{"id":10850,"date":"2011-02-04T19:40:32","date_gmt":"2011-02-04T18:40:32","guid":{"rendered":"http:\/\/www.astb.se\/cassiopeiabloggen\/?p=10850"},"modified":"2011-02-04T22:18:27","modified_gmt":"2011-02-04T21:18:27","slug":"nr-31-2011","status":"publish","type":"post","link":"https:\/\/www.astb.se\/cassiopeiabloggen\/2011\/02\/04\/nr-31-2011\/","title":{"rendered":"Nr 31 2011"},"content":{"rendered":"

Nyuppt\u00e4ckt rymdsten passerar oss i kv\u00e4ll<\/h2>\n

\"\"<\/a>Hans Bengtsson<\/strong> ber\u00e4ttar f\u00f6r W-bloggen att nu i kv\u00e4ll (4.2.2011) passeras jorden av ett 4-5 meter stort stenblock – utan att sl\u00e5 ned.<\/p>\n

–\u00a0 Objektet har f\u00e5tt namnet 2011 CQ1 och uppt\u00e4cktes tidigare idag.<\/p>\n

Jag saxar fr\u00e5n Hans info p\u00e5 AstronomiGuiden.<\/p>\n

Fakta finns h\u00e4r:<\/p>\n

http:\/\/remanzacco.blogspot.com<\/a><\/p>\n

D\u00e4r kan vi l\u00e4sa att kl 19.40 UT swischade stenen f\u00f6rbi oss p\u00e5 avst\u00e5nden\u00a0 ~0.03(LD)\/0.00008(AU) – eller\u00a0 11855 km.<\/p>\n

2011 CQ1 uppt\u00e4cktes av R\u00a0 A Kowalski <\/strong>genom\u00a0 Catalina Sky Survey<\/span> med ett\u00a0 0.68-m Schmidtteleskop + CCD. Objektet r\u00f6rde sig med cirka 6 b\u00e5gsekunder i minuten och var vid uppt\u00e4ckten runt magn 19.<\/p>\n

Sen dess har stenen f\u00f6ljts vid andra observatorier. F\u00f6r n\u00e5gon timme sedan\u00a0 hade ljusstyrkan \u00f6kat till 18 magn och hastigheten l\u00e5g p\u00e5 drygt 20 b\u00e5gsekunder\/minut. S\u00e5 det g\u00e5r undan!<\/p>\n

Som ljusast ber\u00e4knas 2011 CQ1 att n\u00e5 magnitud 14.7. H\u00e4r \u00e4r efemeriden:<\/p>\n

http:\/\/www.minorplanetcenter.net\/mpec\/K11\/K11C12.h…<\/a><\/p>\n

Den som vill f\u00f6rs\u00f6ka fotografera h\u00e4ndelsen b\u00f6r l\u00e4gga in objektets namn (2011 CQ1) och obs-platsens longitud och latitud h\u00e4r, detta f\u00f6r att f\u00e5 positioner som \u00e4r ber\u00e4knade f\u00f6r obs-platsen:<\/p>\n

http:\/\/www.minorplanetcenter.net\/iau\/MPEph\/MPEph.h…<\/a><\/p>\n

\"\"<\/a>
S\u00e5 s\u00e5g det ut f\u00f6r n\u00e5gra timmar sen. Foto: G Sostero, E Guido, Tzec Maun Obs n\u00e4ra Mayhill, NM.<\/figcaption><\/figure>\n

NASA-folkets\u00a0 aktuellaste databas med uppgifter om stenen finns h\u00e4r:<\/p>\n

http:\/\/neo.jpl.nasa.gov\/risk\/2011cq1.html<\/a><\/p>\n

Larmet g\u00e5r.<\/p>\n

PS 1 kl 21.50
\n<\/strong><\/span><\/p>\n

Om jag r\u00e4knar r\u00e4tt – jag sitter i ett Malm\u00f6 d\u00e4r regnet strilar ner – s\u00e5 r\u00f6r sig \u00a0 rymdstenen just nu genom Kr\u00e4ftans stj\u00e4rnbild p\u00e5 en h\u00f6jd, har jag sett n\u00e5nstans p\u00e5 n\u00e4tet, ungef\u00e4r d\u00e4r GPS-satelliterna snurrar. Sannolikherten f\u00f6r en trafikolycka \u00e4r inte noll men n\u00e4st intill.<\/p>\n

PS 2 kl 22.30<\/strong><\/span><\/p>\n

Alla gr\u00e4ver vidare och s\u00e5 h\u00e4r bed\u00f6mer NASA “chansen” f\u00f6r att rymdstenen\/asteroiden\u00a0 ska missa jorden:<\/p>\n

99,99970000%.<\/p>\n

Sov s\u00e5 gott!<\/p>\n","protected":false},"excerpt":{"rendered":"

Nyuppt\u00e4ckt rymdsten passerar oss i kv\u00e4ll Hans Bengtsson ber\u00e4ttar f\u00f6r W-bloggen att nu i kv\u00e4ll (4.2.2011) passeras jorden av ett 4-5 meter stort stenblock – utan att sl\u00e5 ned. –\u00a0 Objektet har f\u00e5tt namnet 2011 CQ1 och uppt\u00e4cktes tidigare idag. Jag saxar fr\u00e5n Hans info p\u00e5 AstronomiGuiden. Fakta finns h\u00e4r: http:\/\/remanzacco.blogspot.com D\u00e4r kan vi l\u00e4sa… L\u00e4s mer »Nr 31 2011<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":[],"rop_publish_now_history":[],"rop_publish_now_status":"pending","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/10850"}],"collection":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/comments?post=10850"}],"version-history":[{"count":16,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/10850\/revisions"}],"predecessor-version":[{"id":10860,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/posts\/10850\/revisions\/10860"}],"wp:attachment":[{"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/media?parent=10850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/categories?post=10850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astb.se\/cassiopeiabloggen\/wp-json\/wp\/v2\/tags?post=10850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}