The Whale and Hockey Stick - HaLRGB (James E.)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: NGC 4627 · NGC 4631 · NGC 4656 · NGC 4657 · Whale Galaxy

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The Whale and Hockey Stick - HaLRGB

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The Whale and Hockey Stick - HaLRGB

The Whale Galaxy (NGC 4631) is an edge-on barred spiral about 30 million light years away in Canes Venatici. It contains a central starburst region as evidenced in the emission from ionized hydrogen and abundance of interstellar dust. So many supernova have exploded in the center of the galaxy that a galactic superwind has been created which produces a giant, diffuse corona of hot X-ray emitting gas around the entire galaxy. NGC 4627 is a nearby companion dwarf elliptical galaxy.

The Hockey Stick Galaxy (NGC 4656) is a member of the NGC 4631 group. It's a highly warped barred spiral structure is thought to be due to an interaction with the Whale Galaxy.

Imaged over several nights: Jan 4, 8, 14, 15; Feb 1, 2022.

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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	5484450
PixInsight job	TD5BS8Y3D50LJI4RFW3P3YVT0SPLHV6N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h42m49s.77
RA (top/left)	12h45m56s.41
RA (top/right)	12h39m50s.57
RA (bottom/right)	12h39m46s.12
RA (bottom/left)	12h45m45s.99

Dec (center)	+32°21′32″.5
Dec (top/left)	+33°04′19″.3
Dec (top/right)	+33°05′43″.9
Dec (bottom/right)	+31°38′31″.10
Dec (bottom/left)	+31°37′09″.5

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Contribution Index (beta):

The Whale and Hockey Stick - HaLRGB

The Whale and Hockey Stick - HaLRGB

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Image Index:

Contribution Index (beta):

The Whale and Hockey Stick - HaLRGB

The Whale and Hockey Stick - HaLRGB

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Acquisition details

Description

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In these public groups

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