Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  IC3258  ·  IC3280  ·  IC3303  ·  IC3305  ·  IC3311  ·  IC3331  ·  IC3344  ·  IC3349  ·  IC3355  ·  IC3358  ·  IC3363  ·  IC3381  ·  IC3382  ·  IC3388  ·  IC3393  ·  IC3432  ·  IC3442  ·  IC3443  ·  IC3457  ·  IC3459  ·  IC3461  ·  IC3475  ·  IC3476  ·  IC3478  ·  IC3489  ·  IC794  ·  M 84  ·  M 86  ·  M 87  ·  M 88  ·  And 49 more.
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NGC 4435 (The Eyes) and Markarian's Chain, 



    
        

            Stephen Eggleston
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NGC 4435 (The Eyes) and Markarian's Chain

Getting plate-solving status, please wait...
NGC 4435 (The Eyes) and Markarian's Chain, 



    
        

            Stephen Eggleston
Powered byPixInsight

NGC 4435 (The Eyes) and Markarian's Chain

Technical card

Imaging telescopes or lenses: William Optics GT71 Triplet Apo William Optics GT71

Imaging cameras: ZWO ASI6200MC Pro

Mounts: Skywatcher HEQ5 Pro GoTo

Guiding telescopes or lenses: William Optics Guide Scope 50 mm William Optics UniGuide 50mm Slide-Base Guide Scope w/ 1.25" RotoLock

Guiding cameras: ZWO ASI290MM

Focal reducers: William Optics 6A III 0.8x Reducer / Flattener

Software: Adobe Photoshop CC 2021  ·  ZWO ASIAIR PRO Software  ·  PixInsight 1.8.5 Ripley  ·  Stallarium

Filters: Baader Moon and SkyGlow Filter

Accessory: ZWO ASIAir Pro  ·  ZWO EAF Focuser  ·  Pegasus Astro Dew Zap DCC  ·  ZWO 5x2 EFW


Dates:April 8, 2021

Frames:Baader Moon and SkyGlow Filter: 60x300" (5h) (gain: 100.00) -20C bin 1x1

Integration: 5h

Darks: ~50

Flats: ~30

Flat darks: ~30

Avg. Moon age: 26.19 days

Avg. Moon phase: 12.14%

Bortle Dark-Sky Scale: 4.00


Astrometry.net job: 4433388

RA center: 12h 28' 21"

DEC center: +13° 9' 34"

Pixel scale: 1.154 arcsec/pixel

Orientation: -90.411 degrees

Field radius: 1.962 degrees


Resolution: 9704x7448

Data source: Own remote observatory

Remote source: Non-commercial independent facility

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 discovered by William Herschel and are now known primarily by their catalog numbers 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 M84 (NGC 4374), M86 (NGC 4406), NGC 4477, NGC 4473, NGC 4461, NGC 4458, NGC 4438 and NGC 4435.

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NGC 4435 (The Eyes) and Markarian's Chain, 



    
        

            Stephen Eggleston