Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy) (Alex Woronow)

Celestial hemisphere: Southern · Constellation: Hydra (Hya) · Contains: M 83 · NGC 5236 · PGC 48082 · PGC 48132 · PGC 722819 · PGC 724003 · PGC 724525 · PGC 88914 · Southern Pinwheel Galaxy

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Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

Powered byPixInsight

Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

Messier 83: A Classic Barred Spiral Galaxy

OTA: CDK24” f/6.5
Camera: Moravian C3-61000 Pro, 2x2 binned at capture
Observatory: Heaven's Mirror, Chile

Exposures:
R: 16 x 600 sec
G: 18 x 600
B: 18 x 600
H: 18 x 900 sec
Total Exposure time used: 13.2 hours
Image Width: 30.5 arcminutes
Resolution: One pixel spans 4.6x10^11 km

Processing: PixInsight, Topaz Studio2, Radient, and custom scripts for subframe weighting and star replacement. (Image down-sampled 2x for publication.)

Unlike many of my recently posted images of galaxies, M83 appears to have been little affected by close proximity to other galaxies; it retains an almost iconic shape. Nonetheless, M83 has had gravitation interactions with a nearby dwarf galaxy, NGC 5253, that has initiated starburst activity in both galaxies. However, the Centaurus A galactic group members appear to be moving in unison with very little motion relative to one another (Wikipedia). This lack of relative motion could explain M83's overall lack of distorting gravitation events in its past.

Hope you find this rendition pleasing,

Alex Woronow

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

Distribution of astrophotographers

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	Distinct awarded users	Total awarded images
Image of the day
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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
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	Advanced success
Started	...
Astrometry.net job	7886268
PixInsight job	HQKX6XXKENLSATV6RGBNBO7J7MUA84BZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h37m00s.398
RA (top/left)	13h35m37s.397
RA (top/right)	13h37m43s.681
RA (bottom/right)	13h38m23s.729
RA (bottom/left)	13h36m17s.784

Dec (center)	-29°51′50″.48
Dec (top/left)	-29°54′07″.29
Dec (top/right)	-30°07′32″.86
Dec (bottom/right)	-29°49′43″.35
Dec (bottom/left)	-29°36′20″.56

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Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

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Contribution Index (beta):

Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

Messier 83: A Classic Barred Spiral Galaxy (Messier 83: A Classic Barred Spiral Galaxy)

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