The Pelican Nebula is around 1800 lightyears distant, these images showing the main part of the 'head' of the nebula.
They are the result of 8h of narrowband data capture, over four evenings in August 2022. This consisted of 4h of hydrogen-alpha data capture and 2h each using Oxygen-III and Sulphur-II filters.
The result is three very different images, with different mapping of the narrowbands to RGB. The image on the left is the most realistic, with Ha mapped to red. The image at far right uses a Hubble palette, with Ha mapped to green.
A ZWO ASI2600MM Pro camera was used through an 8-inch Teleskop-Service Ritchey-Chretien reflector, from Horsham.
Location: Horsham, West Sussex
Photographer: Graham Wilcock