Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  M 39  ·  NGC 7092
Getting plate-solving status, please wait...
M39 Open Star Cluster in Cygnus, 



    
        

            Mike Oates
M39 Open Star Cluster in Cygnus
Powered byPixInsight

M39 Open Star Cluster in Cygnus

Getting plate-solving status, please wait...
M39 Open Star Cluster in Cygnus, 



    
        

            Mike Oates
M39 Open Star Cluster in Cygnus
Powered byPixInsight

M39 Open Star Cluster in Cygnus

Acquisition details

Dates:
Oct. 1, 2017
Frames:
Blue: 30×60(30′) bin 1×1
Green: 23×60(23′) bin 1×1
Ha 3nm: 17×600(2h 50′) bin 2×2
Red: 30×60(30′) bin 1×1
Integration:
4h 13′
Avg. Moon age:
10.46 days
Avg. Moon phase:
80.45%
Bortle Dark-Sky Scale:
8.00
Mean SQM:
18.50

Basic astrometry details

Astrometry.net job: 1769090

RA center: 21h32m17s.3

DEC center: +48°2132

Pixel scale: 1.435 arcsec/pixel

Orientation: 359.945 degrees

Field radius: 0.854 degrees

Resolution: 3266x2770

File size: 6.6 MB

Locations: The Hills Observatory, Manchester, United Kingdom

Data source: Backyard

Description

The first image is how you would normally see the cluster in RGB

The second is with an extra 17 x 600s bin2x2 exposures added.

As far as I know this could be the first time M39 has been shown against a backdrop of Ha nebulosity. The Ha is pretty faint and has to be pushed a bit to get it out of the noise.

The image started out as a quick image in RGB taken in less than 90 mins, very quick for me and I wanted to demonstrate that you don't have to take long exposures to get some great looking images.

When I was processing the image I could see that there are areas of dust and I took it further to try and show this better. I tried a Ha filter which seemed to work, so took some more.

Comments

Revisions

  • Final
    M39 Open Star Cluster in Cygnus, 



    
        

            Mike Oates
    Original
  • M39 Open Star Cluster in Cygnus, 



    
        

            Mike Oates
    B

B

Description: With Ha added

Uploaded: ...

Sky plot

Sky plot

Histogram

M39 Open Star Cluster in Cygnus, 



    
        

            Mike Oates