{"id":9938,"date":"2018-11-30T17:45:18","date_gmt":"2018-11-30T17:45:18","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=9938"},"modified":"2019-01-01T10:34:08","modified_gmt":"2019-01-01T10:34:08","slug":"que-voir-dans-le-ciel-nocturne-au-mois-de-decembre-2018","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/11\/30\/que-voir-dans-le-ciel-nocturne-au-mois-de-decembre-2018\/","title":{"rendered":"Que voir dans le ciel nocturne au mois de d\u00e9cembre 2018"},"content":{"rendered":"<p><strong>Une com\u00e8te visible \u00e0 l&#8217;\u0153il nu, une pluie d&#8217;\u00e9toiles filantes et le retour \u00e0 l&#8217;aube de Jupiter et Mercure : d\u00e9cembre 2018 sera riche en spectacles c\u00e9lestes.<\/strong><\/p>\n<p>Si vous avez pr\u00e9vu ne ne pas trop sortir pour observer le ciel nocturne au cours de ce mois de d\u00e9cembre 2018, vous allez sans doute changer d\u2019avis une fois que vous aurez lu les \u00e9ph\u00e9m\u00e9rides. Ce dernier mois de l\u2019ann\u00e9e nous offre en effet quelques rendez-vous astronomiques que vous ne pouvez manquer sous aucun pr\u00e9texte, \u00e0 condition que la m\u00e9t\u00e9o y mette du sien !<\/p>\n<figure id=\"attachment_6849\" aria-describedby=\"caption-attachment-6849\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1.jpg\" rel=\"lightbox[9938]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-6849\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1-450x305.jpg\" alt=\"\" width=\"450\" height=\"305\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1-450x305.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1-768x521.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1-1024x694.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/11\/venus1.jpg 1330w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-6849\" class=\"wp-caption-text\">Pensez \u00e0 bien vous couvrir pour profiter pleinement de vos observations hivernales.<\/figcaption><\/figure>\n<p>Avant de d\u00e9couvrir dans le d\u00e9tail ce que nous r\u00e9serve le ciel, je vous recommande de relire les\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/12\/22\/ciel-dhiver-5-conseils-pour-observer-sans-avoir-froid\/\" target=\"_blank\" rel=\"noopener\">5 conseils pour observer sans avoir froid\u00a0<\/a>!<!--more--><\/p>\n<p><strong>4 d\u00e9cembre\u00a0<\/strong>: c&#8217;est le d\u00e9but d&#8217;une p\u00e9riode d&#8217;une douzaine de jours id\u00e9ale pour rep\u00e9rer la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/11\/28\/comment-observer-46p-wirtanen-la-comete-de-lannee\/\" target=\"_blank\" rel=\"noopener\">com\u00e8te 46P\/Wirtanen<\/a> dont la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/05\/06\/quest-lechelle-magnitudes-astronomie\/\" target=\"_blank\" rel=\"noopener\">magnitude<\/a> devrait se situer entre 3 et 4.\u00a0<em>\u00c0 suivre aux jumelles et peut-\u00eatre \u00e0 l\u2019\u0153il nu.<\/em><\/p>\n<figure id=\"attachment_9796\" aria-describedby=\"caption-attachment-9796\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/10\/wirtanen3.jpg\" rel=\"lightbox[9938]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-9796\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/10\/wirtanen3-450x336.jpg\" alt=\"\" width=\"450\" height=\"336\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/10\/wirtanen3-450x336.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/10\/wirtanen3-768x574.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/10\/wirtanen3.jpg 847w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-9796\" class=\"wp-caption-text\">Trajectoire de la com\u00e8te 46P\/Wirtanen au cours du mois de d\u00e9cembre.<\/figcaption><\/figure>\n<p><strong>5 d\u00e9cembre\u00a0<\/strong>: \u00e0 l&#8217;aube le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/26\/vieux-croissant-40-heures-nouvelle-lune\/\" target=\"_blank\" rel=\"noopener\">vieux croissant de Lune<\/a> se d\u00e9tache au-dessus de l&#8217;horizon EST deux jours avant la Nouvelle Lune (\u00e0<em>\u00a0suivre \u00e0 l\u2019\u0153il nu<\/em>). 5 degr\u00e9s plus bas la discr\u00e8te plan\u00e8te <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/05\/12\/video-decouvrez-reliefs-de-planete-mercure\/\" target=\"_blank\" rel=\"noopener\">Mercure<\/a> (<em>\u00e0 chercher aux jumelles<\/em>) fait son retour dans le ciel du matin.<\/p>\n<p><strong>7 d\u00e9cembre<\/strong> : une <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/05\/bien-choisir-sa-premiere-lunette-astronomique\/\" target=\"_blank\" rel=\"noopener\">lunette astronomique<\/a> est indispensable pour rep\u00e9rer le point bleut\u00e9 de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/16\/voyager-2-immortalisait-neptune-triton\/\" target=\"_blank\" rel=\"noopener\">Neptune<\/a> juste \u00e0 c\u00f4t\u00e9 de celui orang\u00e9 de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/10\/21\/mars-la-planete-quon-peut-parfois-toucher-du-doigt\/\" target=\"_blank\" rel=\"noopener\">Mars<\/a>.<\/p>\n<figure id=\"attachment_9940\" aria-describedby=\"caption-attachment-9940\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune.jpg\" rel=\"lightbox[9938]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-9940\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune-450x259.jpg\" alt=\"\" width=\"450\" height=\"259\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune-450x259.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune-768x442.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune-1024x590.