[Mystère #114] La nébuleuse de la Lyre en 1885


-Le gagnant :

Rick a été le premier à trouver le sujet et Matthieu Viala a fini de trouver tous les détails, dont le nom du photographe, avec la source, bravo à lui et désolé de l’avoir oublié dans un premier temps.

-La réponse :

La nébuleuse de la Lyre photographiée en 1885 par Paul Henry.

Paul et Prosper Henry étaient des astronomes à l’Observatoire de Paris, en 1972 ils furent chargés d’un projet commencé 22 ans plus tôt et qui consistait à faire un recensement des astres visibles dans le ciel, quand ils en sont arrivés à la Voie Lactée la tâche devient trop complexe pour être réalisée à la main.

Ils ont donc inventé un télescope relié à un appareil photographique qui permettait de photographier les divers objets visibles dans la nuit.
Comme ils utilisaient encore des daguerréotypes qui nécessitaient plus d’une heure d’exposition le télescope devait bouger en permanence pour suivre précisément les mouvements des astres à photographier.

La même image réalisée par le télescope Hubble plus d’un siècle plus tard :



23 thoughts on “[Mystère #114] La nébuleuse de la Lyre en 1885

  1. Photo d’une supernova, prise milieu XXe. La forme de l’anneau est assez caractéristique. Cela ne peut pas être une nébuleuse qui est un amas de gaz.

    1. On ne peut pas éditer notre commentaire, dommage, c’est bien pratique quand on écrit des bêtises … ;)

  2. Photographie de la Nébuleuse de la Lyre, des frères Paul et Prosper Henry, prise en 1885 avec un télescope photographique qu’ils venaient d’inventer. J’ai trouvé ça sur le site du Metropolitan de NY, qui possède la photo, et après avoir tapé sur Google image « nébuleuse de la Lyre old », la photo apparait dès la première ligne.

  3. Ouh là maitre.Je vais avoir des ennuis.
    Mon « photographe » n’était pas le bon. Il était certes, le premier, mais pas avec cette plaque.
    Merci tout de même.

    1. Faut-il avoir les bonnes grâces de la Boite Verte pour être cité? Il me semble qu’il y a une différence entre «Jeno Gothard, 1886» et «Paul Henry, 1885» … Ca n’a pas une grande importance, mais je m’attendais à être cité et j’avoue une petite deception…

      1. En effet c’était toi qui avait la bonne réponse, désolé j’ai fait une grosse erreur au moment de chercher qui avait donné la bonne réponse, j’ai corrigé l’article en te citant, encore désolé :/

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