{"id":440,"date":"2017-08-08T13:24:00","date_gmt":"2017-08-08T11:24:00","guid":{"rendered":"https:\/\/kids.esa.int\/here_come_the_perseids4\/"},"modified":"2026-10-08T00:28:14","modified_gmt":"2026-10-07T22:28:14","slug":"here_come_the_perseids4","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/here_come_the_perseids4\/","title":{"rendered":"Nu kommer Perseiderna!"},"content":{"rendered":"
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Himlens iakttagare har n\u00e5got att se fram emot den h\u00e4r veckan, n\u00e4r det \u00e5rliga Perseid-meteorsv\u00e4rmet n\u00e5r sin h\u00f6jdpunkt! Om du aldrig har sett en meteor f\u00f6rut \u00e4r detta det perfekta tillf\u00e4llet. Den h\u00f6gsta aktiviteten f\u00f6rv\u00e4ntas mellan den 11 och 13 augusti. H\u00e5ll dig borta fr\u00e5n starkt ljus, l\u00e5t \u00f6gonen v\u00e4nja sig vid m\u00f6rkret, l\u00e4gg dig p\u00e5 rygg och blicka upp mot himlen!<\/p>\n<\/div>\n

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Perseiderna har f\u00e5tt sitt namn efter stj\u00e4rnbilden Perseus, fr\u00e5n vilken de tycks str\u00e5la ut. De kan dock synas var som helst p\u00e5 himlen. Den b\u00e4sta riktningen att titta \u00e5t \u00e4r dit d\u00e4r himlen \u00e4r som m\u00f6rkast, troligen rakt upp. Meteorsv\u00e4rmen syns b\u00e4st fr\u00e5n kl. 23 eller midnatt och fram\u00e5t, d\u00e5 du kan se upp till 100 meteorer per timme!<\/p>\n

Perseiderna \u00e4r sand- till \u00e4rtstora bitar av stenavfall som f\u00f6r l\u00e4nge sedan slungades ut av kometen Swift-Tuttle. Denna komet faller l\u00e5ngsamt s\u00f6nder medan den kretsar kring solen. Under \u00e5rhundradenas lopp har dess s\u00f6nderfallna rester spridit sig l\u00e4ngs dess bana och bildat ett partikelstr\u00f6m som \u00e4r hundratals miljoner kilometer l\u00e5ngt.<\/p>\n

Jordens bana runt Solen f\u00f6r oss genom detta kometavfall varje \u00e5r i mitten av augusti. Partiklarna, som kallas \u2018meteoroider\u2019, r\u00f6r sig med en hastighet av 60 km per sekund i f\u00f6rh\u00e5llande till Jorden. N\u00e4r en av dem tr\u00e4ffar den \u00f6vre atmosf\u00e4ren skapar den ett gl\u00f6dande sp\u00e5r av \u00f6verhettad luft. Ibland finns det ljusare partiklar som varar i flera sekunder och l\u00e4mnar sp\u00e5r av gl\u00f6dande r\u00f6k och gas efter sig.<\/p>\n

Perseiderna \u00e4r perfekta f\u00f6r digital fotografering. S\u00e4tt fast kameran p\u00e5 ett stativ, helst med ett vidvinkelobjektiv och en h\u00f6g ISO-inst\u00e4llning (f\u00f6r m\u00f6rker). L\u00e5t slutaren vara \u00f6ppen i 10\u201315 sekunder \u00e5t g\u00e5ngen (l\u00e4ngre tid p\u00e5 en riktigt m\u00f6rk plats). Med lite tur b\u00f6r du kunna f\u00e5nga en eller flera Perseider som susar f\u00f6rbi p\u00e5 bilden!<\/p>","protected":false},"excerpt":{"rendered":"

Sky watchers will be in for a treat this week, when the annual Perseid meteor shower reaches its peak! If you’ve never seen a meteor before, this is the ideal […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/08\/perseid_meteor_shower\/17907680-2-eng-GB\/Perseid_meteor_shower.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/08\/Perseid_meteor_shower","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-440","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=440"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/440\/revisions"}],"predecessor-version":[{"id":4476,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/440\/revisions\/4476"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=440"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=440"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=440"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=440"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=440"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=440"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=440"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}