Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  M 84  ·  M 86  ·  NGC 4374  ·  NGC 4387  ·  NGC 4388  ·  NGC 4402  ·  NGC 4406  ·  NGC 4413  ·  NGC 4425  ·  NGC 4435  ·  NGC 4438  ·  NGC 4458  ·  NGC 4461  ·  NGC 4473  ·  NGC 4477  ·  NGC 4479  ·  The Eyes
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Markarian's Chain, 



    
        

            Steven Bellavia
Markarian's Chain
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Markarian's Chain

Technical card

Imaging telescopes or lenses: William Optics Star 71 f/4.9

Imaging cameras: ZWO ASI183MC Pro

Mounts: Celestron AVX Mount

Guiding telescopes or lenses: Agena Astro 50mm f/3.9 Guidescope

Guiding cameras: ASI224MC

Software: IDEIKI AstroPhotography Tool (APT)  ·  Stark Labs Nebulosity 4.2  ·  Digital Photo Professional  ·  Annie's Astro Actions V7  ·  Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions  ·  PHD2 Guiding  ·  SharpCap Pro 3.1

Filters: L


Dates:April 3, 2019

Frames:L: 53x240" (gain: 111.00) -15C bin 1x1

Integration: 3.5 hours

Darks: ~30

Avg. Moon age: 27.81 days

Avg. Moon phase: 3.32%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 20.70

Mean FWHM: 4.00

Temperature: 7.00


Basic astrometry details

Astrometry.net job: 2761957

RA center: 12h 27' 34"

DEC center: +13° 8' 9"

Pixel scale: 1.434 arcsec/pixel

Orientation: 359.577 degrees

Field radius: 1.077 degrees


Resolution: 4500x3000

Data source: Traveller

Description

Markarian's Chain is a stretch of galaxies that forms part of the Virgo Cluster. When viewed from Earth, the galaxies lie along a smoothly curved line. Charles Messier first discovered two of the galaxies, M84 and M86, in 1781. The other galaxies seen in the chain were first mentioned in John Louis Emil Dreyer's New General Catalogue, published in 1888. It was ultimately named after the Armenian astrophysicist, Benjamin Markarian, who discovered their common motion in the early 1960s. Member galaxies include the brighter lenticular galaxies, M84 (NGC 4374), M86 (NGC 4406), as well as NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435.The chain of galaxies spans over 1.5 degrees (three full moons) on the border between Virgo and Coma Berenices. The galaxies are between 50 and 70 million light years away.

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Markarian's Chain, 



    
        

            Steven Bellavia