NGC 3521 _ Bubble Galaxy (AstroFleetTeam)

Celestial hemisphere: Southern · Constellation: Leo (Leo) · Contains: HD96363 · NGC 3521

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NGC 3521 _ Bubble Galaxy

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NGC 3521 _ Bubble Galaxy

La galaxie spirale NGC 3521 ne se trouve qu’à 35 millions d’années-lumière de nous, dans la constellation du Lion.

Elle est souvent négligée par les amateurs au profit d’autres spirales du Lion, comme M66 et M65.
Elle s'étend sur environ sur 50 000 années-lumière de diamètre, .
Ce champ révèle également que NGC 3521 se trouve au cœur d’une sorte de bulle dont les contours sont probablement formés de lignes de ressac contenant des étoiles arrachées gravitationnellement à des galaxies satellites qui ont fusionné par le passé avec NGC 3521.
Comme les bras spiraux de NGC 3521 sont inégaux et discontinus, on peut qualifier celle-ci de galaxie spirale cotonneuse.
Pour finir, cette galaxie est entourée d'une gigantesque coquille en forme de bulle qui lui a valu le surnom de Bubble Galaxy. On pense que cette coquille a été formée par des débris et des étoiles arrachées à des galaxies satellites par la gravité de NGC 3521.

NGC 3521 est une galaxie LINER, c'est-à-dire une galaxie dont le noyau présente un spectre d'émission caractérisé par de larges raies d'atomes faiblement ionisés.

Cette image a été réalisée une fois de plus sous les cieux espagnol de notre hébergeur Pixelskies !
L'image représente environ 45h d'imagerie

Bon Ciel de toute la TEAM ASTROFLEET !

PixelSkiesAstro
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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
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This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
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This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	7817027
PixInsight job	YJBI275FUQ9JLFWSYXNHS4ROT9UDQLDX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h06m03s.180
RA (top/left)	11h07m33s.465
RA (top/right)	11h07m20s.833
RA (bottom/right)	11h04m32s.773
RA (bottom/left)	11h04m45s.940

Dec (center)	-00°00′56″.24
Dec (top/left)	-00°32′03″.13
Dec (top/right)	+00°32′16″.63
Dec (bottom/right)	+00°30′12″.15
Dec (bottom/left)	-00°34′03″.22

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NGC 3521 _ Bubble Galaxy

NGC 3521 _ Bubble Galaxy

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NGC 3521 _ Bubble Galaxy

NGC 3521 _ Bubble Galaxy

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