Salvaged data; M33 (Triangulum)

[glennbech]

A couple of nights ago I shot M33 mainly to test the sky and my guiding. I managed to over expose the red channel and took no flats. After having great success with a primitive set of flats (twilight sky during setup) I revisited my data with the new flats and stacked again.

I had to remove the red channel from the resulting image as Deep Sky Stacker created a strange red channel...

Any Ideas? It's NOT from my light frames, flat or dark. Im hoping someone may shed some light on this :-)

William Optics Megrez 90 w/0.8 Focal reducer

8 x 5 minute subs @ ISO 800

Darks and flats subtracted.

Red channel over exposed and hence removed.

Anyhow; With the pretty bad starting point; things can only get better. I'm quite pleased based on the bad data, flats from another session etc. :-)

[Beyond_Vision]

Hope you dont mind Olly had a bash at getting rid of the gradient

(click to enlarge)

Regards

Kevin

[Psychobilly]

Thats a nice re-process Kevin

But Olly? I thought it was Glenn's image

Billy...

[glennbech]

If you Olly can tell me how he removed the gradiant; he is forgiven :-)

[Tim]

Thats right Fred.

Nice pic btw!! Lucky to get anything from that, well done.

[hairycrab]

Nice shot of the M33!

[glennbech]

Had a go at removing a gradient with GradientXterminator myself. Quite what a difference!