{"id":9240,"date":"2011-12-26T14:59:17","date_gmt":"2011-12-26T14:59:17","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/soleil-en-ha-essais-de-grossissement\/"},"modified":"2025-06-08T22:47:10","modified_gmt":"2025-06-08T20:47:10","slug":"soleil-en-ha-essais-de-grossissement","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/soleil-en-ha-essais-de-grossissement\/","title":{"rendered":"Soleil en Ha – Essais de grossissement"},"content":{"rendered":"

Voici les r\u00e9sultats d’essais de grossissement sur le soleil en Ha.
\nLe mat\u00e9riel de base est compos\u00e9 d’une lunette Takahashi FS60 \u00e9quip\u00e9e d’un Coronado SM60 et d’une cam\u00e9ra The Imaging Source DMK31, le tout sur une monture de voyage Astrotrac.<\/p>\n

Sauf indication contraire, addition de 50 images hors d’avi cadenc\u00e9s \u00e0 30i\/s sur une dur\u00e9e de 30s. Avitack.<\/p>\n

Nous sommes le 5 ao\u00fbt 2011. Il s’agit des taches AR1 1260 et 1261, tr\u00e8s actives.<\/p>\n

Avec une barlow Takahahi x1.6
\nF ~=570mm
\nF\/D ~=9.5
\n1.7 ArcSec\/pixel
\n\"\"<\/a>
\n\"\"<\/a><\/p>\n

======================================================================
\nAvec une Powermate x2.4
\nF ~=850mm
\nF\/D ~=14
\n1.1 ArcSec\/pixel
\n\"\"<\/a>
\n\"\"<\/a><\/p>\n

======================================================================
\nAvec une combinaison de la barlow Takahashi x1.6 et de la Powermate x2.4
\nF ~=1360mm
\nF\/D ~=23
\n0.7 ArcSec\/pixel
\n\"\"<\/a>
\n\"\"<\/a><\/p>\n

======================================================================
\nFinalement, avec une Powermate 5x (au vu du r\u00e9sultat obtenu, le grossissement de la barlow s’apparente plus \u00e0 du 6.5x)
\nStack de 200 images.
\nF ~=1775mm (Ou 2300 \u00e0 6.5x)
\nF\/D ~=30 (Ou 39 \u00e0 6.5x)
\n0.5 ArcSec\/pixel (Ou 0.4 \u00e0 6.5x)
\n\"\"<\/a>
\n\"\"<\/a><\/p>\n

Alexandre<\/p>\n\n\n

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\n 10\/10 - (1 vote) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

Voici les r\u00e9sultats d’essais de grossissement sur le soleil en Ha. Le mat\u00e9riel de base est compos\u00e9 d’une lunette Takahashi FS60 \u00e9quip\u00e9e d’un Coronado SM60 et d’une cam\u00e9ra The Imaging Source DMK31, le tout sur une monture de voyage Astrotrac. Sauf indication contraire, addition de 50 images hors d’avi cadenc\u00e9s \u00e0 30i\/s sur une dur\u00e9e […]<\/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-9240","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9240","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=9240"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9240\/revisions"}],"predecessor-version":[{"id":12446,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/9240\/revisions\/12446"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=9240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=9240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=9240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}