Messier 83: The Southern Pinwheel Galaxy (Alex Woronow)

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

Powered byPixInsight

Messier 83: The Southern Pinwheel Galaxy

Powered byPixInsight

Messier 83: The Southern Pinwheel Galaxy

Messier 83: The Southern Pinwheel Galaxy

OTA: RCOS (12.5” f/8)

Camera: SBIG STXL11002

Observatory: Heaven’s Mirror, Au

EXPOSURES:

Red: 9 x 1200 seconds

Blue: 12 x 1200

Green: 11 x 1200

Lum: 14 x 1200

Total exposure ~15.3 hours

Width of Field ~15 arcminutes

Processed by Alex Woronow (2020) using PixInsight, Topaz, SWT

A face-on galaxy, M83 displays a barred spiral structure. At a declination of almost 30deg south, it is not well imaged from the northern hemisphere. This image was from eastern Australia. Distortions in its outer regions attest to gravitational interactions with a neighboring dwarf galaxy, NGC 5253, which spawned active star-burst activity. This galaxy has to kinematic centers, one a massive black hole and the other is problematic and obscured from our view.

The galaxy appears embedded in a faint, misty cloud that subdues many background stars, but has some patchiness in terms of lighter and darker areas.

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
Solar system
Extremely wide field
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
Own remote observatory
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	Advanced success
Started	...
Astrometry.net job	3645004
PixInsight job	Y1EWUTFHTKECYSK2V8SC90E2EMF1LV1I
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h37m00s.358
RA (top/left)	13h37m35s.876
RA (top/right)	13h37m41s.857
RA (bottom/right)	13h36m24s.711
RA (bottom/left)	13h36m18s.943

Dec (center)	-29°52′07″.66
Dec (top/left)	-29°43′08″.20
Dec (top/right)	-29°59′50″.77
Dec (bottom/right)	-30°01′07″.20
Dec (bottom/left)	-29°44′24″.19

Image Index:

Contribution Index (beta):

Messier 83: The Southern Pinwheel Galaxy

Messier 83: The Southern Pinwheel Galaxy

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Messier 83: The Southern Pinwheel Galaxy

Messier 83: The Southern Pinwheel Galaxy

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information