{"id":15540,"date":"2025-06-23T16:52:04","date_gmt":"2025-06-23T14:52:04","guid":{"rendered":"https:\/\/groupeastronomiespa.be\/astrogas\/?p=15540"},"modified":"2025-06-23T17:59:12","modified_gmt":"2025-06-23T15:59:12","slug":"lbn529-nebuleuse-de-la-grotte","status":"publish","type":"post","link":"https:\/\/groupeastronomiespa.be\/astrogas\/lbn529-nebuleuse-de-la-grotte\/","title":{"rendered":"LBN 529 – NEBULEUSE de la GROTTE"},"content":{"rendered":"

LBN 529 – NEBULEUSE de la GROTTE<\/p>\n

La n\u00e9buleuse de la Grotte (suivant les catalogues nomm\u00e9e Sh2-155, Caldwell 9 ou LBN 529) est une n\u00e9buleuse en \u00e9mission situ\u00e9e dans la constellation de C\u00e9ph\u00e9e, et distante d’environ 2400 ann\u00e9es lumi\u00e8re.
\nElle doit son nom \u00e0 une bande sombre qui se termine par une courbe brillante d\u2019\u00e9mission, \u00e9voquant l\u2019entr\u00e9e d\u2019une grotte ou d\u2019un caveau.<\/p>\n

Caract\u00e9ris\u00e9e par ses zones sombres et lumineuses, c’est une r\u00e9gion active de formation d\u2019\u00e9toiles, avec la pr\u00e9sence de jeunes \u00e9toiles et de nuages de gaz, majoritairement de l’hydrog\u00e8ne ionis\u00e9 (HII), stimul\u00e9s par la radiation d\u2019\u00e9toiles chaudes, notamment l’\u00e9toile HD 217086, une \u00e9toile de type O qui ionise le gaz environnant.
\nLes \u00e9toiles de type O sont parmi les plus chaudes, les plus massives et les plus lumineuses de l’univers observable.<\/p>\n

Ce complexe contient \u00e9galement LDN 1216, une large n\u00e9buleuse sombre.
\nLa r\u00e9flexion bleut\u00e9e \u00e0 droite de LBN524 est provoqu\u00e9e par une \u00e9toile bleue g\u00e9ante, HD216629, de magnitude 9.37 qui ionise les gaz environnant.<\/p>\n

La photo est une mosa\u00efque, assemblage de 2 clich\u00e9s.
\nUn total de presque 22h de prise de vues en S – H – O, avec des poses de 300 sec. Soit un total de 292 photos pour les 2 panneaux de la mosa\u00efque.
\nDont 120 photos en RGB pour les \u00e9toiles.<\/p>\n

T\u00e9lescope Skywatcher 250\/1200 – Monture AZEQ6 – Cam\u00e9ra: ZWO 1600MM Pro – Guidage: Cam\u00e9ra ZWO 120 MM Mini + Lunette Artesky 70\/ 400 –
\nNINA – PHD2 – GSS – SharpCap pour Polar align. – Stellarium –
\nProcess: Pixinsight<\/p>\n

Richard Hendrick<\/p>\n

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

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\n 9.5\/10 - (11 votes) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

LBN 529 – NEBULEUSE de la GROTTE La n\u00e9buleuse de la Grotte (suivant les catalogues nomm\u00e9e Sh2-155, Caldwell 9 ou LBN 529) est une n\u00e9buleuse en \u00e9mission situ\u00e9e dans la constellation de C\u00e9ph\u00e9e, et distante d’environ 2400 ann\u00e9es lumi\u00e8re. Elle doit son nom \u00e0 une bande sombre qui se termine par une courbe brillante d\u2019\u00e9mission, […]<\/p>\n","protected":false},"author":11,"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-15540","post","type-post","status-publish","format-standard","hentry","category-astrophotos"],"_links":{"self":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/15540","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\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/comments?post=15540"}],"version-history":[{"count":2,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/15540\/revisions"}],"predecessor-version":[{"id":15583,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/posts\/15540\/revisions\/15583"}],"wp:attachment":[{"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/media?parent=15540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/categories?post=15540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/groupeastronomiespa.be\/astrogas\/wp-json\/wp\/v2\/tags?post=15540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}