Whale and Crowbar Galaxies (NGC 4631 and 4657) (urmymuse)

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

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Whale and Crowbar Galaxies (NGC 4631 and 4657)

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Whale and Crowbar Galaxies (NGC 4631 and 4657)

NGC 4631 (also known as the Whale Galaxy or Caldwell 32) is a barred spiral galaxy in the constellation Canes Venatici. This galaxy's slightly distorted wedge shape gives it the appearance of a herring or a whale, hence its nickname.Because this nearby galaxy is seen edge-on from Earth, professional astronomers observe this galaxy to better understand the gas and stars located outside the plane of the galaxy

Distance 30 million light years

NGC 4656/57 is a highly warped barred spiral galaxy located in the constellation Canes Venatici and is sometimes informally called the Hockey Stick Galaxies or the Crowbar Galaxy. The galaxy is a member of the NGC 4631 Group. A Luminous Blue Variable in "super-outburst" was discovered in NGC 4656/57 on March 21, 2005.

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	Distinct awarded users	Total awarded images
Image of the day
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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
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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	3252684
PixInsight job	Q9LCFW23SNKBVGTC6F1G9D38TRZF29BV
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h42m36s.18
RA (top/left)	12h44m45s.30
RA (top/right)	12h40m32s.56
RA (bottom/right)	12h40m27s.69
RA (bottom/left)	12h44m38s.66

Dec (center)	+32°22′05″.3
Dec (top/left)	+32°40′24″.9
Dec (top/right)	+32°42′07″.9
Dec (bottom/right)	+32°03′38″.4
Dec (bottom/left)	+32°01′58″.6

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Contribution Index (beta):

Whale and Crowbar Galaxies (NGC 4631 and 4657)

Whale and Crowbar Galaxies (NGC 4631 and 4657)

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Image Index:

Contribution Index (beta):

Whale and Crowbar Galaxies (NGC 4631 and 4657)

Whale and Crowbar Galaxies (NGC 4631 and 4657)

Equipment

Acquisition details

Description

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