Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  62 Cyg  ·  IC 5070  ·  NGC 6989  ·  NGC 6997  ·  NGC 7000  ·  North America Nebula  ·  Pelican Nebula  ·  The star 56 Cyg  ·  The star 57 Cyg  ·  The star ξ Cyg
NGC7000 and IC5070 in RGB, Thorsten Glebe
NGC7000 and IC5070 in RGB
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NGC7000 and IC5070 in RGB

NGC7000 and IC5070 in RGB, Thorsten Glebe
NGC7000 and IC5070 in RGB
Powered byPixInsight

NGC7000 and IC5070 in RGB

Equipment

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Acquisition details

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Description

A well known view on Northamerica + Pelican Nebula taken with the Takahashi Epsilon 160ED combined with my OSC imaging train.

In the Pixinsight processing I separated in the linear stage luminance from color data and stars from the nebula. Then I strechted them individually and recombined them in the nonlinear stage. This gives a lot of control over brightness, contrast and saturation. Finally I used the further enhanced version of the ColorMask script to do fine adjustmens. The script allows to specify not only hue but also intensity, which enables the creation of very specific masks for bright or dimm areas of the picture.

I attach the most recent version of the script here:
ColorMaskTG.js

How to use the script in PixInsight
1. Change "Readout Data" to "HSI".
Screenshot 2022-09-25 101306.png
2. Use the image cursor to determine minimum and maximum hue ('H'-value) and intensity ('I'-value) of the image area you want to process. Remember the values.
Screenshot 2022-09-25 101422.png
3. Start the modified ColorMask script ('ColorMaskTG.js') and type in the hue and intensity range. For an unsharp mask, also specify the wavelet layers to remove.
Screenshot 2022-09-25 101626.png

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