[rally]

Steve,

Looked it up in Aladin
Its labelled as a Galaxy
Their photo shows it to be much less red than your image

Ive attached a couple of screen shots of your image on left and theirs on the right normal and zoomed right in
I ran out of time to check the angular dimensions in both your image and the Aladin data, but that would be my next step - its supposed to be 1.4x1.1arc mins
Could there be a galaxy in the middle of dim nebula ?
Or have you just enhanced the galactic glow and increased its red by the enhanced Ha contribution ?