{"id":793325,"date":"2025-02-04T15:04:03","date_gmt":"2025-02-04T20:04:03","guid":{"rendered":"https:\/\/spaceweekly.com\/?p=793325"},"modified":"2025-02-04T15:04:03","modified_gmt":"2025-02-04T20:04:03","slug":"mapping-the-cosmic-microwave-background-with-planck-2008-version","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=793325","title":{"rendered":"Mapping the Cosmic Microwave Background with Planck [2008 version]"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div id=\"modal__tab-content--details\">\n<div class=\"modal__tab-description\">\n<p>This animation shows ESA&#8217;s Planck observatory scanning the sky and completing its first all-sky survey.<\/p>\n<p>From its orbit around the second Lagrange point (L2) of the Sun-Earth system, Planck performs a continuous scan of the sky. The spacecraft spins at 1 rpm causing the telescope&#8217;s field-of-view, which is inclined at 85\u00b0 to the spin axis, to trace out approximate great circles on the celestial sphere. Planck&#8217;s spin axis is periodically shifted by a few arcminutes per hour in ecliptic longitude (adding up to ~1\u00b0 per day), to maintain an anti-Sun pointing throughout the year. As a result, the annular region observed with the telescope slowly drifts across the sky, resulting in a complete sky survey.<\/p>\n<p>Version from July 2008.<\/p>\n<p>\u00a9ESA &#8211; European Space Agency<\/p>\n<\/p><\/div>\n<p>\t\t\t<label style=\"display: block; font-size: 0.9em; color: #8197A6; margin: 3rem 0 -1rem 0;\">Embed code<\/label><br \/>\n\t\t\t\t\t\t\t<textarea rows=\"4\" cols=\"60\"><iframe loading=\"lazy\" title=\"Mapping the Cosmic Microwave Background with Planck [2008 version]\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/dYwcfnvRFUU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/textarea><\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.esa.int\/ESA_Multimedia\/Videos\/2025\/01\/Mapping_the_Cosmic_Microwave_Background_with_Planck_2008_version?rand=772187\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This animation shows ESA&#8217;s Planck observatory scanning the sky and completing its first all-sky survey. From its orbit around the second Lagrange point (L2) of the Sun-Earth system, Planck performs&hellip; <\/p>\n","protected":false},"author":1,"featured_media":793326,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27],"tags":[],"class_list":["post-793325","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-multimedia"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/793325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=793325"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/793325\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/793326"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=793325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=793325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=793325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}