Arp 217 ( Gotthard Stuhm )

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3310 · PGC 2437927 · PGC 2443975 · PGC 2445117 · PGC 2445532 · PGC 2449838 · PGC 2450277

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Arp 217

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Arp 217

Imaging Telescopes Or Lenses: TS-Optics 300mm/12" ONTC f/5.3 Newtonian (carbon tube)
Imaging Cameras: Canon EOS 600D / Rebel T3i / Kiss X5 (modified)
Mounts: Sky-Watcher EQ8
Accessories: Lacerta MGEN-2 standalone autoguider
Software: Pleiades Astrophoto PixInsight

Frames:: 30×60″(30′) ISO100
45×60″(45′) ISO1600
140×120″(4h 40′) ISO200
150×150″(6h 15′) ISO400
230×120″(7h 40′) ISO800
Integration:: 19h 50′
Bortle Dark-Sky Scale:: 7.00

RA center: 10h39m16s.368

DEC center: +53°29′20″.99

Pixel scale: 0.613 arcsec/pixel

Orientation: -2.588 degrees

Field radius: 0.514 degrees

WCS transformation: thin plate spline

More info:Open

Resolution: 5032x3324

File size: 780.1 KB

Data source: Backyard

Unique or Unusal Deep Sky Targets
Rarely Imaged Small DSOs
Arp's Peculiar Galaxies
Suburban Astrophotography

Galaxies

Please note: The following tables are updated every 24 hours.

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

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.
Dismissals 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	7832876
PixInsight job	K71S1GUYL1KSDE8RN9QSSCWPL9TM1T9Q
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	10h39m16s.368
RA (top/left)	10h42m04s.599
RA (top/right)	10h36m17s.928
RA (bottom/right)	10h36m30s.364
RA (bottom/left)	10h42m12s.552

Dec (center)	+53°29′20″.99
Dec (top/left)	+53°47′17″.40
Dec (top/right)	+53°44′59″.70
Dec (bottom/right)	+53°11′08″.79
Dec (bottom/left)	+53°13′26″.90

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Contribution Index (beta):

Arp 217

Arp 217

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Arp 217

Arp 217

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