M51 - La galaxie du Tourbillon (Christian Proulx)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD117815 · IC 4263 · IC 4277 · IC 4278 · M 51 · NGC 5169 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool Galaxy

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M51 - La galaxie du Tourbillon

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M51 - La galaxie du Tourbillon

M51La galaxie du Tourbillon, également connue sous le nom de M51ou NGC 5194, est une galaxie spirale située à environ 23 millions d'années-lumière de la Terre, dans la constellation des Chiens de chasse. Elle est célèbre pour sa structure en spirale bien définie et pour son interaction gravitationnelle avec une autre galaxie,NGC 5195, qui est souvent appelée la galaxie du Compagnon. Voici quelques faits intéressants sur la galaxie du Tourbillon :1- Structure en spirale : M51 présente une structure en spirale spectaculaire composée de bras spiralés denses, de poussières interstellaires et de jeunes étoiles bleues. Les bras spirales sont formés par des ondes de densité qui se déplacent à travers le disque de la galaxie, provoquant des zones de formation stellaire intense.2- Interaction avec NGC 5195 : M51 interagit gravitationnellement avec NGC 5195, une petite galaxie elliptique. Cette interaction a provoqué une distorsion dans la forme des bras spiralés de M51 et a déclenché une intense activité de formation stellaire dans la région où les deux galaxies se rencontrent.3- Trou noir supermassif : Comme de nombreuses autres galaxies, M51 possède un trou noir supermassif situé au centre de son noyau. Ce trou noir a une masse estimée à plusieurs millions de fois celle du Soleil4- Découverte de supernovas : La galaxie du Tourbillon a été le lieu de nombreuses découvertes de supernovas, qui sont des explosions stellaires spectaculaires. Ces événements fournissent des informations précieuses sur la vie et la mort des étoiles.

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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.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
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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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	7821016
PixInsight job	H4C58E0FNKO1VMP5J6JGZIGS0YGUKE8V
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h30m03s.665
RA (top/left)	13h32m05s.490
RA (top/right)	13h32m29s.515
RA (bottom/right)	13h27m59s.150
RA (bottom/left)	13h27m40s.566

Dec (center)	+47°12′30″.91
Dec (top/left)	+46°37′07″.22
Dec (top/right)	+47°45′19″.73
Dec (bottom/right)	+47°47′46″.41
Dec (bottom/left)	+46°39′29″.61

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M51 - La galaxie du Tourbillon

M51 - La galaxie du Tourbillon

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M51 - La galaxie du Tourbillon

M51 - La galaxie du Tourbillon

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