{"id":9708,"date":"2015-04-28T21:17:02","date_gmt":"2015-04-28T21:17:02","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/to-ir-or-not-to-ir\/"},"modified":"2025-06-08T22:46:04","modified_gmt":"2025-06-08T20:46:04","slug":"to-ir-or-not-to-ir","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/to-ir-or-not-to-ir\/","title":{"rendered":"To IR or not to IR…"},"content":{"rendered":"

La suite des essais en imagerie solaire Ha.
\nFurther tests in Ha solar imaging.<\/em><\/p>\n

Mon ERF est d’ancienne g\u00e9n\u00e9ration et ne rejette pas les IR comme les ERF r\u00e9cents.
\nMy ERF is of old fashion and is not rejecting IR as recent ERF do.<\/em>
\n\"\"<\/a><\/p>\n

Par mesure de pr\u00e9caution, on peut ins\u00e9rer un filtre IR dans le circuit optique pour prot\u00e9ger l’\u00e9talon.
\nAs a precaution, one can insert an IR filter in the optical path, so to protect the etalon.<\/em><\/p>\n

Voici un comparatif sans filtre IR \u00e0 gauche, et avec filtre IR \u00e0 droite.
\nHere is a comparison without IR filter on the left and with IR filter on the right.<\/em>
\n\"\"<\/a><\/p>\n

C’est l’apr\u00e8s midi, sur un champs de cailloux, avec une route asphalt\u00e9e tout pr\u00e8s. Les conditions de captures ne sont pas id\u00e9ales et la turbulence est forte.
\nIt’s the afternoon, on a gravel field and with a paved road nearby. The capturing conditions are not ideal and turbulence is strong.<\/em><\/p>\n

Mais le r\u00e9sultat est int\u00e9ressant.
\nBut the result is interesting.<\/em><\/p>\n

Alexandre
\n2015-Apr-08
\nERF
\nTaka FS128
\nBaader TZ4
\nIR\/NoIR
\nSolar Spectrum 0.3A
\nReducer
\nBasler ACA1300
\nStack of 50 pics<\/p>\n\n\n

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

La suite des essais en imagerie solaire Ha. Further tests in Ha solar imaging. Mon ERF est d’ancienne g\u00e9n\u00e9ration et ne rejette pas les IR comme les ERF r\u00e9cents. My ERF is of old fashion and is not rejecting IR as recent ERF do. Par mesure de pr\u00e9caution, on peut ins\u00e9rer un filtre IR dans […]<\/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":[3],"tags":[],"class_list":["post-9708","post","type-post","status-publish","format-standard","hentry","category-astrobricolage"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9708","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=9708"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9708\/revisions"}],"predecessor-version":[{"id":11978,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9708\/revisions\/11978"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=9708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=9708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=9708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}