{"id":2805,"date":"2019-08-10T19:30:01","date_gmt":"2019-08-10T17:30:01","guid":{"rendered":"http:\/\/www.arnaudom.fr\/wordpress\/?page_id=2805"},"modified":"2020-08-14T14:46:52","modified_gmt":"2020-08-14T12:46:52","slug":"objets","status":"publish","type":"page","link":"https:\/\/www.arnaudom.fr\/wordpress\/objets\/","title":{"rendered":"objets"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"2805\" class=\"elementor elementor-2805\">\n\t\t\t\t\t\t<div class=\"elementor-inner\">\n\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4aec3f elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"4aec3f\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-611e2130\" data-id=\"611e2130\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3b63494d elementor-widget elementor-widget-heading\" data-id=\"3b63494d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Les diff\u00e9rents objets qu'on peut observer<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-018d772 elementor-widget elementor-widget-text-editor\" data-id=\"018d772\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>Avec de petits instruments comme le 130\/900, on a d\u00e9j\u00e0 acc\u00e8s aux principaux objets du syst\u00e8me solaire et \u00e0 de nombreux objets du ciel profond (terme qui d\u00e9nomme tous les objets ext\u00e9rieurs au syst\u00e8me solaire).<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-10a2505d elementor-widget elementor-widget-heading\" data-id=\"10a2505d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Objets du syst\u00e8me solaire :<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc8336 elementor-widget elementor-widget-text-editor\" data-id=\"dc8336\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; Lune : elle est vraiment magnifique \u00e0 observer ! Tr\u00e8s belle \u00e0 faible grossissement, elle montre une profusion de d\u00e9tails avec un grossissement important : des crat\u00e8res, des ombres, des mers, des failles&#8230; De plus, comme la surface \u00e9clair\u00e9e de la Lune varie en fonction de son cycle, on peut l&rsquo;observer plusieurs jours de suite et on verra \u00e0 chaque fois un paysage diff\u00e9rent !<\/p><p>&#8211; V\u00e9nus : aucun d\u00e9tail n&rsquo;est visible sur V\u00e9nus, mais on peut observer l&rsquo;\u00e9volution de ses phases, comme pour les phases lunaires. Elle peut \u00eatre vue sous forme d&rsquo;un croissant plus ou moins fin, ou au contraire gibbeuse et vue sous une forme plut\u00f4t ovale.<\/p><p>&#8211; Mars : je n&rsquo;ai personnellement pas eu l&rsquo;occasion de l&rsquo;observer au moment o\u00f9 j&rsquo;\u00e9cris ces lignes. Elle \u00e9tait au plus proche de la Terre en ao\u00fbt 2003, et met environ deux ans avant de se rapprocher \u00e0 nouveau de la Terre (prochaine p\u00e9riode favorable fin 2005). Cependant elle pr\u00e9sente une couleur rouge assez nette, m\u00eame sous forme d&rsquo;un tout petit point. Il semble que quand elle est suffisamment proche, on per\u00e7oit la forme de ses continents \u00e0 sa surface. A confirmer en fin d&rsquo;ann\u00e9e !<\/p><p>&#8211; Jupiter : il y a deux choses \u00e0 voir sur cette plan\u00e8te. Tout d&rsquo;abord la plan\u00e8te en elle-m\u00eame, qui montre une belle sph\u00e8re ronde, et sur laquelle on per\u00e7oit des bandes de couleur diff\u00e9rentes. Normalement on voit facilement deux bandes au centre de la plan\u00e8te, et on peut essayer de distinguer d&rsquo;autres nuances de couleur sur le globe. On peut \u00e9galement tenter de voir, lorsque celle-ci est pr\u00e9sente, la grande t\u00e2che rouge de Jupiter. Personnellement je n&rsquo;y suis pas encore parvenu. La seconde chose remarquable \u00e0 observer, c&rsquo;est la pr\u00e9sence des 4 satellites principaux de Jupiter, qui sont parfaitement visibles autour de la plan\u00e8te. Leurs positions changent constamment, ils sont parfois tous du m\u00eame c\u00f4t\u00e9, parfois certains passent derri\u00e8re la plan\u00e8te ou alors devant en projetant leur ombre sur Jupiter. C&rsquo;est une ronde incessante !<\/p><p>&#8211; Saturne : on voit parfaitement Saturne et ses anneaux, c&rsquo;est fabuleux la premi\u00e8re fois ! Ensuite on peut arriver \u00e0 voir des diff\u00e9rences de couleur entre les anneaux, des contrastes de couleur sur le globe et l&rsquo;ombre de la plan\u00e8te qui se projette sur les anneaux.<\/p><p>-Les autres plan\u00e8tes : elles sont tr\u00e8s difficiles \u00e0 voir, et trop petites pour pr\u00e9senter un int\u00e9r\u00eat. Il para\u00eet que l&rsquo;on peut distinguer des phases sur Mercure (semblables \u00e0 celles de V\u00e9nus), et que Uranus et Neptune se pr\u00e9sentent comme des tout petits points bleut\u00e9s. Je n&rsquo;en ai pas fait l&rsquo;exp\u00e9rience ! Quand \u00e0 Pluton,\u00a0 elle est impossible \u00e0 voir au 130\/900.<\/p><p>&#8211; Com\u00e8tes : les plus brillantes sont facilement visibles, notamment leur t\u00eate qui montre un centre brillant. Elle pr\u00e9sente souvent l&rsquo;aspect d&rsquo;une boule floue. A faible grossissement on peut voir leur queue quand celle-ci est suffisamment d\u00e9velopp\u00e9e.