{"id":8149,"date":"2006-03-25T17:13:02","date_gmt":"2006-03-25T17:13:02","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/ngc-3521-sur-lequateur-au-sud-du-lion\/"},"modified":"2025-07-14T21:18:39","modified_gmt":"2025-07-14T19:18:39","slug":"ngc-3521-sur-lequateur-au-sud-du-lion","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/ngc-3521-sur-lequateur-au-sud-du-lion\/","title":{"rendered":"NGC 3521, sur l’\u00e9quateur au sud du Lion"},"content":{"rendered":"

Auteur: Olivier Schreurs (astroliver@gmail.com)<\/p>\n

Un peu oubli\u00e9e \u00e0 cause des fameux groupes voisins M65-66-NGC3628 et M95-96-105 plus au nord, cette galaxie a \u00e9t\u00e9 obtenue \u00e0 Nandrin au T400 de la SAL en 8 poses de 3min (800iso) avec l’Eos 300D. Filtre neodyme, guidage \u00e0 l’ancienne avec une L150f\/8 chinoise \u00e0 l’essai, compositage m\u00e9dian sous Iris. FOV 1\/2 degr\u00e9.
\nLes poses sont encore limit\u00e9es \u00e0 3min du fait qu’\u00e0 2,4m de focale, une d\u00e9rive en delta (non motoris\u00e9) devient perceptible d\u00e8s 4min. Un ajustement de la mise en station (bigourdan) devrait bient\u00f4t permettre de poser plus longtemps…<\/p>\n

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

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

Auteur: Olivier Schreurs (astroliver@gmail.com) Un peu oubli\u00e9e \u00e0 cause des fameux groupes voisins M65-66-NGC3628 et M95-96-105 plus au nord, cette galaxie a \u00e9t\u00e9 obtenue \u00e0 Nandrin au T400 de la SAL en 8 poses de 3min (800iso) avec l’Eos 300D. Filtre neodyme, guidage \u00e0 l’ancienne avec une L150f\/8 chinoise \u00e0 l’essai, compositage m\u00e9dian sous Iris. […]<\/p>\n","protected":false},"author":7,"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-8149","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8149","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\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=8149"}],"version-history":[{"count":3,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8149\/revisions"}],"predecessor-version":[{"id":16195,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/8149\/revisions\/16195"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=8149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=8149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=8149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}