{"id":12429,"date":"2026-05-07T08:00:00","date_gmt":"2026-05-07T06:00:00","guid":{"rendered":"https:\/\/www.blog.neoprog.eu\/?p=12429"},"modified":"2026-04-26T18:57:10","modified_gmt":"2026-04-26T16:57:10","slug":"le-sapin-de-noel","status":"publish","type":"post","link":"https:\/\/www.blog.neoprog.eu\/index.php\/2026\/05\/07\/le-sapin-de-noel\/","title":{"rendered":"Le sapin de No\u00ebl"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Moins quatre degr\u00e9s, une belle couche de neige fra\u00eeche au sol, gar\u00e9 sur un parking d\u00e9sert \u00e0 plus de mille m\u00e8tres d\u2019altitude, j\u2019\u00e9coute St\u00e9phane Gallay<\/a> raconter ses derniers concerts.<\/p>\n\n\n\n

Le sol est blanc, le ciel est noir. Une lune gibbeuse projette mon ombre sur le goudron glac\u00e9 \u00e0 c\u00f4t\u00e9 de celle de ma lunette.<\/p>\n\n\n\n

Eliott est rapidement rentr\u00e9 chez lui frigorifi\u00e9, Luc est assis sur le si\u00e8ge chauffant de sa voiture et moi j\u2019ai une couverture, trois couches de v\u00eatements, un bonnet, deux thermos ti\u00e8des et les mains glac\u00e9es.<\/p>\n\n\n\n

Je photographie un sapin de No\u00ebl dans une Licorne. Je sais, les licornes n\u2019existent pas et No\u00ebl est pass\u00e9 depuis trois mois. Pourtant c\u2019est ce que je fais. Des photos de NGC 2264, dite n\u00e9buleuse du C\u00f4ne ou du Sapin de No\u00ebl dans la constellation de la Licorne. Un minuscule triangle sombre surmont\u00e9 d\u2019une \u00e9toile, \u00e0 la base d\u2019un vaste nuage de gaz rouge. Une nouvelle cible difficile que j\u2019avais envie de capturer avant qu\u2019elle ne soit trop basse sur l\u2019horizon avec l\u2019avancement de l\u2019ann\u00e9e.<\/p>\n\n\n\n

Dans quelques semaines il n\u2019y aura plus que des galaxies dans le ciel, il faut que je termine mon catalogue automne hiver avant d\u2019attaquer les robes l\u00e9g\u00e8res de la belle saison.<\/p>\n\n\n\n

Du givre se forme sur le pare brise dans la voiture, le capteur de ma cam\u00e9ra indique -12.6 degr\u00e9s alors que le syst\u00e8me de refroidissement est \u00e0 l\u2019arr\u00eat. Malgr\u00e9 des chaussettes \u00e9paisses, des semelles chauffantes et des bottes grands froids, j\u2019ai les pieds gel\u00e9s.<\/p>\n\n\n\n

Un beau ciel, \u00e7a se m\u00e9rite. L\u2019objectif est d\u2019accumuler trois heures d\u2019images sur cette n\u00e9buleuse peu lumineuse avant de redescendre me glisser sous la couette. En attendant je suis \u00e0 moiti\u00e9 allong\u00e9 sur le si\u00e8ge passager de la voiture avec une couverture jusqu\u2019au menton \u00e0 regarder les photos de concert de St\u00e9phane Gallay sur Youtube.<\/p>\n\n\n\n

Parce qu\u2019il est impossible de lire dans la voiture, \u00e0 cause de la lumi\u00e8re qui perturberait le t\u00e9lescope. Je pourrais \u00e0 la rigueur \u00e9couter de la musique pour passer le temps mais je suis assez exigeant quant \u00e0 la qualit\u00e9 des hauts parleurs. Je pourrais observer aussi sous les \u00e9toiles mais Eliott est redescendu il y \u00e0 longtemps et il fait vraiment trop froid dehors.<\/p>\n\n\n\n

Heureusement qu\u2019il y a de la 4G au Champ du Feu. Enfin pas toujours. Mon MMS pour pr\u00e9venir mon \u00e9pouse que je suis bien arriv\u00e9 vivant n\u2019est jamais parvenu en plaine. <\/p>\n\n\n\n

Luc a sorti la Rolls Royce des lunettes, une  magnifique Takahashi pos\u00e9e sur une monture harmonique pour photographier la n\u00e9buleuse Messier 78 dans la constellation d\u2019Orion. L\u2019objet est de plus plus bas sur l\u2019horizon, ce qui lui laisse encore moins de temps que moi pour accumuler des images. La partie sombre de l\u2019objet ressort bien sur son \u00e9cran de contr\u00f4le, il devrait en sortir une belle photographie.<\/p>\n\n\n\n

Peu apr\u00e8s minuit j\u2019avais mes 36 images et moins de douze heures plus tard, apr\u00e8s cinq heures de sommeil agit\u00e9es\u00a0une photographie trait\u00e9e de la n\u00e9buleuse. L’astronomie, \u00e7a se m\u00e9rite.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Moins quatre degr\u00e9s, une belle couche de neige fra\u00eeche au sol, gar\u00e9 sur un parking d\u00e9sert \u00e0 plus de mille m\u00e8tres d\u2019altitude, j\u2019\u00e9coute St\u00e9phane Gallay raconter ses derniers concerts. 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