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4489b1 elementor-widget elementor-widget-heading\" data-id=\"f4489b1\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Objets du syst\u00e8me solaire :<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21e91c2 elementor-widget elementor-widget-text-editor\" data-id=\"21e91c2\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; Etoiles: il n&rsquo;y a pratiquement aucun int\u00e9r\u00eat \u00e0 regarder une \u00e9toile seule, qui reste, \u00e0 n&rsquo;importe quel grossissement, un simple point brillant. Le seul int\u00e9r\u00eat r\u00e9side dans l&rsquo;observation de sa couleur quand celle-ci est suffisamment brillante. Personnellement, j&rsquo;aime beaucoup l&rsquo;\u00e9clat jaune de Capella dans la constellation du Cocher !<\/p><p>&#8211; Etoiles doubles : ce sont des syst\u00e8mes de deux \u00e9toiles (et parfois trois ou quatre). Les plus belles sont celles qui montrent des diff\u00e9rences de couleur. La plus c\u00e9l\u00e8bre d&rsquo;entre elles est Albir\u00e9o du Cygne, visible en \u00e9t\u00e9, qui montre une \u00e9toile jaune brillante accompagn\u00e9e d&rsquo;une petite \u00e9toile bleue. En automne il y a Gamma Androm\u00e8de, qui lui ressemble beaucoup.<\/p><p>&#8211; Amas ouverts : ce sont des groupements d&rsquo;\u00e9toiles, ayant une forme plus ou moins d\u00e9finie. Il y en a de toutes sortes, de toutes tailles, de tr\u00e8s grands comme M45 (l&rsquo;amas des Pl\u00e9\u00efades) visible \u00e0 l&rsquo;oeil nu en hiver ou de tr\u00e8s petits qui montrent leurs \u00e9toiles uniquement au t\u00e9lescope avec un bon grossissement, comme M11 (l&rsquo;amas du canard sauvage) visible en \u00e9t\u00e9. Certains contiennent une dizaine d&rsquo;\u00e9toiles, et d&rsquo;autres plusieurs centaines. Il y en a pour tous les go\u00fbts et \u00e0 chaque p\u00e9riode de l&rsquo;ann\u00e9e on peut trouver des amas ouverts int\u00e9ressants.<\/p><p>\u00a0 <\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f805698 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f805698\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-9898dbf\" data-id=\"9898dbf\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d4d0dcc elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"d4d0dcc\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"199\" height=\"149\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M45i.jpg\" class=\"attachment-full size-full wp-image-2808\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M45<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5d9e944\" data-id=\"5d9e944\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f1997c8 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"f1997c8\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"185\" height=\"118\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M11i.jpg\" class=\"attachment-full size-full wp-image-2807\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M11<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e571fb elementor-widget elementor-widget-text-editor\" data-id=\"5e571fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; Amas globulaires : ce sont des groupements d&rsquo;\u00e9toiles particuliers, de forme sph\u00e9rique, qui contiennent des milliers d&rsquo;\u00e9toiles tr\u00e8s concentr\u00e9es au centre de l&rsquo;amas. On voit donc ce centre comme une t\u00e2che circulaire brillante, car les \u00e9toiles sont trop proches pour \u00eatre distingu\u00e9es s\u00e9par\u00e9ment, surtout dans un petit t\u00e9l\u00e9scope comme le 130\/900. La p\u00e9riph\u00e9rie de l&rsquo;amas peut-\u00eatre plus ou moins \u00ab\u00a0r\u00e9solu\u00a0\u00bb, c&rsquo;est-\u00e0-dire qu&rsquo;on peut y distinguer les \u00e9toiles qui commencent \u00e0 se s\u00e9parer. Ce sont souvent des objets de petite taille qu&rsquo;il faut grossir pour observer. A faible grossissement ils ont l&rsquo;aspect d&rsquo;une grosse \u00e9toile floue. Le plus gros d&rsquo;entre eux est M13 dans la constellation d&rsquo;Hercule, il y a aussi M22 dans le Sagittaire, \u00e9galement tr\u00e8s int\u00e9ressant. Ces deux objets sont visibles en \u00e9t\u00e9.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-049c03e elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"049c03e\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-089d936\" data-id=\"089d936\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f039942 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"f039942\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"140\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tM13002.jpg\" class=\"attachment-full size-full wp-image-2827\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M13<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-10d480e\" data-id=\"10d480e\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-31319d2 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"31319d2\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"192\" height=\"150\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M22i.jpg\" class=\"attachment-full