NGC 660 (Tom Harrison)

Celestial hemisphere: Northern · Constellation: Pisces (Psc) · Contains: NGC 660

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NGC 660

Link: http://www.manoprietoobservatory.com/gallery/galaxies/170

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NGC 660

Link: http://www.manoprietoobservatory.com/gallery/galaxies/170

NGC660 is a polar ring type galaxy located at an approximate distance of 24 Million Light-Years toward the Constellation Pisces. It is only about 36,000 Light-Years in diameter. It is one of the finest representations amoung the relative rare polar ring galaxies (10 or so have been discovered). A polar ring galaxy is thought to develop through the interaction of two galaxies and an exchange of mass into the visible polar ring, aided by a large amount of gold gas dark matter. The NGC660 polar ring is observed in an inclined perspective and thus seen off to one side of the center of the galaxy. The dark matter apparently arrests the merger process of the two galaxies into a "frozen" polar ring state. In NGC660, a heavy concentration of new star formation (the bluish areas) surround the core of older stars. Astronomers can estimate the amount of dark matter by measuring the rotation rate of the highly extended polar ring.

Object: NGC660

Distance: 24 Million Light-Years

Magnitude: 11.2 visual

Date: November 2010

Place: Fort Davis, TX

Exposure Details: LRGB:700:180:210:270 unbinned

Processing: MaxIm DL, CCDStack, Photoshop CS3

Optics: 12.5" RCOS Truss

Focal Length: 2808 @ f9

Mount: Paramount ME Robotic

Camera: SBIG STL6303E

Focuser: RCOS

Guiding: Off-Axis with SBIG Guide Camera

Filters: Tru-Balance 2" LRGB Gen II

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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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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
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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	Basic success
Started	...
Astrometry.net job	6425195
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 660

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NGC 660

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