{"id":17369,"date":"2026-09-18T21:33:14","date_gmt":"2026-09-18T19:33:14","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/?p=17369"},"modified":"2026-09-18T21:33:14","modified_gmt":"2026-09-18T19:33:14","slug":"double-stack-solaire-reglage-de-point-de-fonctionnement-de-filtres","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/double-stack-solaire-reglage-de-point-de-fonctionnement-de-filtres\/","title":{"rendered":"Double stack solaire, r\u00e9glage de point de fonctionnement de filtres"},"content":{"rendered":"

Un classique en double stack Ha solaire consiste \u00e0 ajouter un \u00e9talon \u00e0 air en compl\u00e9ment d’un filtre Ha primaire.<\/p>\n

Ici, en sus d’un \u00e9talon SolarSpactrum Ha 0.3A, un \u00e9talon \u00e0 air Lunt est ajout\u00e9 dans le train optique.<\/p>\n

Ensuite, l’\u00e9talon \u00e0 air est ajust\u00e9 par inclinaison, afin de d\u00e9tecter le meilleur r\u00e9glage.
\nUne d\u00e9tection par disparition du double limbe est tent\u00e9e; le montage est assez \u00ab\u00a0robuste\u00a0\u00bb, \u00e0 mon sens parce que l’\u00e9talon primaire est d\u00e9j\u00e0 tr\u00e8s performant. L’\u00e9talon secondaire am\u00e9liore le contraste, mais d\u00e9terminer sa position id\u00e9ale s’est av\u00e9r\u00e9 difficile; la plage de r\u00e9glage se r\u00e9v\u00e8le large.<\/p>\n

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Voici les r\u00e9sultats, d’abord avec un Lunt 35 comme \u00e9talon double stack, image de la surface.<\/p>\n

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Inversons les r\u00f4les, une fois la meilleure position d’un filtre \u00e0 air d\u00e9termin\u00e9e, ajustons la temp\u00e9rature optimale de l’\u00e9talon primaire en mica (SolarSpectrum).<\/p>\n

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Ensuite \u00e9tape, l’inclinaison d’un autre etalon double stack, lunt 40 ici, est test\u00e9e.<\/p>\n

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La diff\u00e9rence de qualit\u00e9 des images est li\u00e9e \u00e0 divers facteurs: prise de vue, seeing, nombre d’images durant le stack, traitement plus ou moins pouss\u00e9, etc.<\/p>\n

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Alexandre<\/p>\n

10, 11 et 12 ao\u00fbt 2025<\/p>\n

Lunette ~100mm<\/p>\n

T\u00e9l\u00e9centrique x5<\/p>\n

SolarSpectrum ASO 0.3A<\/p>\n

Lunt 35 ou 40<\/p>\n

ASI174MM<\/p>\n\n\n

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\n 9.5\/10 - (2 votes) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Un classique en double stack Ha solaire consiste \u00e0 ajouter un \u00e9talon \u00e0 air en compl\u00e9ment d’un filtre Ha primaire. Ici, en sus d’un \u00e9talon SolarSpactrum Ha 0.3A, un \u00e9talon \u00e0 air Lunt est ajout\u00e9 dans le train optique. Ensuite, l’\u00e9talon \u00e0 air est ajust\u00e9 par inclinaison, afin de d\u00e9tecter le meilleur r\u00e9glage. Une d\u00e9tection […]<\/p>\n","protected":false},"author":16,"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-17369","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17369","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\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=17369"}],"version-history":[{"count":2,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17369\/revisions"}],"predecessor-version":[{"id":17371,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/17369\/revisions\/17371"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=17369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=17369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=17369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}