{"id":17686,"date":"2026-11-06T12:04:22","date_gmt":"2026-11-06T11:04:22","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/?p=17686"},"modified":"2026-11-06T12:04:22","modified_gmt":"2026-11-06T11:04:22","slug":"the-ghost-bis","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/the-ghost-bis\/","title":{"rendered":"The Ghost bis"},"content":{"rendered":"

Hello,<\/p>\n

donc voici le r\u00e9sultat des poses suppl\u00e9mentaires.<\/p>\n

44x 5min filtre Askar D1 + 25x 5min Askar D2<\/p>\n

Ici les extraction Ha, OIII et SII issues des deux images D1 et D2. Outil utilis\u00e9 DBXtract<\/p>\n

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

Pour l’image finale la Ha est utilis\u00e9e en Luminance<\/p>\n

La couleur est obtenue pour application De la SII coloris\u00e9e en jaune dor\u00e9 sur la HOO obtenue avec l’outil Channel Combination Ha=R, OIII=G et B<\/p>\n

La HOO est pass\u00e9e par l’outil Narrowband Normalisation pour \u00e9quilibrer les rouges et le bleues.<\/p>\n

L’application de la SII est faite avec ImageBlend. Deux passes utilis\u00e9es, l’une pour ajuster les contrastes et saturation de l’image \u00ab\u00a0jaune\u00a0\u00bb en mode filtre Highpass et Overlay image de base appliqu\u00e9e sur elle m\u00eame.<\/p>\n

La seconde passe avec l’image HOO de base et le r\u00e9sultat jaune appliqu\u00e9 en mode screen.<\/p>\n

Ensuite retouches des avec l’outil selective color correction.<\/p>\n

Etoiles trait\u00e9e s\u00e9par\u00e9ment avec NB to RGB stars combination de SETI Astro puis appliqu\u00e9e sur l’image \u00ab\u00a0SHO\u00a0\u00bb avec l’outil Screenstars.<\/p>\n

Enfin petits ajustement avec Curve transformation et Histogram Transformation.<\/p>\n

Si apr\u00e8s tout cela vous n\u2019\u00eates pas fatigu\u00e9s, je ne comprends plus rien :o)<\/p>\n

Reste encore \u00e0 ajuster la position du correcteur de coma qui est trop proche du capteur. BXT n’a pas r\u00e9ussi \u00e0 tout bien corriger.<\/p>\n

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

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

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\n 9.2\/10 - (9 votes) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Hello, donc voici le r\u00e9sultat des poses suppl\u00e9mentaires. 44x 5min filtre Askar D1 + 25x 5min Askar D2 Ici les extraction Ha, OIII et SII issues des deux images D1 et D2. Outil utilis\u00e9 DBXtract Pour l’image finale la Ha est utilis\u00e9e en Luminance La couleur est obtenue pour application De la SII coloris\u00e9e en […]<\/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-17686","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17686","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=17686"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17686\/revisions"}],"predecessor-version":[{"id":17691,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17686\/revisions\/17691"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=17686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=17686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=17686"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}