Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  56 Cyg  ·  57 Cyg  ·  IC 5070  ·  LBN 350  ·  LBN 353  ·  LBN 359  ·  LDN 933  ·  NGC 6989  ·  Pelican Nebula  ·  The star 56Cyg  ·  The star 57Cyg
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The Pelican Nebula (The Pelican Nebula), 


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The Pelican Nebula (The Pelican Nebula)

Revision title: The Pelican Nebula

Getting plate-solving status, please wait...
The Pelican Nebula (The Pelican Nebula), 


Powered byPixInsight

The Pelican Nebula (The Pelican Nebula)

Revision title: The Pelican Nebula

Acquisition details

Aug. 15, 2021 ·  Aug. 23, 2021 ·  Aug. 27, 2021 ·  Oct. 23, 2021
Chroma Ha 3nm: 75×300(6h 15′) (gain: 1.00) -10°C bin 1×1
Chroma Ha 3nm: 76×300(6h 20′) (gain: 1.00) -20°C bin 1×1
Chroma OIII 3nm: 101×300(8h 25′) (gain: 1.00) -20°C bin 1×1
Chroma SII 3nm: 52×300(4h 20′) (gain: 1.00) -10°C bin 1×1
25h 20′
Flat darks:
Avg. Moon age:
15.01 days
Avg. Moon phase:
Bortle Dark-Sky Scale:

RA center: 20h51m22s.15

DEC center: +44°2654.8

Pixel scale: 1.143 arcsec/pixel

Orientation: -21.457 degrees

Field radius: 0.976 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 4867x3745

File size: 8.0 MB

Locations: Home Terrace, Oensingen, Solothurn, Switzerland

Data source: Backyard


A well defined ridge characterizes the famous bill of the Pelican nebula. Also known as IC 5070, this emission nebula lies close to the North American nebula, divided by an evident dark rift. Other dark clouds and twin jets emerging enrich this suggestive area that lies about 2000 light-years far from us The image is the result of a total of 25 hours integration across multiple nights:
  • Ha: 24-25-26th August, 19-20-22-23th October 2021
  • O3: 27-28-29th October 2021
  • S2: 14-15th August 2021

This data was gathered across months... due to bad weather and fog I tried to point always something closed to the azimuth in order to have the best possible outcome. At some point I lost track of how much data i gathered and went beyond my normal exposure time. And this is also considering that i trashed 6-7 hours of very bad frames.

The image is fully processed in Pixinsight

All started calibrating each light with dark (from my library) and with flats (taken each nights - flat & dark flats) with ImageCalibration
SubframeSelector to weight all the lights.
I took the frame with lowest FWHM as reference to align all the channels with StarAlignment and stack them with Image Integration

Linear Phase per channel

An initial round of MureDenoise to start leads to some nice 'free' noise reduction
I extracted the background with AutomaticBackgroundExtractor
I use LinearFit to balance the channels

Linear Phase channel combined
I use PixelMath to obtain the HOO or the SHO versions
It's necessary to start preparing some mask: the star mask using the Starnet process is a good place to start. After that a simple luminance extraction will give a B&W mask
I create some mask and apply some soft round of MultiscaleLinearTransform for denoising, especially the background
I love the PSF Image creator script by Hartmut V. Bornemann to obtain the PSF image for Deconvolution
I use one round of soft Deconvolution, selecting the starnet starmask for deringing

Nonlinear phase
At this point I linearize the image and work on the CurveTransformations with some ColorMask to obtain the colours I like the most. I try to do small modification each time
I use Convolution and then LRGBCombination to reduce chrominance noise
I crop the files to the format I like

You can see the editing process  (and the trial and error of course) of how I reached the final HOO version on the recording of my live streaming on Youtube .
I usually stream also on Twitch .

I hope you like it



  • The Pelican Nebula (The Pelican Nebula), 


  • Final
    The Pelican Nebula (The Pelican Nebula), 




Title: The Pelican Nebula

Description: SHO Version

Uploaded: ...

Sky plot

Sky plot


The Pelican Nebula (The Pelican Nebula), 



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