NGC 772 (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Aries (Ari) · Contains: NGC 770 · NGC 772

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NGC 772

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NGC 772

NGC 772 is an unbarred spiral galaxy approximately 130 million light-years away in the constellation Aries.

Around 200,000 light years in diameter, NGC 772 is twice the size of the Milky Way Galaxy, and is surrounded by several satellite galaxies – including the dwarf elliptical, NGC 770 – whose tidal forces on the larger galaxy have likely caused the emergence of a single elongated outer spiral arm that is much more developed than the others arms. Halton Arp includes NGC 772 in his Atlas of Peculiar Galaxies as Arp 78, where it is described as a "Spiral galaxy with a small high-surface brightness companion".

Two supernovae, SN 2003 hl (discovered August 20, 2003) and SN 2003 iq (discovered October 8th, 2003), have been observed in NGC 772. Both were Type II.

NGC 772 probably has a H II nucleus, but it may be a transitional object.

Southern Hemisphere Astro

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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	5898660
PixInsight job	L833C94MKYMTQGIQ90RZMEVLSWOCO4JS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	01h59m16s.888
RA (top/left)	02h00m14s.549
RA (top/right)	02h00m12s.853
RA (bottom/right)	01h58m19s.122
RA (bottom/left)	01h58m21s.252

Dec (center)	+19°00′20″.11
Dec (top/left)	+18°42′43″.49
Dec (top/right)	+19°18′17″.62
Dec (bottom/right)	+19°17′56″.91
Dec (bottom/left)	+18°42′22″.79

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NGC 772

NGC 772

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NGC 772

NGC 772

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