Combination of 10, 3 minute images using an H-alpha and OIII filters.
SBIG STL-1001E CCD. 300mm f/6 newtonian at prime focus.
Gum 25 is a fairly small emission nebula in Vela, surrounding a short chain of 10th and 11th magnitude stars. It is situated about 1.5 degrees south of Gum 23. It is relatively bright and quite easy to observe with an 8" telescope under dark skies.
The small open cluster in the bottom right is Cr 205. The bright nebulosity to the upper left, I have not been able to track down a designation for.