hebt om deze ster uit het asterisme \u201chet Grote Vierkant van Pegasus\u201d in de nachtelijke hemel te zien, zorg ervoor dat je kijkt!<br \/>\n<\/span><\/p>\n<p style=\"text-align: center;\"><a class=\"button button-orange medium arrow\" href=\"https:\/\/osr.org\/oms\/Alpha%20Pegasi\/\">Bekijk Alpha Pegasi in 3D!<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stellaire omgeving Alpha Pegasi ligt ongeveer 133 lichtjaar verwijderd van de aarde in de constellatie Pegasus. Pegasus staat op de 7de plaats van grootste constellaties, met Markab als \u00e9\u00e9n van de vier sterren in het asterisme &#8216;het Grote Vierkant van Pegasus&#8217;. Een asterisme is een groep sterren die een figuur vormen, maar geen officieel sterrenbeeld [&hellip;]<\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[444],"tags":[],"class_list":["post-62369","post","type-post","status-publish","format-standard","hentry","category-astronomie-nl"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Alpha Pegasi \u2013 Bekende sterren - Online Star Register<\/title>\n<meta name=\"description\" content=\"Alpha Pegasi is de op twee na helderste ster in de constellatie Pegasus. Alpha Pegasi is erg heet en uitgegroeid tot bijna vijf keer de straal van de zon.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/osr.org\/nl\/blog\/astronomie-nl\/alpha-pegasi-bekende-sterren\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alpha Pegasi \u2013 Bekende sterren - Online Star Register\" \/>\n<meta property=\"og:description\" content=\"Alpha Pegasi is de op twee na helderste ster in de constellatie Pegasus. 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