NGC 188 (Reg Pratt)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD3065 · NGC 188

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NGC 188

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NGC 188

NGC 188 Polarissima Cluster, the nearest star cluster to the northern celestial pole (<5° away). In fact, the Latin term Polarissima translates to "closest to the pole". It lies a short 5,000 light-years away from earth. Positioned slightly above the galactic plane, this cluster is further from the center of the galaxy than our Sun. The northern sky looks quite empty on surveys but its actually filled with an immense amount of IFN, some of which can be found in this frame. One would assume that given its shape, NGC 188 is a globular cluster but its actually an open cluster. Generally open clusters drift apart over time due to the gravitational influence of the Milky Way galaxy. However, 188's position above the plane mean less gravitational interaction and the cluster is better able to maintain its shape. One of the coolest things about this object is that it never sets below 30° altitude for those of us located at latitude 34° N or higher. That means this target, and much of the broader area, remains available year-round. This is good news for people like me who aren't that into galaxies as it gives us something more interesting to do in the spring while we wait for the dusty galactic plane to return. I remain fascinated with the fact that the most unremarkable interstellar objects can make compelling images if they're covered in a littte dust.

ZWO ASI2600MM Pro
Unique or Unusal Deep Sky Targets
IOptron CEM
Dark Nebula
Fast Newtonians

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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
Artificial satellite

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	...
PixInsight job	6HU9OHSAUONWV2LEUD9NWTBP1I20M5KG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h48m06s.568
RA (top/left)	01h21m09s.430
RA (top/right)	00h12m51s.490
RA (bottom/right)	00h21m00s.736
RA (bottom/left)	01h18m02s.314

Dec (center)	+85°14′54″.59
Dec (top/left)	+85°40′48″.63
Dec (top/right)	+85°35′27″.98
Dec (bottom/right)	+84°44′13″.93
Dec (bottom/left)	+84°48′41″.43

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