size-full wp-image-2814\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M22<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd33810 elementor-widget elementor-widget-text-editor\" data-id=\"fd33810\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; N\u00e9buleuses diffuses : ce sont des nuages de gaz, qui en g\u00e9n\u00e9ral \u00e9mettent de la lumi\u00e8re ou r\u00e9fl\u00e9chissent la lumi\u00e8re d&rsquo;\u00e9toiles environnantes. Il arrive dans certains cas que ce soit des n\u00e9buleuses obscures, c&rsquo;est-\u00e0-dire des nuages de poussi\u00e8re qui cachent la lumi\u00e8re derri\u00e8re eux. Il n&rsquo;y en a pas beaucoup de visibles au 130\/900: on en trouve soit en hiver dans la constellation d&rsquo;Orion, avec en particulier M42, la plus grande et la plus belle de toutes les n\u00e9buleuses, soit en \u00e9t\u00e9 dans le Sagittaire, avec notamment M8 (la n\u00e9buleuse de la Lagune) et M17 (la n\u00e9buleuse Om\u00e9ga).<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-43b6ae5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"43b6ae5\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-8224da8\" data-id=\"8224da8\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-aa2e1b0 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"aa2e1b0\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"133\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tM42003.jpg\" class=\"attachment-full size-full wp-image-2767\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M45<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-d6d457e\" data-id=\"d6d457e\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-efa114e elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"efa114e\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"133\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M8i.jpg\" class=\"attachment-full size-full wp-image-2829\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M8<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-1449720\" data-id=\"1449720\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-36758ce elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"36758ce\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"140\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tM17001.jpg\" class=\"attachment-full size-full wp-image-2833\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M20<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-99ed403 elementor-widget elementor-widget-text-editor\" data-id=\"99ed403\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; N\u00e9buleuses plan\u00e9taires : il s&rsquo;agit d&rsquo;une enveloppe de gaz \u00e9ject\u00e9e par une \u00e9toile qui est au centre de la n\u00e9buleuse. Il en existe deux particuli\u00e8res, par leur grande taille, et qui sont visibles en \u00e9t\u00e9 et en automne : il s&rsquo;agit de M27 (n\u00e9buleuse Dumbbell) dans le Petit Renard et M57 (l&rsquo;anneau de fum\u00e9e) dans la Lyre. Les autres n\u00e9buleuses plan\u00e9taires visibles au 130\/900 sont souvent si petites qu&rsquo;elle se confondent avec des \u00e9toiles. Elles ont plus l&rsquo;aspect d&rsquo;une \u00e9toile floue, comme NGC 6826 dans le Cygne en \u00e9t\u00e9.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-13cd1d9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13cd1d9\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-c271f17\" data-id=\"c271f17\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5faa115 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"5faa115\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"417\" height=\"369\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M27200f.jpg\" class=\"attachment-full size-full wp-image-2836\" alt=\"\" srcset=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M27200f.jpg 417w, https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M27200f-300x265.jpg 300w\" sizes=\"auto, (max-width: 417px) 100vw, 417px\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M27<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-eab7862\" data-id=\"eab7862\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d34d2ba elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"d34d2ba\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"547\" height=\"456\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M57200.jpg\" class=\"attachment-full size-full wp-image-2837\" alt=\"\" srcset=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M57200.jpg 547w, https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M57200-300x250.jpg 300w\" sizes=\"auto, (max-width: 547px) 100vw, 547px\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M57<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-ce4801b\" data-id=\"ce4801b\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a3a91b3 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"a3a91b3\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"148\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/NGC6826i.jpg\" class=\"attachment-full