{"id":9180,"date":"2018-05-22T16:21:25","date_gmt":"2018-05-22T16:21:25","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=9180"},"modified":"2018-06-01T20:37:49","modified_gmt":"2018-06-01T20:37:49","slug":"dessin-astronomique-cratere-lunaire-deslandres","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/","title":{"rendered":"Dessin astronomique : le crat\u00e8re lunaire Deslandres"},"content":{"rendered":"<p><strong>Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.<\/strong><\/p>\n<p>Apr\u00e8s un dessin de la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/04\/29\/dessin-astronomique-cote-de-mer-nectar\/\" target=\"_blank\" rel=\"noopener\">Mer du Nectar<\/a>, je vous propose la r\u00e9gion du crat\u00e8re Deslandres. Ce dessin a \u00e9t\u00e9 r\u00e9alis\u00e9 le 23 avril 2018 au huiti\u00e8me jour de la lunaison avec\u00a0une\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/12\/10\/longue-vue-bon-choix-debuter-astronomie\/\" target=\"_blank\" rel=\"noopener\">longue-vue<\/a>\u00a0Bresser de 100 mm de diam\u00e8tre dot\u00e9e d\u2019un grossissement de 75 fois.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2.jpg\" rel=\"lightbox[9180]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9183\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2-450x292.jpg\" alt=\"\" width=\"450\" height=\"292\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2-450x292.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2-768x499.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2-1024x665.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres2.jpg 1793w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>La technique est la suivante :<\/p>\n<ul>\n<li>faire un croquis derri\u00e8re l\u2019oculaire pendant une trentaine de minutes avec une cotation pour indiquer les zones blanches, grises et noires.<\/li>\n<li>Reprendre le croquis ult\u00e9rieurement pour r\u00e9aliser un dessin plus r\u00e9aliste<\/li>\n<li>scanner le dessin, mettre en place un fond gris et reprendre les parties \u00e0 blanchir ou \u00e0 noircir avant d\u2019ajouter les noms, tout cela avec le logiciel PhotoFiltre<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<p>Voici le comte-rendu qui accompagne le dessin :<\/p>\n<p><em><strong>Deslandres<\/strong> est une plaine close de 234 km de diam\u00e8tre situ\u00e9e dans l&#8217;h\u00e9misph\u00e8re sud lunaire entre le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/03\/15\/paysages-lunaires-a-explorer-2-le-mur-droit\/\" target=\"_blank\" rel=\"noopener\"><strong>Mur Droit<\/strong><\/a> et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/10\/12\/cratere-lunaire-tycho\/\" target=\"_blank\" rel=\"noopener\"><strong>Tycho<\/strong><\/a>. La surface de cette plaine est relativement uniforme avec une ondulation assez nette qui la traverse en biais et n&#8217;est visible qu&#8217;avec un \u00e9clairage rasant. Quelques crat\u00e8res marquent sa bordure\u00a0: <strong>Ball<\/strong> (41 km de diam\u00e8tre) \u00e0 8 heures, <strong>Hell<\/strong> (33 km) \u00e0 9h, <strong>Hell B<\/strong> \u00e0 12h et <strong>Lexell<\/strong> (63 km) en forme de fer \u00e0 cheval \u00e0 5 h au centre duquel se d\u00e9gage une colline. On remarque \u00e0 3 heures une sorte de petit massif montagneux. Juste \u00e0 l&#8217;EST de <strong>Deslandres<\/strong> se trouve une autre plaine close plus petite (140 km), <strong>Walter<\/strong>, dont le quart NORD-EST compte de petites montagnes et 2 ou 3 craterlets. <strong>Nonius<\/strong> est un crat\u00e8re accol\u00e9 \u00e0 <strong>Walter<\/strong>. Pendant la dur\u00e9e des observations il \u00e9tait int\u00e9ressant de suivre l&#8217;avanc\u00e9e de l&#8217;\u00e9clairage solaire qui d\u00e9voilait progressivement les cr\u00eates \u00e0 l&#8217;OUEST de <strong>Deslandres<\/strong> (une r\u00e9gion tr\u00e8s accident\u00e9e) et modifiait lentement la perception que l&#8217;on avait du paysage.<\/em><\/p>\n<p>Carte de rep\u00e9rage d\u2019apr\u00e8s un dessin de\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/07\/31\/michel-deconinck-laquarelliste-ciel-nocturne\/\" target=\"_blank\" rel=\"noopener\">Michel Deconinck<\/a>\u00a0:<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres.jpg\" rel=\"lightbox[9180]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-9182\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres-447x450.jpg\" alt=\"\" width=\"447\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres-447x450.jpg 447w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres-150x150.jpg 150w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres-768x773.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/plunedeslandres.jpg 800w\" sizes=\"auto, (max-width: 447px) 100vw, 447px\" \/><\/a><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique. Apr\u00e8s un dessin de la Mer du Nectar, je vous propose la r\u00e9gion du crat\u00e8re Deslandres. Ce dessin a \u00e9t\u00e9 r\u00e9alis\u00e9 le 23 avril 2018 au huiti\u00e8me jour de la &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Dessin astronomique : le crat\u00e8re lunaire Deslandres<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":9181,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[83],"tags":[2513,1340,2338,82],"class_list":["post-9180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-la-lune","tag-cratere-deslandres","tag-dessin","tag-longue-vue","tag-lune"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dessin astronomique : le crat\u00e8re lunaire Deslandres<\/title>\n<meta name=\"description\" content=\"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Dessin astronomique : le crat\u00e8re lunaire Deslandres\" \/>\n<meta property=\"og:description\" content=\"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2018-05-22T16:21:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-06-01T20:37:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\",\"name\":\"Dessin astronomique : le crat\u00e8re lunaire Deslandres\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg\",\"datePublished\":\"2018-05-22T16:21:25+00:00\",\"dateModified\":\"2018-06-01T20:37:49+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"description\":\"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg\",\"width\":1500,\"height\":900},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\",\"name\":\"Jean-Baptiste FELDMANN\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"caption\":\"Jean-Baptiste FELDMANN\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Dessin astronomique : le crat\u00e8re lunaire Deslandres","description":"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/","og_locale":"fr_FR","og_type":"article","og_title":"Dessin astronomique : le crat\u00e8re lunaire Deslandres","og_description":"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.","og_url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/","og_site_name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","article_published_time":"2018-05-22T16:21:25+00:00","article_modified_time":"2018-06-01T20:37:49+00:00","og_image":[{"width":1500,"height":900,"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg","type":"image\/jpeg"}],"author":"Jean-Baptiste FELDMANN","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Jean-Baptiste FELDMANN","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/","name":"Dessin astronomique : le crat\u00e8re lunaire Deslandres","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg","datePublished":"2018-05-22T16:21:25+00:00","dateModified":"2018-06-01T20:37:49+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea"},"description":"Du papier, des crayons, de la patience et un bon sens de l\u2019observation, voil\u00e0 ce qu\u2019il vous faut pour vous lancer dans le dessin astronomique.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/05\/22\/dessin-astronomique-cratere-lunaire-deslandres\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/04\/deslandres3.jpg","width":1500,"height":900},{"@type":"WebSite","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/","name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","description":"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea","name":"Jean-Baptiste FELDMANN","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","caption":"Jean-Baptiste FELDMANN"},"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/9180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/comments?post=9180"}],"version-history":[{"count":5,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/9180\/revisions"}],"predecessor-version":[{"id":9189,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/9180\/revisions\/9189"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media\/9181"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media?parent=9180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/categories?post=9180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/tags?post=9180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}