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Contains:  NGC 4458, NGC 4438, The Eyes, NGC 4435, NGC 4425, NGC 4413, M 86, NGC 4406, NGC 4402, NGC 4388, NGC 4387, IC 3311, IC 3303, M 84, NGC 4374
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Markarian's Chain, 


            Ara Jerahian
Markarian's Chain

Markarian's Chain

Technical card

Resolution: 4236x3370

Dates:May 27, 2019June 3, 2019

ZWO 1.25" Blue: 25x90" (gain: 75.00) -20C bin 1x1
ZWO 1.25" Green: 21x90" (gain: 75.00) -20C bin 1x1
ZWO 1.25" Lum: 66x90" (gain: 75.00) -20C bin 1x1
ZWO 1.25" Red: 25x90" (gain: 75.00) -20C bin 1x1

Integration: 3.4 hours

Darks: ~50

Flats: ~50

Flat darks: ~50

Bias: ~50

Avg. Moon age: 11.47 days

Avg. Moon phase: 21.16%

Bortle Dark-Sky Scale: 5.00

Temperature: 7.00 job: 2730485

RA center: 186.432 degrees

DEC center: 13.067 degrees

Pixel scale: 1.160 arcsec/pixel

Orientation: 232.438 degrees

Field radius: 0.872 degrees

Locations: Home, Cape Elizabeth, ME, United States

Data source: Backyard


First light with my new ES ED127 FCD-100. Took a little to overcome some hurdles (all my own doing) and for the weather gods to sync up with my work gods, but Markarian's Chain is a target I wanted to shoot for some time now. I know I don't have the full chain, but I will leave mosaics for an exercise in my future.



Ara Jerahian
License: None (All rights reserved)

Sky plot

Sky plot


Markarian's Chain, 


            Ara Jerahian