size-full wp-image-2838\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>NGC 6826<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-8bdf150 elementor-widget elementor-widget-text-editor\" data-id=\"8bdf150\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; Galaxies : de nombreuses galaxies sont observables au 130\/900, mais par contre tr\u00e8s peu de d\u00e9tails y sont perceptibles. On peut observer leur forme g\u00e9n\u00e9rale, leur orientation et pour certaines leur centres brillant. Mais il est impossible de distinguer les bras spiraux. Il y a par exemple le couple de galaxies form\u00e9 par M81 et M82 dans la Grande Ourse qui est tr\u00e8s int\u00e9ressant, et aussi M31, la grande galaxie d&rsquo;Androm\u00e8de.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f8fdecb elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f8fdecb\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-97e2933\" data-id=\"97e2933\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-77b2ac2 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"77b2ac2\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"140\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tm81m82001.jpg\" class=\"attachment-full size-full wp-image-2840\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M81 et M82<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-786364a\" data-id=\"786364a\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0bb5a03 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"0bb5a03\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/M31i3.jpg\" class=\"attachment-full size-full wp-image-2841\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M31<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ea816f elementor-widget elementor-widget-text-editor\" data-id=\"7ea816f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-text-editor elementor-clearfix\">\n\t\t\t\t<p>&#8211; Restes de Supernova : ce sont des restes de gaz issus de l&rsquo;explosion d&rsquo;une \u00e9toile. Deux objets de cette sorte sont visibles au 130\/900. Le premier est assez facile \u00e0 voir, il s&rsquo;agit de M1, la n\u00e9buleuse du crabe, visible dans la constellation du Taureau en hiver. Le second est beaucoup plus difficile, il s&rsquo;agit de NGC 6992, la grande dentelle du Cygne, visible sous un tr\u00e8s bon ciel dans la constellation du m\u00eame nom en \u00e9t\u00e9.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-addebc5 elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"addebc5\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t\t\t<div class=\"elementor-row\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-28530f9\" data-id=\"28530f9\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ad01867 elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"ad01867\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"140\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tm1001.jpg\" class=\"attachment-full size-full wp-image-2842\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>M1<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-bea1754\" data-id=\"bea1754\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-column-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59705aa elementor-position-top elementor-vertical-align-top elementor-widget elementor-widget-image-box\" data-id=\"59705aa\" data-element_type=\"widget\" data-widget_type=\"image-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div class=\"elementor-image-box-wrapper\"><figure class=\"elementor-image-box-img\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"140\" src=\"https:\/\/www.arnaudom.fr\/wordpress\/wp-content\/uploads\/2019\/08\/tngc6992001.jpg\" class=\"attachment-full size-full wp-image-2843\" alt=\"\" \/><\/figure><div class=\"elementor-image-box-content\"><p class=\"elementor-image-box-description\"><b>NGC 6992<\/b><\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Les diff\u00e9rents objets qu&rsquo;on peut observer Avec de petits instruments comme le 130\/900, on a d\u00e9j\u00e0 acc\u00e8s aux principaux objets du syst\u00e8me solaire et \u00e0 de nombreux objets du ciel profond (terme qui d\u00e9nomme tous les objets ext\u00e9rieurs au syst\u00e8me solaire). Objets du syst\u00e8me solaire : &#8211; Lune : elle est vraiment magnifique \u00e0 observer &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.arnaudom.fr\/wordpress\/objets\/\"> <span class=\"screen-reader-text\">objets<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2805","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/comments?post=2805"}],"version-history":[{"count":12,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2805\/revisions"}],"predecessor-version":[{"id":4906,"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/pages\/2805\/revisions\/4906"}],"wp:attachment":[{"href":"https:\/\/www.arnaudom.fr\/wordpress\/wp-json\/wp\/v2\/media?parent=2805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}