NGC 188 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 188

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NGC 188

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NGC 188

NGC 188 is an open cluster of about 200 stars located 5000 light years away in the constellation of Cepheus. As stated in The Caldwell Objects, this object is seldom viewed because it is located in a "celestial graveyard", because it lies just 4 degrees away from Polaris and is tough to locate using an equatorial mount, and most importantly, because the object is "by no means a stunning sight". This object has been designated Caldwell 1 because it is the furthest north of any Caldwell object.

I find this object interesting because, unlike most other open clusters, the cluster does not appear bluish but instead is more of a teal color overall. I think this is because it is one of the oldest open clusters known and no longer contains the presence of hot young stars. The overall visual appearance appears to be a hybrid of an open cluster and a globular cluster.

The refractors!
Cloudy Nights
Open Star Clusters

Caldwell Catalog (Complete*)
Open Clusters

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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
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Star trails
Northern lights
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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
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	1844571
PixInsight job	BIN6CHIGAOVNRBF2E17RGQ0LLD8F45PN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h46m49s.185
RA (top/left)	01h04m57s.107
RA (top/right)	01h05m17s.653
RA (bottom/right)	00h25m11s.110
RA (bottom/left)	00h31m39s.740

Dec (center)	+85°14′01″.64
Dec (top/left)	+84°47′46″.70
Dec (top/right)	+85°41′43″.81
Dec (bottom/right)	+85°38′10″.23
Dec (bottom/left)	+84°44′48″.81

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NGC 188

NGC 188

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NGC 188

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