NGC2403 in Camelopardalis

Observation Notes

I did a major reprocess of this beautiful spiral galaxy. In particular:

1) added Ha data

2) new workflow including NoiseXterminator

3) stretching using the fabulous GHS script (thanks @Gunshy61 and @mike1485)

4) removing and re-adding stars with screen blend rather than simple addition (thanks Russell Croman)

5) have a reasonable workflow to correct chromatic error (in particular in blue) owing to Celestron's reducer

and many more little details/experiences

Technical Details

View the full-resolution image together with complete acquisition and processing details on AstroBin.