Markarian's Chain (estabrook)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: HD107774 · HD107888 · HD108272 · HD108348 · HD108422 · HD108487 · HD108560 · HD108577 · HD108593 · HD108613 · HD108614 · IC 3258 · IC 3280 · IC 3303 · IC 3311 · IC 3344 · IC 3349 · IC 3355 · IC 3363 · IC 3381 · IC 3382 · IC 3388 · IC 3393 · IC 3432 · IC 3442 · IC 794 · M 84 · M 86 · NGC 4374 · NGC 4387 · And 23 more.

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Markarian's Chain

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Markarian's Chain

As Markarian's Chain passes overhead and sets behind my house, my 2022 Galaxy Season draws to a successful close. I had begun capturing the Chain early in the evenings in late May, while waiting for other targets (the Fireworks Galaxy and Dumbbell Nebula) to rise above the trees. Because I was more focused on those other targets, I have to confess I gave this one short shrift. I was only able to capture about 4 hours of useful data on this target, not quite enough to capture the detail in the Eyes (NGC 4438 and 4435) that I was hoping for. I'll add this to the list of targets to return to next year!

(Captured: C6, AVX, Hyperstar, ASI183MC Pro, Optolong L-Pro filter. Processed: AstroPixelProcessor, PixInsight, StarXterminator, NoiseXterminator)

The OSC Club (One Shot Camera)
Broadband under Bortle 7/8/9
NOVAC
Virginia Astronomers and Astrophotographers
ZWO ASI183/QHY183
Light Polluted skies
Optolong L-Pro filter
HyperStar Lens Astrophotography

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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
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Landscape

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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	Advanced success
Started	...
Astrometry.net job	5861017
PixInsight job	HG5KVTRYTHN7G1UKQZCGSO39GWY11P6I
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h28m03s.42
RA (top/left)	12h33m30s.44
RA (top/right)	12h28m15s.23
RA (bottom/right)	12h22m38s.34
RA (bottom/left)	12h27m51s.40

Dec (center)	+13°13′39″.2
Dec (top/left)	+13°49′38″.1
Dec (top/right)	+11°46′32″.9
Dec (bottom/right)	+12°37′17″.5
Dec (bottom/left)	+14°40′50″.8

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Markarian's Chain

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Markarian's Chain

Markarian's Chain

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