Gum 17

Combination of 10, 5 minute images using H-alpha, SII and OIII filters.
SBIG STL-1001E CCD camera. 5" f/5 refractor at prime focus.

Gum 17, is a large though faint nebula in vela close to the the Vela Supernova Remnent. The above image was processed using the ESA palatte, with the h-alpha images being used for the red channel. Below is the same image, this time processed with the HST palatte with the SII images used for th red channel.