{"id":128804,"date":"2020-05-20T17:00:39","date_gmt":"2020-05-20T15:00:39","guid":{"rendered":"https:\/\/osr.org\/?p=128804"},"modified":"2020-05-13T10:04:01","modified_gmt":"2020-05-13T08:04:01","slug":"beta-ceti-bekende-sterren","status":"publish","type":"post","link":"https:\/\/osr.org\/nl\/blog\/astronomie-nl\/beta-ceti-bekende-sterren\/","title":{"rendered":"Beta Ceti \u2013 Bekende sterren"},"content":{"rendered":"<h2><span style=\"color: #15acdf;\">Stellaire omgeving<\/span><\/h2>\n<p>Beta Cetiis bevindt zich op ongeveer 96,3 lichtjaar afstand in het sterrenbeeld Cetus. Deze ster is het op vier na grootste sterrenbeeld in omvang van de 88. Daarbij bevat het sterrenbeeld \u00e9\u00e9n Messier object en drie meteorenregens; de October Cetids, de Eta Cetids en de Omicron Cetids. Het sterrenbeeld Cetus maakt deel uit van de Perseus-familie van sterrenbeelden.<\/p>\n<h2><span style=\"color: #15acdf;\">Waarneming<\/span><\/h2>\n<p>Beta Ceti is te zien in zijn thuisconstellatie in het eerste kwadrant van het zuidelijk halfrond tussen breedtegraden +70 en -90. Omdat deze ster erg helder is, kan hij met het blote oog worden bekeken door mensen die zich rond de middelste breedtegraden bevinden op het noordelijk halfrond. Hij is het best te zien in de herfstmaanden aan de zuidelijke sterrenhemel en is tussen 9 en 22 uur tot half november op zijn hoogste punt.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-112172\" title=\"beta-ceti-star\" src=\"https:\/\/osr.org\/wp-content\/uploads\/2019\/10\/beta-ceti-star.jpg\" alt=\"Beta Ceti Star\" width=\"758\" height=\"466\" srcset=\"https:\/\/osr.org\/wp-content\/uploads\/2019\/10\/beta-ceti-star.jpg 758w, https:\/\/osr.org\/wp-content\/uploads\/2019\/10\/beta-ceti-star-300x184.jpg 300w\" sizes=\"auto, (max-width: 758px) 100vw, 758px\" \/><\/p>\n<p style=\"text-align: center;\"><a class=\"button button-orange medium arrow\" href=\"https:\/\/osr.org\/oms\/nl\/Beta%20Ceti\/\">Bekijk Beta Ceti in 3D!<\/a><\/p>\n<h2><span style=\"color: #15acdf;\">Eigenschappen &amp; feiten<\/span><\/h2>\n<p>Beta Ceti is een oranje reus die behoort tot de K0 III spectrale klasse. Deze spectrale klasse geeft aan dat de ster nu de hoofdreeks fase heeft verlaten. Beta Ceti wekt nu energie op in de vorm van thermonucleaire kernfusie van helium, nadat de ster door de rode reuzenfase ging en daarna een heliumflits fase heeft doorgemaakt. Deze thermonucleaire kernfusie kan meer dan 100 miljoen jaar duren. Deneb Kaitos bevat ook 2,8 keer de massa van de zon en is 18 keer de straal zo groot.<\/p>\n<h2><span style=\"color: #15acdf;\">Helderheid van de ster<\/span><\/h2>\n<p>Beta Ceti is de helderste ster in het sterrenbeeld Cetus met een schijnbare visuele magnitude van 2,04. Hij schijnt ongeveer 145 keer zo fel als onze zon. Omdat deze ster periodieke uitbarstingen vertoont, verandert regelmatig zijn helderheid. Bovendien heeft Deneb Kaitos een oppervlaktetemperatuur van 4.800 Kelvin of 4.526 graden Celsius.<\/p>\n<h2><span style=\"color: #15acdf;\">Geschiedenis en mythologie<\/span><\/h2>\n<p>Hoewel er geen specifieke mythologie rond Beta Ceti bestaat, aan het thuissterrenbeeld Cetus is wel een Griekse mythe gekoppeld. Het zeemonster Cetus aan de hemel geplaatst als dank voor zijn diensten aan de goden. Volgens de legende werd Andromeda achtergelaten als een offer aan Cetus om de boze god, Poseidon, te kalmeren vanwege de opschepperij van haar moeder. Maar voordat het monster haar kon meenemen, redde Perseus de prinses en zijn ze later getrouwd.<\/p>\n<p><span class=\"blue-box\"> Beta Ceti is niet zomaar een fonkelend hemellichaam, er zijn een aantal coole feiten en mooie verhalen aan gekoppeld. Als je de kans hebt om deze ster te bekijken, mis het niet! <\/span><\/p>\n<p style=\"text-align: center;\"><strong><a class=\"button button-orange medium arrow\" href=\"https:\/\/osr.org\/oms\/nl\/Beta%20Ceti\/\">Vlieg naar Beta Ceti in 3D!<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Stellaire omgeving Beta Cetiis bevindt zich op ongeveer 96,3 lichtjaar afstand in het sterrenbeeld Cetus. Deze ster is het op vier na grootste sterrenbeeld in omvang van de 88. Daarbij bevat het sterrenbeeld \u00e9\u00e9n Messier object en drie meteorenregens; de October Cetids, de Eta Cetids en de Omicron Cetids. Het sterrenbeeld Cetus maakt deel uit [&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":[444,30],"tags":[],"class_list":["post-128804","post","type-post","status-publish","format-standard","hentry","category-astronomie-nl","category-osr-nl"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Beta Ceti \u2013 Bekende sterren - Online Star Register<\/title>\n<meta name=\"description\" content=\"Beta Ceti heeft twee traditionele namen, schijnt zo&#039;n 145 keer feller dan de zon en verandert regelmatig van helderheid. Meer weten? 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