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The Double Cluster in Perseus in RGBHA, 



    
        

            Antoine Grelin
Powered byPixInsight

The Double Cluster in Perseus in RGBHA

Getting plate-solving status, please wait...
The Double Cluster in Perseus in RGBHA, 



    
        

            Antoine Grelin
Powered byPixInsight

The Double Cluster in Perseus in RGBHA

Acquisition details

Dates:
Nov. 1, 2022
Frames:
120×600(20h)
Integration:
20h
Avg. Moon age:
7.62 days
Avg. Moon phase:
52.54%

RA center: 02h20m37s.78

DEC center: +57°0747.4

Pixel scale: 1.155 arcsec/pixel

Orientation: -179.550 degrees

Field radius: 1.782 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 9282x6076

File size: 46.3 MB

Data source: Own remote observatory

Remote source: Utah Desert Remote Observatories

Description

The Double Cluster in Perseus is a popular target among amateur astrophotographers, it is an easy object to capture, and it is most of the time imaged in RGB.

I stumbled upon wide field pictures of the area and saw that there was a lot of HA signal behind and all around the clusters. I decided to give it a go with a focal length of 655mm, which hasn’t been done much apparently.

I spent one night capturing R, G, and B signal. Then I spent 3 extra nights (20 hours) imaging but this time with a hydrogen alpha filter. Even with 20 hours of exposure in HA, it was difficult to bring out the gas during processing because it is still relatively faint in this area of the sky. This is what I was able to achieve. You can see the beautiful Double Cluster, and an incredible amount of HA gas behind and around.

Comments

Sky plot

Sky plot

Histogram

The Double Cluster in Perseus in RGBHA, 



    
        

            Antoine Grelin