{"id":10206,"date":"2020-11-08T18:26:46","date_gmt":"2020-11-08T18:26:46","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/3-images-avec-filtre-dual-band-idas-nbx\/"},"modified":"2025-06-08T22:44:49","modified_gmt":"2025-06-08T20:44:49","slug":"3-images-avec-filtre-dual-band-idas-nbx","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/3-images-avec-filtre-dual-band-idas-nbx\/","title":{"rendered":"3 images avec filtre dual-band IDAS NBX"},"content":{"rendered":"

Je viens d’acqu\u00e9rir un filtre dual band (IDAS NBX, s\u00e9lectif en Ha et OIII, bande de 10 nm).
\nIl est destin\u00e9 avant tout aux capteurs couleurs (One Shot Color OSC).
\nL’image r\u00e9sultante est proche de ce qui serait du HOO en trichromie, avec des couleurs assez proches des couleurs r\u00e9put\u00e9es \u00ab\u00a0naturelles\u00a0\u00bb.<\/p>\n

Nuits du 3 au 7\/11\/2020 (celle du 6 \u00e9tait particuli\u00e8rement turbulente).
\nMon ciel (Ensival, pr\u00e8s de Verviers) est Bortle 5 selon ClearOutside mais plut\u00f4t SQM 19 selon mes mesures; ici la Pleine Lune \u00e9tait pr\u00e9sente.
\nL’autoroute voisine a heureusement \u00e9t\u00e9 \u00e9quip\u00e9e de lampadaires dirig\u00e9s vers le sol (mais LEDs).<\/p>\n

ZWO ASI 533MCPro, pixels de 3.76 microns, 3008×3008 pixels
\nTeleVue NP127 avec r\u00e9ducteur (focale 528 mm, F\/D=4.2) sur AP Mach1
\n1.47 arcsec\/pixel<\/p>\n

Les objets :
\nNGC6992 (un classique) – une partie des Dentelles du Cygne (Veil Nebula); 18 x 4 minutes <\/p>\n

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IC1805 – Heart nebula dans Cassiop\u00e9e, h\u00e9las un peu trop grande pour le capteur, mais on devine bien le contour; 70 x 4 minutes<\/p>\n

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IC1795 Fishhead nebula dans Cassiop\u00e9e: 54 x 4 minutes <\/p>\n

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Darks, flats et flatdarks.
\nJe n’ai pas fait de crop et j’ai am\u00e9lior\u00e9 luminosit\u00e9 et contraste apr\u00e8s calibration photom\u00e9trique.
\nTaille r\u00e9duite \u00e0 50%, jpeg quality 60.<\/p>\n\n\n

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Je viens d’acqu\u00e9rir un filtre dual band (IDAS NBX, s\u00e9lectif en Ha et OIII, bande de 10 nm). Il est destin\u00e9 avant tout aux capteurs couleurs (One Shot Color OSC). L’image r\u00e9sultante est proche de ce qui serait du HOO en trichromie, avec des couleurs assez proches des couleurs r\u00e9put\u00e9es \u00ab\u00a0naturelles\u00a0\u00bb. Nuits du 3 au […]<\/p>\n","protected":false},"author":15,"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-10206","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10206","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\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=10206"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10206\/revisions"}],"predecessor-version":[{"id":11476,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10206\/revisions\/11476"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}