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2018\/11\/mars-neptune.jpg 1228w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-9940\" class=\"wp-caption-text\">Le d\u00e9fi du 7 d\u00e9cembre : rep\u00e9rer Neptune, 1500 fois moins brillante que sa voisine Mars.<\/figcaption><\/figure>\n<p><strong>9 d\u00e9cembre<\/strong> : 48 heures apr\u00e8s la Nouvelle Lune, le jeune croissant fait son retour dans le ciel du soir ; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/11\/11\/nouveau-rendez-vous-entre-saturne-et-la-lune\/\" target=\"_blank\" rel=\"noopener\">Saturne<\/a> se trouve \u00e0 quelques degr\u00e9s, un rapprochement apparent (\u00e0<em>\u00a0suivre \u00e0 l\u2019\u0153il nu<\/em>) qui a donn\u00e9 lieu \u00e0 une occultation (invisible en France) quelques heures plus t\u00f4t.<\/p>\n<p><strong>14 d\u00e9cembre<\/strong>\u00a0: en fin de nuit se produit le maximum de l\u2019essaim m\u00e9t\u00e9oritique des\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/16\/pluie-de-geminides-dans-le-ciel-du-desert-datacama\/\" target=\"_blank\" rel=\"noopener\">G\u00e9minides<\/a>, l\u2019un des plus actifs de l\u2019ann\u00e9e avec un taux horaire qui peut atteindre 120 m\u00e9t\u00e9ores. Le gros croissant de Lune (nous sommes la veille du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/03\/25\/voit-on-lors-dun-premier-quartier-de-lune\/\" target=\"_blank\" rel=\"noopener\">Premier Quartier<\/a>) ne vous emp\u00eachera pas de profiter du spectacle \u00e0 condition de vous \u00e9loigner des sources de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/09\/25\/pollution-lumineuse-france-peut-faire-beaucoup-mieux\/\" target=\"_blank\" rel=\"noopener\">pollution lumineuse<\/a>.\u00a0<em>\u00c0 suivre \u00e0 l\u2019\u0153il nu<\/em>.<\/p>\n<figure id=\"attachment_4519\" aria-describedby=\"caption-attachment-4519\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/geminides1.jpg\" rel=\"lightbox[9938]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4519\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/geminides1-450x308.jpg\" alt=\"\" width=\"450\" height=\"308\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/geminides1-450x308.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/12\/geminides1.jpg 825w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-4519\" class=\"wp-caption-text\">Pluie de G\u00e9minides dans le ciel du d\u00e9sert d&#8217;Atacama.\u00a0\u00a9 Yuri Beletsky.<\/figcaption><\/figure>\n<p><strong>15 d\u00e9cembre<\/strong> : deux jours avant son passage au plus pr\u00e8s de la Terre (11,5 millions de km), la com\u00e8te 46P\/Wirtanen passe non\u00a0loin de l\u2019<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/01\/les-hyades-et-les-pleiades-derriere-le-moulin-de-verzenay\/\" target=\"_blank\" rel=\"noopener\">amas des Pl\u00e9iades<\/a>, l\u2019occasion de faire de belles photos une fois que la Lune est couch\u00e9e.\u00a0<em>\u00c0 suivre aux jumelles et peut-\u00eatre \u00e0 l\u2019\u0153il nu.<\/em><\/p>\n<p><strong>21 d\u00e9cembre\u00a0<\/strong>: en ce jour de solstice d&#8217;hiver, un \u00e9cart apparent de moins de 1\u00b0 s\u00e9pare Mercure et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/10\/13\/admirez-une-derniere-fois-jupiter-en-soiree\/\" target=\"_blank\" rel=\"noopener\">Jupiter<\/a>\u00a0\u00e0 l&#8217;aube, un spectacle \u00e0 savourer au-dessus de l&#8217;horizon EST.\u00a0<em>\u00c0 suivre \u00e0 l\u2019\u0153il nu.<\/em><\/p>\n<p><strong>22 d\u00e9cembre\u00a0<\/strong>: Pleine Lune dans <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/03\/23\/en-images-la-majestueuse-constellation-dorion\/\" target=\"_blank\" rel=\"noopener\">Orion<\/a> (<em>\u00e0\u00a0suivre \u00e0 l\u2019\u0153il nu).\u00a0<\/em>Attendez encore quelques nuits pour admirer la plus belle constellation hivernale sans \u00eatre g\u00ean\u00e9 par S\u00e9l\u00e9n\u00e9.<\/p>\n<figure id=\"attachment_4801\" aria-describedby=\"caption-attachment-4801\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion.jpg\" rel=\"lightbox[9938]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-4801\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion-450x338.jpg\" alt=\"\" width=\"450\" height=\"338\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion-768x576.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/01\/lune_orion.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-4801\" class=\"wp-caption-text\">La Pleine Lune s&#8217;approche de la belle constellation d&#8217;Orion. @ Jean-Baptiste Feldmann<\/figcaption><\/figure>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Une com\u00e8te visible \u00e0 l&#8217;\u0153il nu, une pluie d&#8217;\u00e9toiles filantes et le retour \u00e0 l&#8217;aube de Jupiter et Mercure : d\u00e9cembre 2018 sera riche en spectacles c\u00e9lestes. Si vous avez pr\u00e9vu ne ne pas trop sortir pour observer le ciel nocturne au cours de ce mois de d\u00e9cembre 2018, vous allez sans doute changer d\u2019avis &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/11\/30\/que-voir-dans-le-ciel-nocturne-au-mois-de-decembre-2018\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Que voir dans le ciel nocturne au mois de d\u00e9cembre 2018<\/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":9939,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[1880,354,149,725,90,116,140,642,136],"class_list":["post-9938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-comete-46pwirtanen","tag-constellation-dorion","tag-ephemerides","tag-geminides","tag-jupiter","tag-mars","tag-mercure","tag-neptune","tag-saturne"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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