M16 in the constellation Serpens Cauda is a young open cluster and associated hydrogen-alpha emission nebulosity. It is around 5700 lightyears distant, while the nebulosity is estimated to be 150 lightyears across.
Just below the centre of the image can be seen the 'pillars of creation', as famously imaged by the Hubble space telescope. The hydrogen clouds containing protostars are being stripped away by stellar radiation.
This LRGBHa image is the result of 3h25m of data capture over three evenings in July 2021, remotely imaged from Spain with an SBIG STL-6303 camera through a 12.5-inch Planewave CDK reflector.
Date: 13/07/2021
Photographer: Graham Wilcock