{"id":568,"date":"2024-02-19T16:14:00","date_gmt":"2024-02-19T15:14:00","guid":{"rendered":"http:\/\/astroenbaiedarmor.astrosurf.com\/?p=568"},"modified":"2024-05-16T09:07:16","modified_gmt":"2024-05-16T07:07:16","slug":"compte-rendu-des-nuits-des-etoiles-dhiver-2024","status":"publish","type":"post","link":"https:\/\/astroenbaiedarmor.astrosurf.com\/?p=568","title":{"rendered":"Compte-rendu des Nuits des \u00c9toiles d’Hiver 2024"},"content":{"rendered":"\n

Pour la deuxi\u00e8me fois \u00e0 La M\u00e9augon, nous avons organis\u00e9 les Nuits des \u00c9toiles d\u2019Hiver, un partenariat entre Astronomie en Baie d\u2019Armor (ABA) et la mairie de la M\u00e9augon. Malgr\u00e9 une m\u00e9t\u00e9orologie plus qu\u2019incertaine, nous avons quand m\u00eame accueilli une cinquantaine de personnes et pu voir un peu de ciel d\u2019hiver.<\/p>\n\n\n\n

\"pluie<\/a>
Une pluie d\u2019\u00e9toiles… humides. Les gouttes s\u2019allument avec le flash !<\/figcaption><\/figure>\n\n\n\n

Pendant la soir\u00e9e du vendredi 9 F\u00e9vrier, nous avons distribu\u00e9 des cartes c\u00e9lestes et point\u00e9 les plus belles constellations du ciel d’hiver : Orion, le Taureau, les G\u00e9meaux, le Cocher,… ainsi que les \u00e9toiles les plus brillantes : Sirius, Rigel et B\u00e9telgeuse, Ald\u00e9baran, Procyon, Castor & Pollux, Capella,… Une \u00e9claircie nous a permis de faire une mesure de qualit\u00e9 du ciel qui a donn\u00e9 une valeur de 20,35 magnitude par acrsec\u00b2 bien que l’\u00e9clairage public de La M\u00e9augon soit encore allum\u00e9. Dominique Lebreton en a profit\u00e9 pour d\u00e9ployer sa lunette d\u2019approche de 95mm et permettre ainsi aux visiteurs d’observer Jupiter et ses satellites : Ganym\u00e8de et Io \u00e0 l\u2019est, Callisto \u00e0 l\u2019ouest et l\u2019apparition d\u2019Europe \u00e0 l\u2019est. Avec une paire de jumelles 15×70, les Pl\u00e9iades (Messier 45) et la grande n\u00e9buleuse d\u2019Orion (Messier 42) \u00e9taient parfaitement visible au milieu de l\u2019\u00e9p\u00e9e d\u2019Orion sous le Baudrier.<\/p>\n\n\n\n

\"expliquations\"<\/a>
Peu d\u2019instruments, mais que d\u2019explications !<\/figcaption><\/figure>\n\n\n\n

Vers 23h15 heure local, l\u2019\u00e9clairage de la commune \u00e9tant \u00e9teint, une derni\u00e8re mesure de qualit\u00e9 du ciel a donn\u00e9 21,00 magnitude par acrsec\u00b2 malgr\u00e9 les \u00e9clairages de la zone du Ch\u00e2telet, de la zone industrielle et commerciale de Plaintel et de l\u2019h\u00f4pital de Saint-Brieuc dont les \u00e9clairages sont \u00e0 revoir totalement.<\/p>\n\n\n\n

\"sous<\/a>
Sous un ciel noir, des astronomes amateurs et quelques instruments, jumelles, lunette et t\u00e9lescope…<\/figcaption><\/figure>\n\n\n\n

Pour la soir\u00e9e du samedi 10 F\u00e9vrier, plusieurs membres du club, Alain Le Gu\u00e9, Jean No\u00ebl Antoine, Yann Masson, Dominique Le Breton et sa lunette d’approche de 95 mm, Jean Michel et Antoine Porcher, L\u00e9andre Cornet-Guyomar avec son t\u00e9lescope de 115 x 900 \u00e9taient pr\u00e9sents, malgr\u00e9 une m\u00e9t\u00e9o toujours incertaine. Plusieurs d’entre nous avaient apport\u00e9 leurs paires de jumelles car il n\u2019est point besoin de gros instruments pour observer le ciel \u00e9toil\u00e9\u2026 Ce fut l’occasion de lancer un petit d\u00e9fi de pointer la plan\u00e8te Uranus distante d\u2019environ 3 milliard de kilom\u00e8tres, entre les Pl\u00e9iades et Jupiter avec seulement une paire de jumelles et une carte du ciel. Ce que certains ont r\u00e9ussi ! La soir\u00e9e s’est termin\u00e9e \u00e0 la mairie de La M\u00e9augon ou Jean-Marc Labb\u00e9 nous a g\u00e9n\u00e9reusement invit\u00e9 \u00e0 partag\u00e9 une boisseau chaude et \u00e0 discuter de notre futur projet de Maison de la Nuit.<\/p>\n\n\n\n

Entre vendredi et samedi, nous estimons qu’une cinquantaine de personnes ont fait le d\u00e9placement \u00e0 La M\u00e9augon pour admirer le ciel d’hiver avec nous.<\/p>\n\n\n\n

\n
Voir le compte-rendu complet<\/a><\/div>\n<\/div>\n\n\n\n
    \n\n\n\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

    Pour la deuxi\u00e8me fois \u00e0 La M\u00e9augon, nous avons organis\u00e9 les Nuits des \u00c9toiles d\u2019Hiver, un partenariat entre Astronomie en Baie d\u2019Armor (ABA) et la mairie de la M\u00e9augon. Malgr\u00e9 une m\u00e9t\u00e9orologie plus qu\u2019incertaine, nous quand m\u00eame avons accueilli une cinquantaine de personnes et pu voir un peu de ciel d\u2019hiver…<\/p>\n","protected":false},"author":1,"featured_media":576,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","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-opacity":"","overlay-gradient":""}},"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[9],"class_list":["post-568","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saison-2023-2024","tag-manifestations"],"jetpack_featured_media_url":"https:\/\/astroenbaiedarmor.astrosurf.com\/wp-content\/uploads\/2024\/03\/Banner_Pluie_d_etoiles_humides_redim.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/posts\/568","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=568"}],"version-history":[{"count":19,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/posts\/568\/revisions"}],"predecessor-version":[{"id":648,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/posts\/568\/revisions\/648"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=\/wp\/v2\/media\/576"}],"wp:attachment":[{"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astroenbaiedarmor.astrosurf.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}