{"id":1127,"date":"2004-11-15T12:50:00","date_gmt":"2004-11-15T11:50:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_sun\/"},"modified":"2026-10-08T00:36:18","modified_gmt":"2026-10-07T22:36:18","slug":"the_sun","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/the_sun\/","title":{"rendered":"P\u00e4ike"},"content":{"rendered":"
\n

Spektrograafideks nimetatavad spetsiaalsed seadmed n\u00e4itavad, et P\u00e4ike koosneb peaaegu t\u00e4ielikult kahest gaasist: vesinikust ja heeliumist. P\u00e4ikese pinnatemperatuur on umbes 5 500 kraadi Celsiuse j\u00e4rgi \u2013 \u00fcle 20 korra kuumem kui maksimaalsele temperatuurile kuumutatud ahi. Keskmes t\u00f5useb temperatuur umbes 15 miljoni kraadini Celsiuse j\u00e4rgi ja gaasi tihedus on umbes 10 korda suurem kui plii tihedus.<\/p>\n<\/div>\n

Selliste k\u00f5rgete temperatuuride ja r\u00f5hkude juures muutub P\u00e4ike tuumareaktoriks, kus vesinik muundub heeliumiks. Samal ajal tekib tohutu hulk kiirgust. See j\u00f5uab pinnale n\u00e4htava valguse, infrapuna- ja ultraviolettkiirguse ning r\u00f6ntgenkiirguse kujul.<\/p>\n

Iga tunni j\u00e4rel paiskab P\u00e4ike kosmosesse miljard tonni gaasi kiirusega kuni 2 miljonit km tunnis. Sellest hoolimata on P\u00e4ike nii massiivne, et suudab p\u00f5leda veel miljardeid aastaid.<\/p>\n

\"Mysterious<\/figure>\n

P\u00e4ike muutub iga 11 aasta j\u00e4rel aktiivsemaks. Sel ajal suureneb tumedate p\u00e4ikeseplekkide arv P\u00e4ikese pinnal. P\u00e4ikeseplekkide ts\u00fckli haripunktis esineb palju rohkem plahvatuslikke p\u00e4ikesetorme. Viimase p\u00e4ikesemaksimumi ajal 2001. aastal paiskasid paljud p\u00e4ikesepursed ja koronaalse massi v\u00e4ljapaiskumised kosmosesse suure kiirusega miljardeid tonneid ainet.<\/p>\n

Kui need tormid liiguvad Maa suunas, v\u00f5ivad neil olla t\u00f5sised tagaj\u00e4rjed. Need v\u00f5ivad p\u00f5hjustada elektrikatkestusi, kahjustada satelliite ning m\u00f5jutada side- ja navigatsioonis\u00fcsteeme. Samuti tekitavad need Maa virmalisi \u2013 mida tuntakse \u00fcldiselt kui p\u00f5hjapoolset ja l\u00f5unapoolset virmalist.<\/p>","protected":false},"excerpt":{"rendered":"

Special instruments known as spectrographs tell us that the Sun is made almost entirely of two gases, hydrogen and helium. The temperature at its surface is about 5 500 degrees […]<\/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\/2004\/11\/the_sun2\/17874148-2-eng-GB\/The_Sun.jpg","esa_banner_description":"The Sun","esa_banner_credit":"SOHO\/EIT (ESA & NASA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/The_Sun2","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":[10,11,35],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1127","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-the-sun","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=1127"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1127\/revisions"}],"predecessor-version":[{"id":4862,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/1127\/revisions\/4862"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=1127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=1127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=1127"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=1127"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=1127"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=1127"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=1127"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=1127"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=1127"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=1127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}