NGC 6992
The Veil Nebula is comprised of three main elements - the Eastern Veil (shown above), the Western Veil and Pickering's Triangle. It is the remnant of a supernova explosion and is one of the most beautiful objects in the night sky. Visual observers may have difficulty seeing the detail unless they use an oxygen III filter.
This image was taken through a hydrogen alpha filter.
OTA: William Optics Star71
Camera: Atik 460ex w/EFW2 filter wheel
Filters: Astrodon Ha (3nm)
Mount: CGEM DX
Exposure: 3h 45m (15 x 15m)
Data obtained: July - October 2014