NGC 457

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 34 phi Cas · 37 del Cas · NGC 433 · NGC 436 · NGC 457 · Owl Cluster · Ruchbah · The star Ruchbah (δCas) · The star φCas

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NGC 457

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NGC 457

NGC 457 (also designated Caldwell 13, and known as the Owl Cluster, E.T. Cluster, Dragonfly Cluster, or Kachina Doll Cluster) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1787, and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years. The cluster is sometimes referred by amateur astronomers as the Owl Cluster,[3] the E.T. Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars Phi Cassiopeiae (magnitude 5) and HD 7902 (magnitude 7) can be imagined as eyes. The next brightest star is the red supergiant variable star V466 Cassiopeiae. The cluster features a rich field of about 150 stars of magnitudes 9-13.

--Wikipedia

I take back in November and just now have a chance to process. Really like the star field! Framing could be improved.

Women Astrophotographers

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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	4036401
PixInsight job	8IPGD7G4QRN4GJGBNT5IODI7IS5AM8FX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h19m35s.29
RA (top/left)	01h29m21s.92
RA (top/right)	01h08m33s.68
RA (bottom/right)	01h10m50s.25
RA (bottom/left)	01h29m30s.53

Dec (center)	+58°16′57″.3
Dec (top/left)	+60°15′32″.9
Dec (top/right)	+60°08′32″.6
Dec (bottom/right)	+56°16′16″.3
Dec (bottom/left)	+56°22′22″.1

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NGC 457

NGC 457

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Image Index:

Contribution Index (beta):

NGC 457

NGC 457

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In these public groups

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