La galaxie du Moulinet (Corine Yahia (RIGEL33))

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5422 · NGC 5457 · NGC 5473 · NGC 5477

La galaxie du Moulinet, Corine Yahia (RIGEL33)

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La galaxie du Moulinet

Link to TIFF/FITS: https://flic.kr/p/Nbjb6U

Powered byPixInsight

La galaxie du Moulinet

Link to TIFF/FITS: https://flic.kr/p/Nbjb6U

Lors de cette sortie « officielle » (enfin !), les conditions météo nous ont permis de sortir les instruments et les appareils photos. Nous étions en manque… les bonnes soirées étaient devenues rare depuis le début de l’année. Mais ce soir-là, le ciel voulait bien se dévoiler et se laisser admirer. Cependant, nous eûmes beaucoup de curieux, ce qui ne me permit pas d’imager immédiatement. Je m’y suis mise assez tard et entre l’humidité et les nuits raccourcies, j’ai peu de poses sur cette galaxie M101 qui se situe officiellement dans la constellation de la Grande Ourse mais qui se trouve à la frontière de trois grandes constellations de l’hémisphère nord : la Grande Ourse, le Dragon et le Bouvier. C’est l’astronome Pierre Méchain qui l’ajouta au catalogue Messier en 1781.

J’ai toutefois réussi le cadrage que j’espérais… incluant trois autres galaxies : NGC5473 (en haut à droite), NGC 5422 (en bas à droite) et, à moitié dans le cadre, NCG 5477 (au-dessus de M101). Bien sûr, en étant très attentif, on peut voir d’autres tachouilles mais elles sont trop petites pour que je puisse les identifier.

C’est la seconde fois que j’image cette galaxie et je n’étais pas satisfaite de ma première image… Là je suis plutôt contente du résultat ! ;)

Photo prise le 9 juillet 2016 à Saucats (33) – 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).

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

AAA : Astronomes et Astrographes Amateurs

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Status	Basic success
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Astrometry.net job	1284357
PixInsight job	n/a
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La galaxie du Moulinet

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