{"id":254,"date":"2024-04-03T11:29:39","date_gmt":"2024-04-03T11:29:39","guid":{"rendered":"https:\/\/severnisij.si\/?p=254"},"modified":"2025-05-06T11:59:59","modified_gmt":"2025-05-06T11:59:59","slug":"severni-sij-21-januarja-2005","status":"publish","type":"post","link":"https:\/\/severnisij.si\/index.php\/2024\/04\/03\/severni-sij-21-januarja-2005\/","title":{"rendered":"Severni sij 21. januarja 2005"},"content":{"rendered":"\n

21. januarja 2005 se je severni sij pojavil \u0161e zadnji\u010d v 23. son\u010devem ciklu. Velika in kompleksna skupina peg 10720 je 20. januarja po\u010dila z velikim bli\u0161\u010dem kategorije X7.1\/2B, ki je proti Zemlji poslal asimetri\u010den, a zelo hiter izbruh CME. Zemljo je dosegel pozno 21. januarja z visoko hitrostjo son\u010devega vetra in kaoti\u010dnim magnetnim poljem, kljub temu je geomagnetni vihar dosegel kategorijo G4<\/a>. Opazovanja severnega sija je motila 87% osvetljena Luna, nekaj dni pred polno.<\/p>\n\n\n\n

Prvi val<\/h2>\n\n\n\n

Severni sij je pri\u0161el v ve\u010d valovih. Prvi val<\/strong> je trajal vsa od 19:59 do 20:22, z difuznim rde\u010dim sijem do 18\u00b0 visoko na severnem nebu od azimuta 330\u00b0 do 30\u00b0. Ujeli so ga opazovalci iz razli\u010dnih koncev Slovenije, med njimi tudi Javor Kac iz Kostanjevca.<\/p>\n\n\n

\n
\"Severni<\/figure>\n<\/div>\n\n\n

Severni sij nad Pohorjem, posnet iz Kostanjevca ob 20:04. Foto: Javor Kac<\/a>.<\/em><\/p>\n\n\n\n

Drugi val<\/h2>\n\n\n\n

Severni sij se je nato pojavil v \u0161e nekaj valovih. Drugi val <\/strong>se je pri\u010del slabi dve uri kasneje, ob 22:12 z rde\u010dim sijem do vi\u0161ine 12\u00b0 nad severnim obzorjem. Trajal je do 22:25. <\/p>\n\n\n

\n
\"Severni<\/figure>\n<\/div>\n\n\n

Severni sij posnet iz Verduna pri Novem Mestu ob 22:14. Foto: Nejc Ucman.<\/em><\/p>\n\n\n

\n
\"Severni<\/figure>\n<\/div>\n\n\n

22:15.<\/em><\/p>\n\n\n

\n
\"Severni<\/figure>\n<\/div>\n\n\n

22:24.<\/p>\n\n\n\n

Nato je aktivnost ponovno pojenjala. Zelo \u0161ibek sij nad severnim obzorjem je bil viden \u0161e v intervalih 23:15-23:45 in 00:35-00:44.<\/p>\n\n\n\n

Severni sij 21. januarja 2005 – zadnji v 23. son\u010devem ciklu<\/h2>\n\n\n\n

Severni sij 21. januarja 2005 je bil zadnji sij, ki smo ga ujeli v Sloveniji v 23. son\u010devem ciklu. S tem se je zaklju\u010dilo 5 aktivnih let, ko smo severni sij na nebu nad Slovenijo ujeli kar 9-krat. V tem \u010dasu smo pri\u0161li do razumevanja, da je severni sij v Sloveniji viden veliko bolj pogosto kot je splo\u0161no mi\u0161ljeno. Po presene\u010denju 6. aprila 2000 smo se kmalu nau\u010dili spremljati aktivnost Sonca in son\u010devega vetra. Ugotovili kdaj in kako pri\u010dakati severni sij. Videli smo kar tri velike geomagnetne viharje – 16. julija 2000<\/a>, 30. oktobra 2003<\/a> in 20. novembra 2003<\/a>. Severni sij je skoraj postal stalnica. A na naslednji severni sij, viden v Sloveniji smo morali po\u010dakati kar 6 let.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

21. januarja 2005 se je severni sij pojavil \u0161e zadnji\u010d v 23. son\u010devem ciklu. Velika in kompleksna skupina peg 10720 je 20. januarja po\u010dila z velikim bli\u0161\u010dem kategorije X7.1\/2B, ki je proti Zemlji poslal asimetri\u010den, a zelo hiter izbruh CME. Zemljo je dosegel pozno 21. januarja z visoko hitrostjo son\u010devega vetra in kaoti\u010dnim magnetnim poljem, […]<\/p>\n","protected":false},"author":1,"featured_media":255,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-254","post","type-post","status-publish","format-standard","has-post-thumbnail","category-opazovanja-severnega-sija-iz-slovenije","czr-hentry"],"yoast_head":"\nSeverni sij 21. januarja 2005 - Severnisij.si<\/title>\n<meta name=\"description\" content=\"Severni sij 21. januarja 2005 je razsvetlil severno, v mese\u010dino ovito nebo. 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