Le Fuseau mais pas horaire (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 5866

Le Fuseau mais pas horaire, Corine Yahia (RIGEL33)

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Le Fuseau mais pas horaire

Link to TIFF/FITS: https://flic.kr/p/RAQzKs

Powered byPixInsight

Le Fuseau mais pas horaire

Link to TIFF/FITS: https://flic.kr/p/RAQzKs

Alors qu’un premier appareil photo tournait sur un filé d’étoiles, et qu’un second imageait la nébuleuse du Cœur, il me fallait occuper le troisième lors de cette belle nuit à Ambeyrac, en pré-RAAGSO début septembre ! Je le mis au foyer de mon télescope et visais encore une fois la croupe de la constellation du Dragon où j’avais imagé la veille quelques galaxies bien sympathiques. Tout à côté, j’y trouvais une belle galaxie vue par la tranche, Messier 102 ou NGC 5866, soit lenticulaire, soit spirale, son orientation rendant difficile son identification. Elle est aussi appelée la galaxie du Fuseau. A sa gauche, on peut voir les petites galaxies NGC 5862, et plus haut et à gauche NGC 5870. Un examen attentif de l’image permet de voir beaucoup plus de galaxies lointaines.

Je ne suis que moyennement contente de mon traitement car je n’ai pas réussi à faire ressortir la bande de poussière qui coupe en deux la galaxie dans le sens de la longueur… Quand on visualise la full, on la devine à peine… pourtant elle est bien visible sur chaque pose brute. Enfin… l’ensemble reste sympa à voir ;)

Photo prise le 6 septembre 2016 à Ambeyrac (12) – Canon 350D (avec correcteur de coma) au foyer d’une Newton 150/750 sur monture Orion Sirius EQ-G (sans autoguidage ni goto).

60 poses de 2 mn – 15 DOF – ISO 800 – IRIS et Toshop.

AAA : Astronomes et Astrographes Amateurs

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Status	Basic success
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Astrometry.net job	1489241
PixInsight job	n/a
PixInsight queue size	n/a
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