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Contains:  12.14, 87 Sylvia, Sh2-240
Getting plate-solving status, please wait...
Simeis147 HOO, 



    
        

            mikefulb
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Simeis147 HOO

Technical card

Imaging telescope or lens:CANON 200 f/2.8

Imaging camera:ZWO ASI1600MM-Cool

Mount:Astro-Physics Mach1GTO

Guiding telescope or lens:Finder Guider

Guiding camera:ASI 120MM-S

Software:PixInsightKstars/EkosINDILibPhotoshop CS3

Filters:Astrodon OIII 1.25 3nmAstrodon Ha 1.25" 5nm


Dates:Nov. 10, 2018Nov. 17, 2018Nov. 27, 2018Dec. 5, 2018Dec. 11, 2018

Frames:
Astrodon Ha 1.25" 5nm: 94x300" (gain: 200.00) -15C bin 1x1
Astrodon OIII 1.25 3nm: 135x300" (gain: 200.00) -15C bin 1x1

Integration: 19.1 hours

Avg. Moon age: 12.58 days

Avg. Moon phase: 34.54%


Astrometry.net job: 2595496

RA center: 5h 40' 15"

DEC center: +27° 59' 46"

Pixel scale: 16.085 arcsec/pixel

Orientation: -2.338 degrees

Field radius: 3.023 degrees


Resolution: 1087x806

Data source: Backyard

Description

A very tricky faint object. I had some issues with the Astrodon OIII filter flat fielding properly which complicated reduction considerably. I had to really clamp down the corners which probably compromised any nebulosity that might be present there.

I'd only taken H-alpha versions of this image previously so it was nice to at least have some color.

Comments

Author

mikefulb
mikefulb
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Revisions

  • Final
    Simeis147 HOO, 



    
        

            mikefulb
    Original
  • Simeis147 HOO, 



    
        

            mikefulb
    C

C

Description: Higher resolution version - avert your eyes! It does show how nice and sharp the Canon 200mm lens can be. I have not done any sharpening on the image - the SNR wouldn't tolerate it...

Sky plot

Sky plot

Histogram

Simeis147 HOO, 



    
        

            mikefulb