{"id":10481,"date":"2023-12-31T19:47:43","date_gmt":"2023-12-31T19:47:43","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/ngc6888-nebuleuse-du-croissant\/"},"modified":"2025-06-08T22:43:55","modified_gmt":"2025-06-08T20:43:55","slug":"ngc6888-nebuleuse-du-croissant","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/ngc6888-nebuleuse-du-croissant\/","title":{"rendered":"NGC6888 – n\u00e9buleuse du Croissant"},"content":{"rendered":"

Tous mes voeux pour 2024 !<\/p>\n

Dans la foul\u00e9e des f\u00eates de fin d\u2019ann\u00e9e et de leurs repas souvent fort riches, retour \u00e0 la di\u00e8te : un petit croissant pour le petit-d\u00e9j demain ?<\/p>\n

La n\u00e9buleuse du Croissant (NGC 6888) est une n\u00e9buleuse en \u00e9mission situ\u00e9e dans la constellation du Cygne, \u00e0 environ 5000 AL de nous.<\/p>\n

Et pour ceux qui seraient en manque de bulles, on devine aussi (coin inf\u00e9rieur gauche) la tr\u00e8s d\u00e9licate n\u00e9buleuse de la Bulle (PN G75.5+1.7)\u2026 Mais c\u2019est une
\nbulle de savon, pas de champagne, d\u00e9sol\u00e9.
\nC’est une n\u00e9buleuse plan\u00e9taire situ\u00e9e \u00e0 environ 4000 AL. Sa d\u00e9couverte est r\u00e9cente (2008) et est due \u00e0 un astronome amateur. <\/p>\n

89 poses de 4 minutes (55 en Ha et 34 en OIII, filtres Astronomik 12 nm) r\u00e9parties sur 13 nuits, de juin \u00e0 ao\u00fbt 2023.<\/p>\n

Cam\u00e9ra ASI1600MMPro, pixels de 3.8 microns
\nLunette TeleVue NP127, focale 660 mm \u00e0 F5.2, r\u00e9solution originale 1.19 arcsec\/pixel
\nMonture AP Mach1, guid\u00e9e<\/p>\n

Capture avec MaxIm\/DL et traitement avec PixInsight (dont deconvolution avec BlurXterminator.<\/p>\n

L’image finale a \u00e9t\u00e9 r\u00e9duite \u00e0 50% de sa taille originale. Qualit\u00e9 JPEG 75%.<\/p>\n

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

Bon Rutsch en 2024 !<\/p>\n

Pierre<\/p>\n\n\n

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Tous mes voeux pour 2024 ! Dans la foul\u00e9e des f\u00eates de fin d\u2019ann\u00e9e et de leurs repas souvent fort riches, retour \u00e0 la di\u00e8te : un petit croissant pour le petit-d\u00e9j demain ? La n\u00e9buleuse du Croissant (NGC 6888) est une n\u00e9buleuse en \u00e9mission situ\u00e9e dans la constellation du Cygne, \u00e0 environ 5000 AL […]<\/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-10481","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10481","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=10481"}],"version-history":[{"count":1,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10481\/revisions"}],"predecessor-version":[{"id":11215,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/10481\/revisions\/11215"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=10481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=10481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=10481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}