Markarian's Chain (Chris Plonski)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: HD107888 · HD108348 · HD108487 · HD108577 · HD108613 · IC 3303 · IC 3344 · IC 3349 · IC 3355 · IC 3363 · IC 3382 · IC 3388 · IC 3393 · M 84 · M 86 · NGC 4374 · NGC 4387 · NGC 4388 · NGC 4402 · NGC 4406 · NGC 4407 · NGC 4413 · NGC 4425 · NGC 4435 · NGC 4436 · NGC 4438 · NGC 4440 · NGC 4446 · NGC 4447 · NGC 4458 · And 8 more.

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Markarian's Chain

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Markarian's Chain

Markarian's Chain is a stretch of galaxies that form part of the Virgo Cluster.

This is one I never finished capturing all the data I wanted for because I switched scopes at my remote observatory before this was completed so I could capture several other targets that were starting to come into the late spring sky. Due to the seemingly endless rain of late, I decided to go ahead an process what I did have so far anyway.

25 frames @ 300 seconds each of Green and Blue and 31 frames of Red for a total integration time of 6.75 hours. Stacked and lightly processed in PixInsight.

Skywatcher 80ED refractor

ZWO ASI1600mm Pro cooled monochrome camera (-15C)

Astrodon R,G and B filters

Orion Atlas Pro AZ/EQ-G mount

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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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
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Amateur hosting facility
Public amaeteur data
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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	3593217
PixInsight job	TNIDBUZZQBAL66A5DCQH1WW3QKI6RZGA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h27m34s.36
RA (top/left)	12h25m43s.85
RA (top/right)	12h23m49s.54
RA (bottom/right)	12h29m23s.57
RA (bottom/left)	12h31m20s.70

Dec (center)	+13°17′13″.1
Dec (top/left)	+14°23′06″.2
Dec (top/right)	+12°31′48″.5
Dec (bottom/right)	+12°11′14″.8
Dec (bottom/left)	+14°02′22″.2

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Markarian's Chain

Markarian's Chain

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Markarian's Chain

Markarian's Chain

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