{"id":824,"date":"2019-11-17T22:29:07","date_gmt":"2019-11-17T22:29:07","guid":{"rendered":"http:\/\/sites.williams.edu\/pasachoff\/?page_id=824"},"modified":"2019-11-18T22:45:07","modified_gmt":"2019-11-18T22:45:07","slug":"contour-displays-of-the-black-drop-from-the-goode-solar-telescope-from-glenn-schneider","status":"publish","type":"page","link":"https:\/\/sites.williams.edu\/pasachoff\/contour-displays-of-the-black-drop-from-the-goode-solar-telescope-from-glenn-schneider\/","title":{"rendered":"Contour displays of the black drop from the Goode Solar Telescope from Glenn Schneider"},"content":{"rendered":"<div>\n<div>The same data, limited as only 8-bit JPG, stretched linearly over the imaging dynamic range of 25 to 158 DN using a contouring color table that stretched orange-to-blue at mid-range, and modulated top-to-bottom with 6.25% intensity contour intervals peak-to-peak. \u00a0That may not be optimal (yet), but the &#8216;black drop&#8217; signature is there. \u00a0Compare, just for example to Fig 6E of\u00a0<a href=\"http:\/\/nicmosis.as.arizona.edu:8000\/PUBLICATIONS\/ICARUS_TRANSIT.pdf\" target=\"_blank\" rel=\"noopener noreferrer\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=http:\/\/nicmosis.as.arizona.edu:8000\/PUBLICATIONS\/ICARUS_TRANSIT.pdf&amp;source=gmail&amp;ust=1574114307135000&amp;usg=AFQjCNHTv-tfXomshwVkli14auq5Ms0GJA\">http:\/\/nicmosis.as.arizona.edu:8000\/PUBLICATIONS\/ICARUS_TRANSIT.pdf<\/a>\u00a0.<\/div>\n<\/div>\n<div><\/div>\n<div><a href=\"https:\/\/sites.williams.edu\/pasachoff\/files\/2019\/11\/CONT_25-158-LIN.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-825\" src=\"https:\/\/sites.williams.edu\/pasachoff\/files\/2019\/11\/CONT_25-158-LIN-300x247.jpg\" alt=\"\" width=\"398\" height=\"330\" \/><\/a><\/div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>\n<div>With some dynamic range compression just by a log10 stretch instead from [1.4] to [2.2] dex counts, here are the same data with a slightly different visualization.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<div><a href=\"https:\/\/sites.williams.edu\/pasachoff\/files\/2019\/11\/CONT_1.4-2.2-LG.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-826\" src=\"https:\/\/sites.williams.edu\/pasachoff\/files\/2019\/11\/CONT_1.4-2.2-LG-300x247.jpg\" alt=\"\" width=\"395\" height=\"328\" \/><\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The same data, limited as only 8-bit JPG, stretched linearly over the imaging dynamic range of 25 to 158 DN using a contouring color table that stretched orange-to-blue at mid-range, and modulated top-to-bottom with 6.25% intensity contour intervals peak-to-peak. \u00a0That &hellip; <a href=\"https:\/\/sites.williams.edu\/pasachoff\/contour-displays-of-the-black-drop-from-the-goode-solar-telescope-from-glenn-schneider\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1780,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-824","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/pages\/824","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/users\/1780"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/comments?post=824"}],"version-history":[{"count":2,"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/pages\/824\/revisions"}],"predecessor-version":[{"id":834,"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/pages\/824\/revisions\/834"}],"wp:attachment":[{"href":"https:\/\/sites.williams.edu\/pasachoff\/wp-json\/wp\/v2\/media?parent=824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}