Hemisphere:  Northern  ·  Constellation: Virgo (Vir)  ·  Contains:  IC 3311  ·  IC3280  ·  IC3303  ·  IC3311  ·  IC3344  ·  IC3349  ·  IC3355  ·  IC3363  ·  IC3382  ·  IC3388  ·  IC3393  ·  IC3443  ·  M 84  ·  M 86  ·  M 87  ·  M84  ·  M86  ·  M87  ·  NGC 4374  ·  NGC 4387  ·  NGC 4388  ·  NGC 4402  ·  NGC 4406  ·  NGC 4413  ·  NGC 4425  ·  NGC 4431  ·  NGC 4435  ·  NGC 4436  ·  NGC 4438  ·  NGC 4440  ·  And 25 more.
Getting plate-solving status, please wait...
Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
Powered byPixInsight

Markarian's Chain of Galaxies in Virgo

Getting plate-solving status, please wait...
Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
Powered byPixInsight

Markarian's Chain of Galaxies in Virgo

Imaging telescopes or lenses: Astro-Physics RH-305

Imaging cameras: SBIG STX KAF-16803

Mounts: Astro-Physics A-P 1600

Software: PixInsight 1.8



Astrometry.net job: 2019341

RA center: 12h 27' 52"

DEC center: +12° 56' 49"

Pixel scale: 1.660 arcsec/pixel

Orientation: -1.158 degrees

Field radius: 1.184 degrees


Resolution: 3901x3343

Locations: Deep Sky West, Rowe, NM, United States

Data source: Amateur hosting facility

Remote source: DeepSkyWest

Description

The challenges of processing the targets in this picture included:

1. Refine the visibility and detail of several very small scale objects (galaxies) of different types, a few having details and color and interesting shapes, others just fuzz balls with minimal structural detail or color variation.

2. Make the color interesting without distorting. These galaxies are very old and very far away so there's not much structure or color in the really big fuzzy ones. So the color interest comes from a few hints of red and blue in a few of the galaxies, but mostly from the stars in the background, so the challenge is to allow many small stars in the foreground to show colorfully.

3. There’s some dust like IFN in the FOV too, which can easily be suppressed, increasing contrast for the galaxies and stars, but is interesting to bring out in the luminance if you can.

Comments

Revisions

  • Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
    Original
  • Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
    B
  • Final
    Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
    C
  • Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
    D
  • Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling
    E

B

Description: Rebalance colors to make less blue hue, then tweaked contrast to darken background, but background is lighter than previous revision.

Uploaded: ...

C

Description: Re-processed from LRGB, color changed, stretched more, added noise reduction in LRGB and cropped out top and a bit around the edges.

Uploaded: ...

D

Description: adjusting hue and brightness after viewing in browser

Uploaded: ...

E

Description: Redone from masters.

Uploaded: ...

Sky plot

Sky plot

Histogram

Markarian's Chain of Galaxies in Virgo, 



    
        

            S. Stirling