Whirlpool Galaxy (M51) (stalv0812)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4263 · IC 4277 · IC 4278 · M 51 · NGC 5169 · NGC 5173 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool Galaxy

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Whirlpool Galaxy (M51)

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Whirlpool Galaxy (M51)

M51, also known as the Whirlpool Galaxy, is a grand design spiral galaxy located in the constellation Canes Venatici. It's one of the most famous galaxies in the sky, and it's particularly well-known for its spiral structure. M51 is interacting with a smaller galaxy, NGC 5195, which has passed through the main disk of M51 and is now located behind it.The Whirlpool Galaxy is roughly 23 million light years away from Earth. It's an excellent target for amateur astronomers due to its brightness and the clear view of its spiral arms. M51 was the first galaxy where spiral structure was identified, by Lord Rosse in 1845.The central region of M51 has been extensively studied because it contains an active galactic nucleus, suggesting the presence of a supermassive black hole. The galaxy's spiral arms are also regions of active star formation, making M51 an excellent laboratory for studying the processes that lead to the formation of new stars.

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	7878049
PixInsight job	OTZ0CGUPE5ZGZHQQ0P3S8E8HHH2Y8QMP
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h29m54s.210
RA (top/left)	13h35m12s.735
RA (top/right)	13h25m49s.395
RA (bottom/right)	13h24m43s.629
RA (bottom/left)	13h33m50s.995

Dec (center)	+47°11′34″.77
Dec (top/left)	+47°51′52″.23
Dec (top/right)	+48°04′37″.34
Dec (bottom/right)	+46°30′23″.24
Dec (bottom/left)	+46°18′02″.15

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Contribution Index (beta):

Whirlpool Galaxy (M51)

Whirlpool Galaxy (M51)

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Image Index:

Contribution Index (beta):

Whirlpool Galaxy (M51)

Whirlpool Galaxy (M51)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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