{"id":175,"date":"2014-10-25T11:06:01","date_gmt":"2014-10-25T11:06:01","guid":{"rendered":"http:\/\/192.168.1.70\/wordpress\/?page_id=175"},"modified":"2018-12-17T10:09:37","modified_gmt":"2018-12-17T10:09:37","slug":"andromeda","status":"publish","type":"page","link":"http:\/\/www.agust.net\/wordpress\/stjornur\/andromeda\/","title":{"rendered":"Andromeda"},"content":{"rendered":"

\"\"<\/a><\/p>\n

Andromeda vetrarbrautin er gl\u00e6sileg. Smella \u00ferisvar \u00e1 myndina til a\u00f0 sj\u00e1 st\u00e6rri mynd.\u00a0<\/strong>Astronomy Picture of the Day 2008-1-24<\/a><\/em><\/span><\/p>\n

( Sj\u00e1 bloggpistilinn\u00a0Hefur \u00fe\u00fa s\u00e9\u00f0 Andromedu?<\/a>\u00a0)<\/p>\n

Andromedu vetrarbrautina m\u00e1 greina me\u00f0 berum augum \u00fear sem lj\u00f3smengun er mj\u00f6g l\u00edtil, en h\u00fan s\u00e9st vel me\u00f0 venjulegum handsj\u00f3nauka sem frekar \u00f3sk\u00fdr hno\u00f0ri \u00ed Andromedu stj\u00f6rnumerkinu. H\u00fan er \u00ed 2,8 millj\u00f3n lj\u00f3s\u00e1ra fjarl\u00e6g\u00f0, \u00feannig a\u00f0 svona leit h\u00fan \u00fat fyrir 2.800.000 \u00e1rum! \u00dearna eru milljar\u00f0ar s\u00f3lna og ekki \u00f3l\u00edklegt a\u00f0 einhvers sta\u00f0ar s\u00e9 viti bori\u00f0 l\u00edf. Hugsanlega er \u00fear einhver a\u00f0 vir\u00f0a fyrir s\u00e9r okkar vetrarbraut \ud83d\ude42<\/p>\n

Stj\u00f6rnufr\u00e6\u00f0ingar nefna hana oft M31, en h\u00fan er svok\u00f6llu\u00f0 \u00feyrillvetrarbraut eins og okkar eigin vetrarbraut. \u00dear eru l\u00edklega meira en 400 milljar\u00f0ar s\u00f3lna.\u00a0 Hugsum okkur a\u00f0 a\u00f0eins ein s\u00f3l af millj\u00f3n hafi reikistj\u00f6rnu sem l\u00edkist j\u00f6r\u00f0inni og a\u00f0 \u00fear hafi l\u00edf \u00ed einhverri mynd \u00fer\u00f3ast. \u00cd Andromedu v\u00e6ru \u00fe\u00e1 400 millj\u00f3n \u00feannig “jar\u00f0ir”.\u00a0 Au\u00f0vita\u00f0 vitum vi\u00f0 n\u00e1kv\u00e6mlega ekkert um \u00feetta, en \u00fea\u00f0 er gaman a\u00f0 l\u00e1ta hugann reika. Hugsum okkur aftur a\u00f0 vi\u00f0 viljum n\u00e1 sambandi vi\u00f0 einhverja viti borna veru \u00fear og sendum skilabo\u00f0 me\u00f0 \u00f6flugum \u00fatvarpssendi. Vi\u00f0komandi f\u00e6r ekki skeyti\u00f0 fyrr en eftir 2,8 millj\u00f3n \u00e1r og vi\u00f0 hugsanlegt svar \u00ed fyrsta lagi eftir 5,6 millj\u00f3n \u00e1r!\u00a0 \ud83d\ude42<\/p>\n

Reyndu a\u00f0 koma auga \u00e1 Andromedu n\u00e6st \u00feegar \u00fe\u00fa ert undir stj\u00f6rnubj\u00f6rtum himni \u00fear sem lj\u00f3smengun er l\u00edtil. \u00de\u00fa getur nota\u00f0 stj\u00f6rnukorti\u00f0 sem er ne\u00f0st \u00e1 s\u00ed\u00f0unni til a\u00f0 finna hana.<\/span><\/p>\n

(Or\u00f0i\u00f0 “vetrarbraut” er h\u00e9r nota\u00f0 fyrir “galaxy” \u00fear sem vi\u00f0 eigum ekkert gott \u00edslenskt or\u00f0 yfir fyrirb\u00e6ri\u00f0. Or\u00f0i\u00f0 stj\u00f6rnu\u00feoka er ekki n\u00f3gu gott \u00fev\u00ed \u00fea\u00f0 \u00fe\u00fd\u00f0ir eiginlega ryksk\u00fd \u00ed himingeimnum. \u00a0 Or\u00f0i\u00f0 stj\u00f6rnu\u00feoka er einnig oft nota\u00f0 fyrir galaxy og einnig \u00f3reglulegar stj\u00f6rnu\u00feyrpingar).<\/span><\/p>\n

