Messier 83 from the Southern Hemisphere (Alex Woronow)

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

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Messier 83 from the Southern Hemisphere

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Messier 83 from the Southern Hemisphere

Messier 83 from the Southern Hemisphere

OTA:……………….CDK17

Camera:………….SBIG STXL11002with AOX and FW8G (0.63 arsec/pxl)

Observatory:…. Heaven’s Mirror, Chile

EXPOSURES:

…R……11 x 1200 sec.

…B…....7 x 1200

…G…….6 x 1200

…L……18 x 1200

Total exposure 14 hours

Image Width: ~40 arc-minutes

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

M 83 lies pretty far south for N. American and most European observatories to do it justice. This image from Chile shows much of the color and detail that this relatively nearby (4.5 Mpc) spiral galaxy offers.

It is a “grand design” spiral galaxy. “Grand design” means that it has distinct spiral arms extending for a large angular distance around the galaxy and discernable over much of its radius. In addition to the spiral arms, M 83 has a weakly expressed bar but no inner ring.

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	4418985
PixInsight job	NMR1TC06PLF1A0WDCE4OX83AN7N5DJ9J
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h37m04s.250
RA (top/left)	13h37m11s.584
RA (top/right)	13h35m13s.703
RA (bottom/right)	13h36m56s.598
RA (bottom/left)	13h38m54s.796

Dec (center)	-29°50′35″.80
Dec (top/left)	-30°15′53″.76
Dec (top/right)	-29°42′18″.88
Dec (bottom/right)	-29°25′16″.38
Dec (bottom/left)	-29°58′46″.34

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Messier 83 from the Southern Hemisphere

Messier 83 from the Southern Hemisphere

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Image Index:

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Messier 83 from the Southern Hemisphere

Messier 83 from the Southern Hemisphere

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