In this small portion of the very vast Vela SNR we can see the recently discovered Hydrogen arc...
Referred as 'The Vela Bubble' ( the Red circle 'ear' on the Left side)

This whole region is very dim - requiring 15 minutes of each frame to get a descent signal (with a 24" telescope!!!)

This is A HOO image:
Hydrogen data 4 Hrs mapped as RED
Oxygen data 3 Hrs mapped to Green and Blue

RGB data was used for the stars and the space color - 15 min per channel
Total of about 8 Hrs.

Telescope: ASA600 24" RC with Reducer at f4.5
Mount: ASA DDM200 Direct Drive with Absolute Encoders
Camera: Moravian G3 61000 pro

Imaged from Tivoli farm, Namibia