\u00deegar bloggarinn var a\u00f0 taka mynd af Hale Bopp halastj\u00f6rnunni \u00ed mars 1997 var hann svo heppinn a\u00f0 Andromeda vetrarbrautin var \u00fear n\u00e1l\u00e6gt og s\u00e9st h\u00fan ne\u00f0st til h\u00e6gri \u00e1 myndinni.<\/p>\n

\u00c1 myndinni m\u00e1 einnig sj\u00e1 aragr\u00faa stjarna sem eru \u00f3s\u00fdnilegar me\u00f0 berum augum. Filma var Kodak PPF Pro 400 ASA. Linsa 135mm, Lj\u00f3sop 3,5. L\u00fdsingart\u00edmi um 2 m\u00edn\u00faur. Stj\u00f6rnuhimninum var fylgt eftir me\u00f0\u00a0heimasm\u00ed\u00f0u\u00f0u\u00a0m\u00f3tordrif<\/em><\/a>i.<\/em><\/p>\n

\"haleBopp-andromeda-aurora-crop-saturation-700\"<\/a><\/div>\n

\u00a0Hale Bopp, Andromeda og nor\u00f0urlj\u00f3s \u00ed mars 1997<\/strong><\/p>\n

Andromedu m\u00e1 sj\u00e1 \u00e1 stj\u00f6rnukortinu h\u00e9r fyrir ne\u00f0an sem gildir fyrir 4. febr\u00faar 2008 kl. 21.00<\/p>\n

Svona kort er h\u00e6gt a\u00f0 sj\u00e1 \u00e1 vefs\u00ed\u00f0unni\u00a0Heavens Above.<\/a>
\n<\/strong><\/em>\u00dear er h\u00e6gt a\u00f0 teikna kort fyrir hva\u00f0a sta\u00f0 sem er \u00e1 j\u00f6r\u00f0inni, og n\u00e1nast hva\u00f0a t\u00edma sem er.<\/p>\n

\u00deetta er mj\u00f6g \u00e1hugaver\u00f0 vefs\u00ed\u00f0a. Me\u00f0 \u00fev\u00ed a\u00f0 skr\u00e1 sig sem notanda (Register as an user) og gefa upp sta\u00f0 (Observing site, t.d. Reykjav\u00edk) er h\u00e6gt a\u00f0 sj\u00e1 stj\u00f6rnukort fyrir himininn eins og hann er n\u00fana, mi\u00f0a\u00f0 vi\u00f0 sta\u00f0inn sem gefinn er upp.\u00a0 \u00ddmislegt fleira forvitnilegt er \u00fear, svo sem uppl\u00fdsingar um brautir gervihnatta, halastj\u00f6rnur, o.fl.<\/p>\n

Andromeda er mj\u00f6g h\u00e1tt \u00e1 himninum \u00ed vestur\u00e1tt um kl 21.\u00a0\u00a0 Au\u00f0velt er a\u00f0 finna st\u00f3ra “W” stj\u00f6rnumerki\u00f0 Cassiopeia, en Andromeda er n\u00e1nast “undir” W-inu. Ef \u00fe\u00fa veist hvar p\u00f3lstjarnan er, \u00fe\u00e1 skaltu draga \u00edmynda\u00f0a l\u00ednu \u00fea\u00f0an og \u00ed gegn um W og framlengja hana s\u00ed\u00f0an \u00fear til h\u00fan sker Andromedu vetrarbrautina. Nota\u00f0u venjulegan handsj\u00f3nauka.<\/p>\n

\"Stjornukort\"<\/a><\/div>\n

\u00a0Myndin efst er fr\u00e1\u00a0Astronomy Picture of the Day (APOD)<\/a><\/em><\/span><\/strong><\/p>\n

\u00a0<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Andromeda vetrarbrautin er gl\u00e6sileg. Smella \u00ferisvar \u00e1 myndina til a\u00f0 sj\u00e1 st\u00e6rri mynd.\u00a0Astronomy Picture of the Day 2008-1-24 ( Sj\u00e1 bloggpistilinn\u00a0Hefur \u00fe\u00fa s\u00e9\u00f0 Andromedu?\u00a0) Andromedu vetrarbrautina m\u00e1 greina me\u00f0 berum augum \u00fear sem lj\u00f3smengun er mj\u00f6g l\u00edtil, en h\u00fan s\u00e9st vel me\u00f0 venjulegum handsj\u00f3nauka sem frekar \u00f3sk\u00fdr hno\u00f0ri \u00ed Andromedu stj\u00f6rnumerkinu. H\u00fan er \u00ed 2,8…<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":49,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/pages\/175"}],"collection":[{"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/comments?post=175"}],"version-history":[{"count":3,"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/pages\/175\/revisions"}],"predecessor-version":[{"id":2142,"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/pages\/175\/revisions\/2142"}],"up":[{"embeddable":true,"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/pages\/49"}],"wp:attachment":[{"href":"http:\/\/www.agust.net\/wordpress\/wp-json\/wp\/v2\/media?parent=175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}