{"id":2999,"date":"2017-10-31T10:50:13","date_gmt":"2017-10-31T08:50:13","guid":{"rendered":"http:\/\/linde-stories.com\/no\/?p=2999"},"modified":"2018-02-15T15:25:39","modified_gmt":"2018-02-15T14:25:39","slug":"det-magiske-nordlyset","status":"publish","type":"post","link":"https:\/\/linde-stories.com\/no\/det-magiske-nordlyset\/","title":{"rendered":"Det magiske nordlyset"},"content":{"rendered":"<p><strong>Visste du at gasser bidrar i fargespillet?<\/strong><\/p>\n<p>Nordlyset er et fascinerende syn, og folk valfarter til polaromr\u00e5dene for \u00e5 f\u00e5 se det spektakul\u00e6re lysshowet. Fargespillet er aldri det samme fra gang til gang. Av og til skimter man s\u00e5 vidt gr\u00f8nt i horisonten, andre ganger danser b\u00f8lgende m\u00f8nstre i gr\u00f8nt, r\u00f8dt, lilla og bl\u00e5tt p\u00e5 himmelen.<\/p>\n<div class=\"factbox right\">\n<p><img loading=\"lazy\" class=\"wp-image-3016 size-medium alignright\" src=\"http:\/\/linde-stories.com\/no\/wp-content\/uploads\/sites\/3\/2017\/10\/Northern-Lights-illustration-NO-300x243.gif\" alt=\"\" width=\"300\" height=\"243\" \/><strong>Fargene<br \/>\n<\/strong>Nordlyset kommer i forskjellige farger, og fargen avhenger av hvor h\u00f8yt i atmosf\u00e6ren fenomenet oppst\u00e5r. Gr\u00f8nn er den mest vanlige fargen i nordlyset.<\/p>\n<p><em>Illustrasjon: Unni Bekkevold<\/em><\/p>\n<\/div>\n<p><strong>Hvordan oppst\u00e5r nordlyset?<br \/>\n<\/strong>Fellesbetegnelsen for fenomenet er polarlys (<a href=\"https:\/\/no.wikipedia.org\/wiki\/Aurora_polaris\" target=\"_blank\" rel=\"noopener noreferrer\">aurora polaris<\/a>), og det kalles nordlys (aurora borealis) n\u00e5r det opptrer p\u00e5 den nordlige halvkulen og s\u00f8rlys (aurora australis) n\u00e5r det opptrer p\u00e5 den s\u00f8rlige halvkulen. Fenomenet dreier seg om ren fysikk, og starter p\u00e5 sola. Sola spinner rundt sin egen akse mens den slynger ut solvinder. En <a href=\"https:\/\/no.wikipedia.org\/wiki\/Solvind\" target=\"_blank\" rel=\"noopener noreferrer\">solvind<\/a> er en str\u00f8m av ladde partikler, i hovedsak energirike <a href=\"http:\/\/snl.no\/elektron\" target=\"_blank\" rel=\"noopener noreferrer\">elektroner<\/a> og <a href=\"http:\/\/snl.no\/proton\" target=\"_blank\" rel=\"noopener noreferrer\">protoner<\/a>. Med en fart p\u00e5 \u00e5tte millioner kilometer i timen legger partiklene ut p\u00e5 den lange reisen mot jorda, og bruker 18 timer p\u00e5 \u00e5 tilbakelegge de 150 millioner kilometerne. Partiklene blir trukket mot jordas magnetfelter, og n\u00e5r de treffer jordas atmosf\u00e6re med stor hastighet vil kollisjonen f\u00e5 gassene i atmosf\u00e6ren til \u00e5 lyse fordi de blir tilf\u00f8rt energi. Dette skjer som oftest i den \u00f8vre del av atmosf\u00e6ren, omtrent 80-300 km over bakken, og sjelden over 500 km.<\/p>\n<p>Se video p\u00e5 <a href=\"http:\/\/visitnorway.com\" target=\"_blank\" rel=\"noopener noreferrer\">visitnorway.com<\/a> som forklarer fenomenet <a href=\"https:\/\/player.vimeo.com\/video\/140757388\/?autoplay=1\" target=\"_blank\" rel=\"noopener noreferrer\">her <\/a>(engelsk tale)<\/p>\n<p><strong>Hvor og n\u00e5r kan man se nordlys?