{"id":9230,"date":"2023-06-21T08:00:00","date_gmt":"2023-06-21T06:00:00","guid":{"rendered":"http:\/\/www.blog.neoprog.eu\/?p=9230"},"modified":"2023-06-20T18:56:18","modified_gmt":"2023-06-20T16:56:18","slug":"le-champ-du-feu","status":"publish","type":"post","link":"https:\/\/www.blog.neoprog.eu\/index.php\/2023\/06\/21\/le-champ-du-feu\/","title":{"rendered":"Le Champ du Feu"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/champ-du-feu-1.jpg\" alt=\"\" class=\"wp-image-9231\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/champ-du-feu-1.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/champ-du-feu-1-300x169.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/champ-du-feu-1-768x432.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/champ-du-feu-1-500x281.jpg 500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Depuis l\u2019arriv\u00e9e du <a href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2023\/03\/08\/quarante-kilos\/\">t\u00e9lescope<\/a> dans ma vie d\u2019astronome tr\u00e8s amateur, je ne suis mont\u00e9 qu\u2019une fois au Champ du Feu avec le mat\u00e9riel. C\u2019\u00e9tait en plein hiver, \u00e0 l\u2019\u00e9poque o\u00f9 je ne ma\u00eetrisais pas du tout les rudiments de la mise en station d\u2019un instrument.<\/p>\n\n\n\n<p>Je me suis beaucoup <a href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2023\/02\/24\/astrophotographie\/\">entra\u00een\u00e9<\/a> dans le jardin, en pleine ville, coinc\u00e9 entre quatre cl\u00f4tures assez hautes et \u00e9bloui par le lampadaire des voisins, craignant toujours que l\u2019un d\u2019entre eux me surprenne en pleine action et me d\u00e9nonce \u00e0 la police pour voyeurisme.<\/p>\n\n\n\n<p>Vendredi soir, j\u2019ai voulu retenter l\u2019exp\u00e9dition de cet hiver, avec vingt degr\u00e9s Celsius de plus et un soleil se couchant trois heures plus tard.<\/p>\n\n\n\n<p>Exp\u00e9dition, car le <a href=\"https:\/\/www.lechampdufeu.com\">Champ du Feu<\/a> de situe \u00e0 trois quart d\u2019heure de voiture de la maison, \u00e0 plus de mille m\u00e8tres d\u2019altitude et qu\u2019il faut y transporter tout le mat\u00e9riel : monture, tube, oculaires, t\u00e9l\u00e9commande, appareil photo, si\u00e8ge, pied, bouteille d\u2019eau, boussole, niveau \u00e0 bulles, smartphone, objectifs\u2026 Un v\u00e9ritable d\u00e9m\u00e9nagement.<\/p>\n\n\n\n<p>Mon fils n\u2019a pas voulu m\u2019accompagner et ma femme n\u2019a pas eu non plus ce courage.&nbsp;<\/p>\n\n\n\n<p>Je suis arriv\u00e9 l\u00e0 haut pour le coucher du soleil. Et miracle, cette fois, je n\u2019\u00e9tais pas tout seul comme lors de ma pr\u00e9c\u00e9dente exp\u00e9dition. Trois campings car \u00e9taient stationn\u00e9s pour la nuit sur le parking et il restait quelques promeneurs sur le sommet.<\/p>\n\n\n\n<p>J\u2019ai commenc\u00e9 par mettre en station la monture \u00e9quatoriale allemande, orientation au nord, mise \u00e0 niveau, \u00e9quilibrage puis j\u2019ai install\u00e9 dessus le bo\u00eetier photo \u00e9quip\u00e9 d\u2019un 500 mm. C\u2019est avec cet attirail que j\u2019ai captur\u00e9 les derniers instants du soleil se couchant sur les Vosges. La temp\u00e9rature a vite baiss\u00e9 et j\u2019ai regrett\u00e9 de ne pas avoir mis des chaussettes et une doudoune chaude, car pass\u00e9 minuit j\u2019avais froid.<\/p>\n\n\n\n<p>C\u2019est \u00e0 peu pr\u00e8s \u00e0 ce moment qu\u2019est arriv\u00e9 le tout premier d\u2019entre eux. Une voiture blanche s\u2019est approch\u00e9e doucement de mon installation, la vitre c\u00f4t\u00e9 conducteur s\u2019est baiss\u00e9e et une personne avenante m\u2019a salu\u00e9 : \u00ab&nbsp;Bonsoir, vous faites de l\u2019astro photo ? Moi aussi. Je m\u2019installe un peu plus bas mais je viendrai vous voir apr\u00e8s.&nbsp;\u00bb. C\u2019\u00e9tait <a href=\"http:\/\/meteo-selestat.net\">Arnaud<\/a>, un photographe, astronome amateur, chasseur d\u2019orage de S\u00e9lestat.<\/p>\n\n\n\n<p>Puis une autre voiture est arriv\u00e9e, puis une autre et encore une autre jusqu\u2019\u00e0 que cinq groupes d\u2019astronomes du vendredi soir soient install\u00e9s sur le parking. Cette fois, entre deux photos, c\u2019est moi qui suis all\u00e9 les saluer. Il y avait de tout, du Dobson, du Newton, du Schmitt Cassegrain, un club, des solitaires et des curieux.<\/p>\n\n\n\n<p>Tr\u00e8s vite nous avons \u00e9chang\u00e9 sur le mat\u00e9riel, les probl\u00e8mes techniques, les photos avant d\u2019achever, chacun dans notre coin, la mise en station du mat\u00e9riel : alignement polaire, calibration du GoTo, \u00e9quilibrage fin de l\u2019\u00e9quipement.