{"id":122,"date":"2020-11-19T17:14:08","date_gmt":"2020-11-19T16:14:08","guid":{"rendered":"http:\/\/astro-bsa.com\/?page_id=122"},"modified":"2020-12-25T11:19:07","modified_gmt":"2020-12-25T10:19:07","slug":"qualite-du-ciel-en-loir-et-cher","status":"publish","type":"page","link":"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/","title":{"rendered":"QUALIT\u00c9 DU CIEL EN LOIR-ET-CHER"},"content":{"rendered":"\n<p>Voici un<a rel=\"noreferrer noopener\" href=\"http:\/\/www.lanouvellerepublique.fr\/Loir-et-Cher\/Actualite\/Environnement\/n\/Contenus\/Articles\/2012\/01\/23\/De-nouvelles-etoiles-pour-les-villes-sans-lumiere\" target=\"_blank\"> article de la Nouvelle R\u00e9publique<\/a> sur les \u00ab\u00a0villes \u00e9toil\u00e9es\u00a0\u00bb du Loir et Cher <\/p>\n\n\n\n<p>En astronomie, la qualit\u00e9 du ciel, c&rsquo;est \u00e0 dire l&rsquo;absence de pollution lumineuse, est un \u00e9l\u00e9ment essentiel. En effet si le ciel nocturne est trop \u00ab\u00a0pollu\u00e9\u00a0\u00bb par des lumi\u00e8res parasites, il ne sera pas possible d&rsquo;observer les \u00e9l\u00e9ments du ciel profond (galaxies, amas, n\u00e9buleuses) qui seront \u00ab\u00a0noy\u00e9s\u00a0\u00bb par la lumi\u00e8re.<\/p>\n\n\n\n<p>C&rsquo;est pourquoi \u00e0 BSA nous sommes tr\u00e8s vigilants \u00e0 pr\u00e9server la qualit\u00e9 de notre ciel nocturne et avons engag\u00e9 une d\u00e9marche pro-active avec les communes avoisinantes pour les inciter \u00e0 mieux contr\u00f4ler, et si possible, diminuer, leur \u00e9clairage nocturne.<\/p>\n\n\n\n<p>Nous nous appuyons pour cela des travaux d&rsquo;une association nationale : l&rsquo;association de protection du ciel et de l&rsquo;environnement nocturnes (ANPCEN), dont notre pr\u00e9sident est le correspondant pour le Loir-et-Cher. Cette association pr\u00e9pare des dossiers pour convaincre les municipalit\u00e9s des avantages d&rsquo;une bonne gestion de leur \u00e9clairage public.<\/p>\n\n\n\n<p>\u00c9galement cette association r\u00e9alise des mesures de pollution du ciel nocturne pour \u00e9tablir des cartes. A titre d&rsquo;exemple voici celles du Loir-et-Cher avant (\u00e0 gauche) et apr\u00e8s (au milieu) extinction nocturne (double-cliquez sur les cartes pour les agrandir). A ce jour 123 communes pratiquent l&rsquo;extinction nocturne ! Cela repr\u00e9sente plus de 90 000 habitants concern\u00e9s par les \u00e9conomies d\u2019\u00e9nergie et le retour du ciel \u00e9toil\u00e9 en deuxi\u00e8me partie de nuit.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<figure class=\"wp-block-gallery columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-avant-extinctions-nocturnes.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-avant-extinctions-nocturnes-150x150.jpg\" alt=\"\" data-id=\"152\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-avant-extinctions-nocturnes.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/loir-et-cher-avant-extinctions-nocturnes\/\" class=\"wp-image-152\"\/><\/a><figcaption class=\"blocks-gallery-item__caption\">avant extinction<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-apres-extinctions-nocturnes.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-apres-extinctions-nocturnes-150x150.jpg\" alt=\"\" data-id=\"151\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Loir-et-Cher-apres-extinctions-nocturnes.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/loir-et-cher-apres-extinctions-nocturnes\/\" class=\"wp-image-151\"\/><\/a><figcaption class=\"blocks-gallery-item__caption\">apr\u00e8s extinction (janvier 2011)<\/figcaption><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/carte41_extinction-janvier2012-texte.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/carte41_extinction-janvier2012-texte-150x150.jpg\" alt=\"\" data-id=\"150\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/carte41_extinction-janvier2012-texte.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/carte41_extinction-janvier2012-texte\/\" class=\"wp-image-150\"\/><\/a><figcaption class=\"blocks-gallery-item__caption\">apr\u00e8s extinction (janvier 2012)<\/figcaption><\/figure><\/li><\/ul><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group__inner-container\"><\/div><\/div>\n\n\n\n<p><span style=\"color:#d95555\" class=\"has-inline-color\">cliquer sur les images pour les agrandir<\/span><\/p>\n\n\n\n<p>Les zones rouges repr\u00e9sentent les zones les plus pollu\u00e9es (correspondant aux zones des plus grosses agglom\u00e9rations &#8211; dont Blois), les zones bleues repr\u00e9sentent les zones les moins pollu\u00e9es et on voit que notre observatoire de Fontaines-en-Sologne est tr\u00e8s bien situ\u00e9 !<\/p>\n\n\n\n<p>Sur ces cartes plus d\u00e9taill\u00e9es des environs de notre observatoire et du Loir et Cher, on peut voir \u00e9galement les heures d&rsquo;extinction de l&rsquo;\u00e9clairage public et les communes pratiquant l&rsquo;extinction (cliquez sur les cartes pour les agrandir).