La galaxie de Caroline & Abell 347 (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: NGC 891 · NGC 898 · NGC 906 · NGC 910

La galaxie de Caroline & Abell 347, Corine Yahia (RIGEL33)

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La galaxie de Caroline & Abell 347

Link to TIFF/FITS: https://flic.kr/p/Ewz1eU

Encore et toujours à Ambeyrac, à la veille de l'ouverture des RAAGSO, nous avons pu bénéficier de quelques heures de nuit claire. Ma cible : NGC 891, une galaxie vue par la tranche dans la constellation d'Andromède, découverte en 1783 par Caroline Herschel.

Sur Stellarium, je voyais bien ce paquet de galaxies de faible magnitude (14 pour la plus lumineuse). J'ai donc cadré de façon à en faire entrer un maximum sans trop repousser NGC 891 (en haut à gauche). Par la suite, j'ai appris que c'est un amas de galaxies dénommé Abell 347 dont l'objet le plus brillant est NGC 910. Des galaxies, il y en a : des spirales vues de face et de profil, des elliptiques, des irrégulières, des lenticulaires… bref, une belle brochette. Grâce à Thomas, un astropote, une version annotée a pu être faite qui permet de mieux les repérer (en rouge les plus importantes et en vert les plus faibles) ;)

Photo prise le 9 septembre 2015 à Ambeyrac (12) – Canon 350D défiltré (avec correcteur de coma) au foyer d'un Newton 150/750 sur monture Orion Sirius EQ-G motorisé (sans autoguidage ni goto).

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

AAA : Astronomes et Astrographes Amateurs

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Astrometry.net job	1143287
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