La nébuleuse et les 4 galaxies (Corine Yahia (RIGEL33))

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: NGC 7009 · Saturn nebula

La nébuleuse et les 4 galaxies, Corine Yahia (RIGEL33)

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La nébuleuse et les 4 galaxies

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

Après des vacances aoûtiennes au Camping des Causses, nous revoilà de retour en septembre pour les RAAGSO. La rencontre ne commençant que le jeudi 10 septembre, nous avons devancé l'appel et sommes arrivés le lundi, comme certains astropotes ayant eu la chance de se libérer un peu plus tôt.

Pour cette première nuit de ciel dégagé, je m'attaquais à une nébuleuse planétaire assez connue dans le bras du Verseau : la nébuleuse Saturne (NGC 7009). Elle porte ce nom à cause de son apparence qui fait penser à la planète géante gazeuse. La cible étant riquiqui dans mon champ, je décidais d'y inclure la galaxie NGC 7010. Je voulais également attraper l'amas M73 mais en vain. Mais au traitement, je me suis aperçue que trois autres galaxies trônaient dans l'image. Au final, le champ stellaire est assez sympa ;)

Ci-dessous deux versions : l'une brute, l'autre annotée.

Photo prise le 7 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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