<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"505\" height=\"422\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41.jpg\" alt=\"\" data-id=\"252\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/sos-30-carte-pollution-lumineuse-41\/\" class=\"wp-image-252\" srcset=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41.jpg 505w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41-300x251.jpg 300w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41-500x418.jpg 500w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/SOS-30-carte-pollution-lumineuse-41-323x270.jpg 323w\" sizes=\"(max-width: 505px) 100vw, 505px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"791\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-1024x791.jpg\" alt=\"\" data-id=\"249\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/carte41_extinction_fevr2013\/\" class=\"wp-image-249\" srcset=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-1024x791.jpg 1024w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-300x232.jpg 300w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-768x593.jpg 768w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-500x386.jpg 500w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-800x618.jpg 800w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013-349x270.jpg 349w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/carte41_extinction_fevr2013.jpg 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Sur cette photo prise de notre observatoire vers minuit, on peut observer les pollutions lumineuses de Blois au Nord et de Romorantin au Sud-Est.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/Fontaines3.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" src=\"http:\/\/bsa.gbonamy.com\/wordpress\/wp-content\/uploads\/2020\/04\/Fontaines3.jpg\" alt=\"\" class=\"wp-image-201\"\/><\/a><\/figure>\n\n\n\n<p>Enfin ces deux photos prises \u00e0 2 km Sud-Est de Tour-en-Sologne montrent l&rsquo;influence de l&rsquo;extinction de l&rsquo;\u00e9clairage public : photo de gauche prise vers 23h30, photo de droite prise vers 1h.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-2 is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"447\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2.jpg\" alt=\"\" data-id=\"256\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2.jpg\" data-link=\"https:\/\/astro-bsa.com\/zoom-2007_01_11_00_09_47-31-55n-01-31-38e-2\/\" class=\"wp-image-256\" srcset=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2.jpg 640w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2-300x210.jpg 300w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2-500x349.jpg 500w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_11_00_09_47-31-55N-01-31-38E-2-387x270.jpg 387w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/figure><\/li><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"437\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1.jpg\" alt=\"\" data-id=\"798\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/zoom-2007_01_10_22_23_47-31-55n-01-31-38e-2-1\/\" class=\"wp-image-798\" srcset=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1.jpg 640w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1-300x205.jpg 300w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/12\/zoom-2007_01_10_22_23_47-31-55N-01-31-38E-2-1-500x341.jpg 500w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n\n\n\n<p>Ci-dessous, l&rsquo;impact de ces extinctions nocturnes sur la carte de pollution lumineuse du d\u00e9partement.<\/p>\n\n\n\n<figure class=\"wp-block-gallery columns-1 is-cropped wp-block-gallery-4 is-layout-flex wp-block-gallery-is-layout-flex\"><ul class=\"blocks-gallery-grid\"><li class=\"blocks-gallery-item\"><figure><a href=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1.jpg\" alt=\"\" data-id=\"162\" data-full-url=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1.jpg\" data-link=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/extinctions-nocturnes-cartes-av-ap-1\/\" class=\"wp-image-162\" srcset=\"https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1.jpg 960w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1-300x225.jpg 300w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1-768x576.jpg 768w, https:\/\/astro-bsa.com\/wp-content\/uploads\/2020\/11\/Extinctions-nocturnes-cartes-av-ap-1-360x270.jpg 360w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a><\/figure><\/li><\/ul><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Voici un article de la Nouvelle R\u00e9publique sur les \u00ab\u00a0villes \u00e9toil\u00e9es\u00a0\u00bb du Loir et Cher En astronomie, la qualit\u00e9 du ciel, c&rsquo;est \u00e0 dire l&rsquo;absence de pollution lumineuse, est un \u00e9l\u00e9ment essentiel. En effet si le ciel nocturne est trop \u00ab\u00a0pollu\u00e9\u00a0\u00bb par des lumi\u00e8res parasites, il ne sera pas possible d&rsquo;observer les \u00e9l\u00e9ments du ciel profond (galaxies, amas, n\u00e9buleuses) qui seront \u00ab\u00a0noy\u00e9s\u00a0\u00bb par la lumi\u00e8re. C&rsquo;est pourquoi \u00e0 BSA nous sommes tr\u00e8s vigilants \u00e0 pr\u00e9server la qualit\u00e9 de notre ciel&#8230;<\/p>\n<p class=\"read-more\"><a class=\"btn btn-default\" href=\"https:\/\/astro-bsa.com\/index.php\/qualite-du-ciel-en-loir-et-cher\/\">Lire la suite<span class=\"screen-reader-text\"> Lire la suite<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/pages\/122"}],"collection":[{"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/comments?post=122"}],"version-history":[{"count":38,"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/pages\/122\/revisions"}],"predecessor-version":[{"id":800,"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/pages\/122\/revisions\/800"}],"wp:attachment":[{"href":"https:\/\/astro-bsa.com\/index.php\/wp-json\/wp\/v2\/media?parent=122"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}