more data on NGC 40 (Halifax)

I collected data on NGC 40 back in August 2016. But I did not gather hydrogen alpha or ionized oxygen. So I queued up BGO.

 FITS Liberator, GIMP. North is up; east is left. For all.

Luminance, 10 seconds subexposures, 20 stacked shots.

Hydrogen α, 30 seconds subexposures, 10 stacked shots. Big and bright! Lots going on.

Oxygen III, 30 seconds subexposures, 10 stacked shots. Round! And compact. Very interesting.

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Processed in colour on 17 Sep '22.