{"id":10542,"date":"2024-05-03T15:46:40","date_gmt":"2024-05-03T15:46:40","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/galaxie-m81-2\/"},"modified":"2025-06-08T22:43:50","modified_gmt":"2025-06-08T20:43:50","slug":"galaxie-m81-2","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/galaxie-m81-2\/","title":{"rendered":"Galaxie M81"},"content":{"rendered":"

Apr\u00e8s des mois de disette astro due \u00e0 la m\u00e9t\u00e9o belge plus belge que belge, j’ai pu capturer une galaxie durant quelques heures avant-hier soir.
\nVoici la galaxie spirale M81 (num\u00e9ro 81 du catalogue de l’astronome fran\u00e7ais Messier). Elle a \u00e9t\u00e9 d\u00e9couverte par l’astronome allemand Bode.
\nCette galaxie est un peu plus petite que la n\u00f4tre (la Voie lact\u00e9e) et se situe dans la constellation de la Grande Ourse \u00e0 une distance d’environ 12 millions d’ann\u00e9es-lumi\u00e8re.<\/p>\n

90 poses de 100s avec un t\u00e9lescope de 280mm ouvert \u00e0 F\/D:6.3<\/p>\n

PS: les images de diffraction sur quelques \u00e9toiles brillantes ne sont pas dues au t\u00e9lescope qui est un Schmidt-Cassegrain (donc sans support de miroir secondaire comme pour un t\u00e9lescope de Newton) mais \u00e0 cause l’antenne radio avec plein de radians qui se trouvait dans la ligne de vis\u00e9e de M81 \ud83d\ude09<\/p>\n

\"\"<\/a><\/p>\n

Dominique,<\/p>\n\n\n

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\n Veuillez voter<\/span>\n <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Apr\u00e8s des mois de disette astro due \u00e0 la m\u00e9t\u00e9o belge plus belge que belge, j’ai pu capturer une galaxie durant quelques heures avant-hier soir. Voici la galaxie spirale M81 (num\u00e9ro 81 du catalogue de l’astronome fran\u00e7ais Messier). Elle a \u00e9t\u00e9 d\u00e9couverte par l’astronome allemand Bode. Cette galaxie est un peu plus petite que la […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-10542","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=10542"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10542\/revisions"}],"predecessor-version":[{"id":11149,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10542\/revisions\/11149"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}