Markarian's Chain (JDJ)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: IC 3238 · IC 3239 · IC 3244 · IC 3258 · IC 3280 · IC 3303 · IC 3305 · IC 3311 · IC 3331 · IC 3344 · IC 3349 · IC 3355 · IC 3356 · IC 3358 · IC 3363 · IC 3381 · IC 3382 · IC 3388 · IC 3393 · IC 3413 · IC 3418 · IC 794 · M 84 · M 86 · M 87 · NGC 4305 · NGC 4306 · NGC 4313 · NGC 4330 · NGC 4351 · And 31 more.

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Markarian's Chain

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Markarian's Chain

This is my first image of Markarian's Chain, a stretch of galaxies in the Virgo cluster. This is my first widefield image in a few months and the only target I'm managed during this spring's galaxy imaging season. It's amazing to see such a great number of galaxies in one field and think about the vast reach of space this encompasses.

Imaged with WO GT81 at F4.7 (382 mm focal length) using Flat6A II field flattener/0.8x reducer, IDAS LPS-D1 filter, and full spectrum modified Nikon D5300.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Stacked 87 subs (240 sec at ISO 200) for a total integration time of ~7 hours. Post-processed in Pixinsight: Cropped, gradient removal with ABE, MLT for noise reduction, Background Neutralization, Color Calibration, SCNR, stretched using masked stretch then Histogram Transformation Tool, Curves Transformation, TGV Denoise, Local histogram transform, and Color Saturation boost.

Suburban Astrophotography
The OSC Club (One Shot Camera)
The refractors!
Cloudy Nights

Galaxies

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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.
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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	3621042
PixInsight job	82W9NC857QRIGAVX2O0YERYWEWC7CGYZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h26m18s.12
RA (top/left)	12h31m19s.40
RA (top/right)	12h29m48s.60
RA (bottom/right)	12h21m12s.69
RA (bottom/left)	12h22m51s.28

Dec (center)	+12°54′24″.5
Dec (top/left)	+11°24′06″.4
Dec (top/right)	+14°39′25″.6
Dec (bottom/right)	+14°24′32″.1
Dec (bottom/left)	+11°09′27″.2

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Markarian's Chain

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Markarian's Chain

Markarian's Chain

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