Messier 104 ou Galaxie du Sombrero ou NGC 4594 (Lacheheb)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero Galaxy

Messier 104 ou Galaxie du Sombrero ou NGC 4594, Lacheheb

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Messier 104 ou Galaxie du Sombrero ou NGC 4594

Revision title: M 104 New Version

Link: https://1drv.ms/i/s!ApfteboMEzL6vkgKPhjI3d2X7-V7?e=shb7eT

Link to TIFF/FITS: https://1drv.ms/i/s!ApfteboMEzL6vksY6eaB_SgMS7LO?e=pp7hee

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Messier 104 ou Galaxie du Sombrero ou NGC 4594

Revision title: M 104 New Version

Link: https://1drv.ms/i/s!ApfteboMEzL6vkgKPhjI3d2X7-V7?e=shb7eT

Link to TIFF/FITS: https://1drv.ms/i/s!ApfteboMEzL6vksY6eaB_SgMS7LO?e=pp7hee

M104 (NGC 4594, aussi appelée galaxie du Sombrero) est une galaxie spirale vue par la tranche située dans la constellation de la Vierge à une distance d'environ 47 millions d'années-lumière de la Voie lactée.
La classe de luminosité de M104 est I et elle présente une large raie HI. C'est aussi une galaxie LINER, c'est-à-dire une galaxie dont le noyau présente un spectre d'émission caractérisé par de larges rayons d'atomes faiblement ionisés. De plus, c'est une galaxie active de type Seyfert 2.
Avec une brillance de surface égale à 11,89 mag/am², on peut qualifier M104 de galaxie présentant une brillance de surface élevée.

Certaines sources indiquent que Charles Messier a découvert M104. En fait, elle ne figurait pas dans la première édition de son catalogue et il l'ajouta manuellement à celui-ci dans sa copie personnelle le 11 mai 1781.
C'est Pierre Méchain, un collègue de Charles Messier, qui a découvert M104 et il en a informé Jean Bernouilli dans une lettre datant du 6 mai 1783. Camille Flammarion remarqua la similitude de la position indiquée par Méchain et l'objet (HI.43, la galaxie du Sombrero) observé par John Herschel le 9 mars 1828 et il l'ajouta à la liste de Messier en 1921.

La caractéristique la plus remarquable de M104, qui lui vaut son nom populaire de galaxie du Sombrero, est la ligne de poussière en face de son bulbe. Cette bande de poussière est en fait un disque symétrique qui entoure le bulbe de la galaxie.
Source : Wikipédia

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Title: M 104 New Version

Description: Une nouvelle version avec ma camera ASI 294 MC Pro et un filtra UHC

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Messier 104 ou Galaxie du Sombrero ou NGC 4594

Revision title: M 104 New Version

Messier 104 ou Galaxie du Sombrero ou NGC 4594

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Messier 104 ou Galaxie du Sombrero ou NGC 4594

Revision title: M 104 New Version

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