M83 (Vergnes Christophe)

M83

Link: https://astromaroc.com/la-galaxie-du-moulinet-du-sud/

The southern pinwheel galaxy

The galaxy M 83, also cataloged NGC 5236, is a spiral galaxy located in the direction of the constellation Hydra, about 15 million light years from Earth.

Medium-sized and similar to our own Milky Way, M 83 is a barred spiral galaxy, meaning it has a central bar of stars and dust that extends several thousand light years.

Around this bar are spiral arms containing very active star forming regions.

Indeed, one of the most striking features of M83 is its magnificent spiral arms densely filled with young blue stars. These stars are actively forming in these arms, giving the galaxy a vibrant and colorful appearance.

Besides its visual appeal, what sets this magnificent galaxy apart from others is its massive halo of gas and dust that extends far beyond its spiral arms.

This halo is the product of billions of years of evolution of the galaxy M 83. Researchers believe that this halo was formed during interactions and collisions with other galaxies several billion years ago, and that these interactions continue to influence the evolution of the galaxy.

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La galaxie du moulinet du Sud

La galaxie M 83, aussi cataloguée NGC 5236, est une galaxie spirale située dans la direction de la constellation de l'Hydre, à environ 15 millions d'années-lumière de la Terre.

De taille moyenne et semblable à notre propre Voie lactée, M 83 est une galaxie spirale barrée, ce qui signifie qu'elle possède une barre centrale formée d'étoiles et de poussières qui s'étend sur plusieurs milliers de années-lumière.

Autour de cette barre, on trouve des bras spiraux contenant des régions de formation d'étoiles très actives.

En effet, L’une des caractéristiques les plus frappantes de M83 réside dans ses magnifiques bras en spirale densément remplis de jeunes étoiles bleues. Ces étoiles se forment activement dans ces bras, donnant ainsi à la galaxie une apparence vibrante et colorée.

Outre son attrait visuel, Ce qui distingue cette magnifique galaxie des autres, c'est son halo massif de gaz et de poussière qui s'étend bien au-delà de ses bras spiraux.

Ce halo est le produit de milliards d'années d'évolution de la galaxie M 83. Les chercheurs pensent que ce halo a été formé lors des interactions et collisions avec d'autres galaxies il y a plusieurs milliards d'années, et que ces interactions continuent d'influencer l'évolution de la galaxie.

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Status	Advanced success
Started	...
Astrometry.net job	9894740
PixInsight job	RK6EC2GA5L1BZRK45X7UVMEKIC97N2X4
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h37m00s.918
RA (top/left)	13h37m27s.170
RA (top/right)	13h35m26s.317
RA (bottom/right)	13h36m34s.430
RA (bottom/left)	13h38m35s.352

Dec (center)	-29°52′04″.69
Dec (top/left)	-29°32′13″.70
Dec (top/right)	-29°54′32″.93
Dec (bottom/right)	-30°11′55″.88
Dec (bottom/left)	-29°49′32″.55

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