{"id":10463,"date":"2019-11-20T09:57:27","date_gmt":"2019-11-20T08:57:27","guid":{"rendered":"https:\/\/www.stelvision.com\/astro\/?page_id=10463"},"modified":"2024-09-12T14:58:48","modified_gmt":"2024-09-12T12:58:48","slug":"dans-les-etoiles-et-au-dela","status":"publish","type":"page","link":"https:\/\/www.stelvision.com\/astro\/dans-les-etoiles-et-au-dela\/","title":{"rendered":"Dans les \u00e9toiles et au-del\u00e0"},"content":{"rendered":"\n

Au-del\u00e0 du Syst\u00e8me solaire commence le reste de l’Univers, avec tous les objets qui le composent. Partez \u00e0 leur d\u00e9couverte !<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

O\u00f9 sommes-nous dans l’Univers ?<\/h2>\n\n\n\n

L’Univers est si grand qu’il est difficile d’en \u00e9valuer la taille et o\u00f9 nous nous situons \u00e0 l’int\u00e9rieur. En guise d’introduction, voici un voyage express jusqu’\u00e0 la limite de nos connaissances<\/a>.<\/p>\n\n\n\n

Nos dossiers pour comprendre et observer l’Univers lointain<\/h2>\n\n\n\r\n\r\n\r\n
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Les \u00e9toiles<\/h2>\t\r\n\t\t<\/header>\r\n\t\t

\r\n\t\t\tLes \u00e9toiles sont si nombreuses dans l’Univers qu’il est bien difficile de les d\u00e9nombrer. Les plus proches ponctuent notre le ciel nocturne et nous font r\u00eaver, alors que les plus \u00e9loign\u00e9es ne sont pas visibles individuellement… \t\t<\/p>\r\n\t\t

<\/i>Pratique : Rep\u00e9rer et comprendre l’\u00e9toile Polaire<\/a><\/p>

<\/i>Pratique : Qu\u2019est-ce qu\u2019une constellation ?<\/a><\/p>

<\/i>Pratique : Quand la Voie lact\u00e9e enchante nos nuits<\/a><\/p>

<\/i>Science : Les \u00e9toiles, naissance, vie et mort<\/a><\/p>

<\/i>Science : Qu\u2019est-ce qu\u2019une galaxie ?<\/a><\/p>

<\/i>Science : Sommes-nous vraiment des poussi\u00e8res d\u2019\u00e9toiles ?<\/a><\/p>\t<\/div>\r\n<\/section>\r\n\n\n\r\n\r\n\r\n

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Le ciel profond<\/h2>

N\u00e9buleuses, galaxies, amas d’\u00e9toiles…<\/p>\t\r\n\t\t<\/header>\r\n\t\t

\r\n\t\t\tIls font la joie de l’observateur sous un ciel bien noir : les objets du ciel profond sont souvent situ\u00e9s en dehors de notre Galaxie. Les regarder, c’est voir ce qu’il se passe \u00e0 des millions d’ann\u00e9es-lumi\u00e8re !\t\t<\/p>\r\n\t\t

<\/i>Pratique : Notre guide d’observation du ciel profond au t\u00e9lescope<\/a><\/p>

<\/i>Pratique : Notre guide d’observation du ciel profond aux jumelles<\/a><\/p>\t<\/div>\r\n<\/section>\r\n\n\n\r\n\r\n\r\n

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\r\n\t\t\"\"\t<\/div>\r\n\t
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\r\n\t\t

Les astres et ph\u00e9nom\u00e8nes exotiques<\/h2>

Trous noirs, trous blancs, quasars, pulsars, radiogalaxies, ondes gravitationnelles…<\/p>\t\r\n\t\t<\/header>\r\n\t\t

\r\n\t\t\tL’Univers est peupl\u00e9 d’astres tous plus \u00e9nigmatiques les uns que les autres. Petit panorama de ceux que nous connaissons…\t\t<\/p>\r\n\t\t

<\/i>Science : Trous noirs et autres astres exotiques <\/a><\/p>

<\/i>Science : Qu\u2019est-ce qu\u2019une onde gravitationnelle ? <\/a><\/p>

<\/i>Science : Les secrets de la mati\u00e8re et de l’\u00e9nergie noires<\/a><\/p>\t<\/div>\r\n<\/section>\r\n\n\n\r\n\r\n\r\n

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Les exoplan\u00e8tes<\/h2>\t\r\n\t\t<\/header>\r\n\t\t

\r\n\t\t\tElles tournent autour d’\u00e9toiles plus ou moins lointaines et sont parmi les astres qui stimulent le plus notre imaginaire : apr\u00e8s n’avoir \u00e9t\u00e9 qu’une hypoth\u00e8se, les exoplan\u00e8tes se d\u00e9voilent peu \u00e0 peu.\t\t<\/p>\r\n\t\t

<\/i>Science : Exoplan\u00e8tes, de nouveaux mondes \u00e0 d\u00e9couvrir<\/a><\/p>\t<\/div>\r\n<\/section>\r\n\n\n\n

<\/p>\n\n\n\n

\n\n\n\n

Auteurs & cr\u00e9dits des photos du bandeau : Didier Auberget – Georges Chassaigne – Nasa\/JPL\/Caltech – R. Hurt\/Caltech<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Au-del\u00e0 du Syst\u00e8me solaire commence le reste de l’Univers, avec tous les objets qui le composent. Partez \u00e0 leur d\u00e9couverte ! O\u00f9 sommes-nous dans l’Univers … Dans les \u00e9toiles et au-del\u00e0<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-10463","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nDans les \u00e9toiles et au-del\u00e0<\/title>\n<meta name=\"description\" content=\"Au-del\u00e0 du Syst\u00e8me solaire commence le reste de l'Univers, avec tous les objets qui le composent. 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