<\/p>\n\n\n\n<p>La s\u00e9ance d\u2019observation a pu commencer. Apr\u00e8s Venus, j\u2019ai point\u00e9 l\u2019amas globulaire M 92 pour tester la configuration. Mon voisin, n\u2019ayant jamais point\u00e9 l\u2019objet, est venu observer l\u2019amas et s\u2019est empress\u00e9 de retourner le pointer sur son Newton. Cependant, son objectif ce soir l\u00e0, \u00e9tait la galaxie M 101 avec la supernovae qui brille sur un de ses bras spiral\u00e9s.&nbsp;<\/p>\n\n\n\n<p>Je me suis dit que je pourrais copier et j\u2019ai point\u00e9 l\u2019objet. Sublime !&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-1024x682.jpg\" alt=\"\" class=\"wp-image-9249\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-1024x682.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-300x200.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-768x512.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-1536x1023.jpg 1536w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101-450x300.jpg 450w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-101.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">M 101 &#8211; empilement de 10 clich\u00e9s <\/figcaption><\/figure>\n\n\n\n<p>Comme mon installation semblait bien r\u00e9gl\u00e9e pour une fois, j\u2019ai quand m\u00eame fait deux calibrations et deux alignements polaires, j\u2019ai pouss\u00e9 certaines photos jusque quatre-vingt secondes de pose. Un record sans trop de train\u00e9e. J\u2019ai \u00e9galement lanc\u00e9 plusieurs s\u00e9ries d\u2019une vingtaine d\u2019images qui m\u2019ont permis d\u2019aller espionner mes voisins pendant que le bo\u00eetier faisait son travail.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-1024x683.jpg\" alt=\"\" class=\"wp-image-9255\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-1024x683.jpg 1024w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-300x200.jpg 300w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-768x512.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-1536x1024.jpg 1536w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82-450x300.jpg 450w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-82.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">M 82 avec 21 photos<\/figcaption><\/figure>\n\n\n\n<p>Voici mon tableau de chasse de la soir\u00e9e : M 92, M 101, M 82 et M 27, quatre magnifiques objets du catalogue Messier, deux galaxies, une n\u00e9buleuse et un amas globulaire. Des petites s\u00e9ries de photos que je vais essayer d\u2019empiler dans le logiciel <a href=\"https:\/\/siril.org\/fr\/\">Siril<\/a> pour voir ce que cela donne.<\/p>\n\n\n\n<p>Outre de relativement bons r\u00e9sultats photographiques en comparaison des pr\u00e9c\u00e9dentes sessions, j\u2019ai fait de belles rencontres dans la communaut\u00e9 des astronomes amateurs de la r\u00e9gion. Une exp\u00e9rience qui va certainement me motiver \u00e0 manquer des heures de sommeil pourtant pr\u00e9cieuses et que je ne vais pas rattraper au travail ni pendant les concerts \u00e0 venir.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"682\" height=\"1024\" src=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27-682x1024.jpg\" alt=\"\" class=\"wp-image-9253\" srcset=\"https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27-682x1024.jpg 682w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27-200x300.jpg 200w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27-768x1153.jpg 768w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27-1023x1536.jpg 1023w, https:\/\/www.blog.neoprog.eu\/wp-content\/uploads\/2023\/06\/M-27.jpg 1364w\" sizes=\"auto, (max-width: 682px) 100vw, 682px\" \/><figcaption class=\"wp-element-caption\">M 27 avec 19 images<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>M 92, M 101, M 82 et M 27, quatre magnifiques objets du catalogue Messier, deux galaxies, une n\u00e9buleuse et un amas globulaire <a href=\"https:\/\/www.blog.neoprog.eu\/index.php\/2023\/06\/21\/le-champ-du-feu\/\">Continuer la lecture <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":9231,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[2810,7],"tags":[],"class_list":["post-9230","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-astro","category-photo","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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