{"id":16562,"date":"2025-11-22T18:42:36","date_gmt":"2025-11-22T17:42:36","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/?p=16562"},"modified":"2025-11-22T18:42:36","modified_gmt":"2025-11-22T17:42:36","slug":"retour-sur-m31","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/retour-sur-m31\/","title":{"rendered":"Retour sur M31"},"content":{"rendered":"

Salut,<\/p>\n

une seconde nuit mise \u00e0 profit pour accumuler quelques vues suppl\u00e9mentaire de M31.<\/p>\n

J’ai utilis\u00e9 un filtre ColorMagic D1 cette fois. Ce filtre s\u00e9lectionne le Ha et le OIII. Je voulais booster le Ha qui \u00e9tait tr\u00e8s peu pr\u00e9sent sur l’image pr\u00e9c\u00e9demment pr\u00e9sent\u00e9e.<\/p>\n

Traitement assez complexe\u00a0 consistant \u00e0 \u00ab\u00a0blender\u00a0\u00bb les deux images pour cr\u00e9er une image RGB.<\/p>\n

Ensuite cr\u00e9ation d’une image de luminance avec l’addition de toutes les images captur\u00e9es sur les deux nuits.<\/p>\n

Enfin combinaison LRGB pour l’image finale<\/p>\n

Ici L’image avec le filtre D1<\/p>\n

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

L’image Starless du filtre TriBand<\/p>\n

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

 <\/p>\n

Et enfin le r\u00e9sultat final<\/p>\n

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

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

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\n 9.9\/10 - (9 votes) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Salut, une seconde nuit mise \u00e0 profit pour accumuler quelques vues suppl\u00e9mentaire de M31. J’ai utilis\u00e9 un filtre ColorMagic D1 cette fois. Ce filtre s\u00e9lectionne le Ha et le OIII. Je voulais booster le Ha qui \u00e9tait tr\u00e8s peu pr\u00e9sent sur l’image pr\u00e9c\u00e9demment pr\u00e9sent\u00e9e. Traitement assez complexe\u00a0 consistant \u00e0 \u00ab\u00a0blender\u00a0\u00bb les deux images pour cr\u00e9er […]<\/p>\n","protected":false},"author":10,"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-16562","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/16562","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\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=16562"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/16562\/revisions"}],"predecessor-version":[{"id":16566,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/16562\/revisions\/16566"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=16562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=16562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=16562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}