{"id":410,"date":"2011-08-03T13:48:46","date_gmt":"2011-08-03T11:48:46","guid":{"rendered":"http:\/\/www.astrobobo.net\/?p=410"},"modified":"2023-07-12T08:48:09","modified_gmt":"2023-07-12T06:48:09","slug":"komet-garradd","status":"publish","type":"post","link":"http:\/\/www.astrobobo.net\/?p=410","title":{"rendered":"Komet Garradd"},"content":{"rendered":"<p>Napokon, nakon dugo vremena, ju\u010der sam opet bio na Petrovoj Gori &#8211; poklopila se dobra prognoza i slobodno vrijeme i odlu\u010dio sam napokon skupiti ne\u0161to fotona. Na Petrovoj Gori pridru\u017eili su mi se Dag, Matija i Vedran. Nebo je bilo odli\u010dno, prili\u010dno tamno, \u010dak 21.64 po SQM mjerenjima koje sam radio cijelu no\u0107. Tek je nakratko vrijednost pala na 21.59.<\/p>\n<p>Da ne snimam uvijek iste stvari odlu\u010dio sam na po\u010detku usnimiti Plutona &#8211; dodu\u0161e samo jednu snimku, a drugu \u0107u probati sljede\u0107i put tako da se vidi pomak me\u0111u zvijezdama ovog udaljenog patuljastog planeta. Pluton se nalazi u blizini <a href=\"http:\/\/www.deepskypedia.com\/wiki\/Messier_24\" target=\"_blank\" rel=\"noopener\">Sagittarius Star Clouda iliti M24<\/a>. Doti\u010dni ba\u0161 fino stane u vidno polje mojeg <a href=\"http:\/\/www.recenzije.astrobobo.net\/refraktori-apo\/pentax-105-sdp.html\" target=\"_blank\" rel=\"noopener\">Pentaxa 105 SDP<\/a> u kombinaciji sa full-frame <a href=\"http:\/\/www.recenzije.astrobobo.net\/kamere\/sbig-stl-11000m-ccd-kamera.html\" target=\"_blank\" rel=\"noopener\">SBIG STL-11000 CCD kamerom<\/a>.<\/p>\n<p>Nakon toga mi je Dag skrenuo pa\u017enju na <a href=\"http:\/\/www.aerith.net\/comet\/catalog\/2009P1\/2009P1.html\" target=\"_blank\" rel=\"noopener\">komet Garradd<\/a> koji je prolazio pokraj <a href=\"http:\/\/www.deepskypedia.com\/wiki\/Messier_15\" target=\"_blank\" rel=\"noopener\">kuglastog skupa M15<\/a>. Oboje se lijepo vidjelo u 10&#215;50 dalekozoru, a Vedranov dobs je pokazivao da Garradd ima razvijen rep. I zaista, ve\u0107 na prvoj snimci se vidjelo da je rep podijeljen na dva dijela! Zbog relativno brzog gibanja kometa bio sam prisiljen koristiti ekspozicije od dvije minute pa rep nije toliko izra\u017een:<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/img838.imageshack.us\/img838\/1249\/garradd1.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter\" src=\"http:\/\/img838.imageshack.us\/img838\/1249\/garradd1.jpg\" alt=\"\" width=\"430\" height=\"314\" \/><\/a><\/p>\n<p>Ovo gore je samo brzinska obrada od 10 snimaka po 2 minute ekspozicije kroz luminance filter. Moram se jo\u0161 poigrati sa obradom da probam dobiti i komet i M15 da budu o\u0161tri, a po mogu\u0107nosti i u boji\u00a0 \ud83d\ude06 Vizualno, bilo je zanimljivo vidjeti kako su komet i M15 pribli\u017eno gotovo jednake veli\u010dine, ali M15 znatno kompaktniji i sjajniji dok je kometi sjaj brzo padao od centra. Ovako ugrubo uspore\u0111uju\u0107i sa M15 sam procjenio da je komet otprilike magnitude 8.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Napokon, nakon dugo vremena, ju\u010der sam opet bio na Petrovoj Gori &#8211; poklopila se dobra prognoza i slobodno vrijeme i odlu\u010dio sam napokon skupiti ne\u0161to fotona. Na Petrovoj Gori pridru\u017eili su mi se Dag, Matija i Vedran. Nebo je bilo odli\u010dno, prili\u010dno tamno, \u010dak 21.64 po SQM mjerenjima koje sam radio cijelu no\u0107. Tek je [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"_acf_changed":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-410","post","type-post","status-publish","format-gallery","hentry","category-astrofotografija","post_format-post-format-gallery"],"acf":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"amp_enabled":true,"_links":{"self":[{"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/posts\/410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=410"}],"version-history":[{"count":5,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/posts\/410\/revisions"}],"predecessor-version":[{"id":3330,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=\/wp\/v2\/posts\/410\/revisions\/3330"}],"wp:attachment":[{"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=410"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.astrobobo.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}