M51 Whirlpool Galaxy in Canes Venatici (Sigga)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: 24 CVn · IC 4263 · IC 4278 · M 51 · NGC 5169 · NGC 5173 · NGC 5194 · NGC 5195 · NGC 5198 · NGC 5229 · The star 24CVn · Whirlpool galaxy

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M51 Whirlpool Galaxy in Canes Venatici

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M51 Whirlpool Galaxy in Canes Venatici

The Whirlpool Galaxy, also known as Messier 51a, M51a, or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus in the constellation Canes Venatici. It was the first galaxy to be classified as a spiral galaxy. Recently it was estimated to be 23 ± 4 million light-years from the Milky Way, but different methods yield distances between 15 and 35 million light-years. Messier 51 is one of the best known galaxies in the sky.

--Wikipedia

More:

Messier51 - Wikipedia

Messier51 - Astropixels.com

Messier51 - SEDS

This is image #2 in long term project to the photograph complete Messier catalog. Another single greyscale image falsely coloured in Lightroom.

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Description: M51 cropped.

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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	1511725
PixInsight job	0HE5G54GLBKTA2G2IKCWKDUQ0JCGLE9Y
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h29m52s.69
RA (top/left)	13h37m22s.96
RA (top/right)	13h37m42s.20
RA (bottom/right)	13h21m48s.28
RA (bottom/left)	13h22m36s.58

Dec (center)	+47°11′48″.9
Dec (top/left)	+45°14′39″.3
Dec (top/right)	+49°08′41″.3
Dec (bottom/right)	+49°07′01″.5
Dec (bottom/left)	+45°13′04″.7

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M51 Whirlpool Galaxy in Canes Venatici

M51 Whirlpool Galaxy in Canes Venatici

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M51 Whirlpool Galaxy in Canes Venatici

M51 Whirlpool Galaxy in Canes Venatici

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