<br \/>\n<\/strong>Aktivitet p\u00e5 sola styrer hvor ofte nordlyset oppst\u00e5r og hvor intenst det er, og fenomenet forekommer n\u00e5r solvinden er kraftigere enn normalt. Jordas <a href=\"https:\/\/snl.no\/jordmagnetisme\" target=\"_blank\" rel=\"noopener noreferrer\">magnetfelt<\/a> og atmosf\u00e6re er imidlertid det som bestemmer hvor nordlyset opptrer. Nordlys kan ses p\u00e5 den nordlige halvkulen, i en oval form sentrert over den magnetiske polen.<\/p>\n<p>Nord-Norge er stedet \u00e5 reise til om du vil ha gode muligheter til \u00e5 oppleve nordlys.\u00a0Mest optimale forhold har du i\u00a0timene f\u00f8r midnatt en stjerneklar kveld med lite m\u00e5nelys, og det er\u00a0i vinterm\u00e5nedene fra september til april\u00a0du har\u00a0best sjanser\u00a0til \u00e5 se nordlys.<\/p>\n<p>Her finner du nordlysvarsel: <a href=\"http:\/\/kho.unis.no\/\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/kho.unis.no\/<\/a><\/p>\n<p><em>Tekst: Unni Bekkevold<br \/>\nFoto: Shutterstock<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Visste du at gasser bidrar i fargespillet? Nordlyset er et fascinerende syn, og folk valfarter til polaromr\u00e5dene for \u00e5 f\u00e5 se det spektakul\u00e6re lysshowet. Fargespillet er aldri det samme fra gang til gang. Av og til skimter man s\u00e5 vidt gr\u00f8nt i horisonten, andre ganger danser b\u00f8lgende m\u00f8nstre i gr\u00f8nt, r\u00f8dt, lilla og bl\u00e5tt p\u00e5 himmelen. Fargene Nordlyset kommer i forskjellige farger, og fargen avhenger av hvor h\u00f8yt i atmosf\u00e6ren fenomenet oppst\u00e5r. Gr\u00f8nn er den mest vanlige fargen i nordlyset. Illustrasjon: Unni Bekkevold Hvordan oppst\u00e5r nordlyset? Fellesbetegnelsen for fenomenet er polarlys (aurora polaris), og det kalles nordlys (aurora borealis) n\u00e5r <\/p>\n","protected":false},"author":4,"featured_media":2998,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3,443],"tags":[33,508,506,507,509],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Det magiske nordlyset &ndash; Linde Stories<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/linde-stories.com\/no\/det-magiske-nordlyset\/\" \/>\n<meta property=\"og:locale\" content=\"nb_NO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Det magiske nordlyset &ndash; Linde Stories\" \/>\n<meta property=\"og:description\" content=\"Visste du at gasser bidrar i fargespillet? Nordlyset er et fascinerende syn, og folk valfarter til polaromr\u00e5dene for \u00e5 f\u00e5 se det spektakul\u00e6re lysshowet. Fargespillet er aldri det samme fra gang til gang. Av og til skimter man s\u00e5 vidt gr\u00f8nt i horisonten, andre ganger danser b\u00f8lgende m\u00f8nstre i gr\u00f8nt, r\u00f8dt, lilla og bl\u00e5tt p\u00e5 himmelen. Fargene Nordlyset kommer i forskjellige farger, og fargen avhenger av hvor h\u00f8yt i atmosf\u00e6ren fenomenet oppst\u00e5r. Gr\u00f8nn er den mest vanlige fargen i nordlyset. Illustrasjon: Unni Bekkevold Hvordan oppst\u00e5r nordlyset? 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