{"id":10242,"date":"2021-08-29T22:23:31","date_gmt":"2021-08-29T22:23:31","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/solaire-ha-test-filtres\/"},"modified":"2025-06-08T22:44:27","modified_gmt":"2025-06-08T20:44:27","slug":"solaire-ha-test-filtres","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/solaire-ha-test-filtres\/","title":{"rendered":"Solaire Ha – Test filtres"},"content":{"rendered":"

Bonsoir \u00e0 tous,<\/p>\n

Voici les images de la derni\u00e8re s\u00e9ance solaire \u00e0 St V\u00e9ran, en Ha.<\/p>\n

Le but \u00e9tait de tester 2 filtres.
\n1\u00b0 Un Edmund Optics Hot Mirror Extended, qui rejette les IR jusque 1700nm.
\nLa meilleure image faite avec ce filtre est plus mauvaise que celle sans le filtre.
\nLe seeing \u00e9tait moyen et une conclusion sur le filtre parait fort h\u00e2tive. D’autant plus que la semaine pass\u00e9e, une bonne image avec ce filtre a pu \u00eatre r\u00e9alis\u00e9e.
\nJe ne pr\u00e9sente ici que la meilleure image, celle faite sans ce filtre.<\/p>\n

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

2\u00b0Un filtre \u00ab\u00a0Apollo\u00a0\u00bb 1.7A en Ha, filtre \u00e0 ajouter au train optique
\nLe but de ce filtre est d’aider au rejet du flux de la photosph\u00e8re et d’am\u00e9liorer le contraste.
\nSur l’image finale, une forme d’artefact en bande horizontale apparait. C’est probablement li\u00e9 \u00e0 la gestion du flat.
\nL’ajout de ce filtre assombri fortement l’image. Il est difficile de figer le seeing dans ces conditions. Des essais compl\u00e9mentaires sont n\u00e9cessaires.<\/p>\n

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

2s\u00b0 Voici des images compl\u00e9mentaires concernant ce filtre Ha 1.7A
\nSANS le filtre:<\/p>\n

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

Deux images AVEC le filtre, d’abord avec une ASI174, puis une ASI290:<\/p>\n

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

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

Alexandre
\n2021-08-21
\nT250 Newton solaire
\nSolarSpectrum 0.3A<\/p>\n\n\n

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

Bonsoir \u00e0 tous, Voici les images de la derni\u00e8re s\u00e9ance solaire \u00e0 St V\u00e9ran, en Ha. Le but \u00e9tait de tester 2 filtres. 1\u00b0 Un Edmund Optics Hot Mirror Extended, qui rejette les IR jusque 1700nm. La meilleure image faite avec ce filtre est plus mauvaise que celle sans le filtre. Le seeing \u00e9tait moyen […]<\/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-10242","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10242","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=10242"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10242\/revisions"}],"predecessor-version":[{"id":11417,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10242\/revisions\/11417"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10242"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10242"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}