M87 The Southern Pinwheel Galaxy (Sean Liang)

Celestial hemisphere: Southern · Constellation: Hydra (Hya) · Contains: M 83 · NGC 5236 · Southern Pinwheel Galaxy

M87 The Southern Pinwheel Galaxy, Sean Liang

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M87 The Southern Pinwheel Galaxy

Link: https://www.onebackpacker.com/behind-the-lens/m87-the-southern-pinwheel-galaxy

Powered byPixInsight

M87 The Southern Pinwheel Galaxy

Link: https://www.onebackpacker.com/behind-the-lens/m87-the-southern-pinwheel-galaxy

Messier 83, also known as the Southern Pinwheel Galaxy, is a grand design spiral galaxy approximately 15 million light-years away. It’s about half the size of our Milky Way Galaxy but is undergoing much more rapid star formation.

The magnificent spiral arms are peppered with star-forming regions(the pinkish dots) and dense clouds(the dark stripes). The grand structure originates from density waves moving things at different speeds within the galaxy. This created regions of dense material, where stars and interstellar gases are clumped in due to gravitational attraction.

Another interesting fact is that the galaxy is not perfectly symmetrical, probably because it just ate another smaller galaxy (It’s called ‘Galactic Cannibalism’, and I didn’t make that up)

Look closely on the upper left side, you’ll even find two small edge-on galaxies. Those are galaxies much much further away, probably hundreds of millions of light-years away.

(The data was acquired from Telescopelive, which I processed using pixinsight and photoshop)

Please note: The following tables are updated every 24 hours.

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
Image of the day
Top picks
Top pick nominations

Distribution of subject types

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
Deep sky
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Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

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
Backyard
Traveller
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Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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	Basic success
Started	...
Astrometry.net job	5500900
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M87 The Southern Pinwheel Galaxy

M87 The Southern Pinwheel Galaxy

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M87 The Southern Pinwheel Galaxy

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