Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  IC 3258  ·  M 84  ·  M 86  ·  NGC 4374  ·  NGC 4387  ·  NGC 4388  ·  NGC 4402  ·  NGC 4406  ·  NGC 4407  ·  NGC 4425  ·  NGC 4435  ·  NGC 4438  ·  NGC 4458  ·  NGC 4461  ·  NGC 4473
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Markarian's Chain with H-alpha emission of collided galaxies, 



    
        

            Patrick Dufour
Markarian's Chain with H-alpha emission of collided galaxies
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Markarian's Chain with H-alpha emission of collided galaxies

Getting plate-solving status, please wait...
Markarian's Chain with H-alpha emission of collided galaxies, 



    
        

            Patrick Dufour
Markarian's Chain with H-alpha emission of collided galaxies
Powered byPixInsight

Markarian's Chain with H-alpha emission of collided galaxies

Acquisition details

Dates:
June 13, 2020 ·  June 19, 2020 ·  July 13, 2020 ·  July 14, 2020 ·  July 15, 2020 ·  July 18, 2020
Frames:
Astrodon Ha 50mm 5nm: 53×1800(26h 30′) (gain: 26.00) bin 1×1
Astronomik LRGB IIc lrgb: 103×300(8h 35′) (gain: 26.00) bin 1×1
Integration:
35h 5′
Avg. Moon age:
24.66 days
Avg. Moon phase:
27.44%

Basic astrometry details

Astrometry.net job: 3682204

RA center: 12h26m48s.2

DEC center: +12°5804

Pixel scale: 0.631 arcsec/pixel

Orientation: 2.031 degrees

Field radius: 0.968 degrees

Resolution: 9290x5973

File size: 120.8 MB

Locations: Cielmonchili, Monte Patria, Coquimbo, Chile

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

During a search to learn more about this Virgo galaxy cluster, I came across a research that highlighted the collision of the giant galaxy M86 and its neighbor NGC 4438 (http: //www.astro. yale.edu/kenney/pages/projects.html). On the majority of images taken in color by amateurs, we cannot see this interaction other than by acquiring images in the H-Alpha band. That said, the signal is so weak that even 30-minute exposures barely make a noticeable difference. But clearly, large professional telescopes are able to get this information and I challenged myself to take as many exposures as necessary to bring out the phenomenon. Here is after almost 30 hours of exposures only in H-Alpha spread over a long period given a short presence in the sky of Chile since the month of May.

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Markarian's Chain with H-alpha emission of collided galaxies, 



    
        

            Patrick Dufour

In these public groups

Astroimaging from Chile
Astro-Québec