Here I have added wider field data taken with the Esprit 100 and ASI 071 (122 x 1.5min, gain 200, offset 30, -15°C) to the data I took the day before, which was 48 x 3 min RGB from the ASI071 (gain 200, offset 30, -15°C) sitting on Esprit 150, and 67 x 3 min Ha (Baader 7nm) from the ASI1600 (gain 139, offset 59, -20°C) sitting on Esprit 100. Stacking and calibration (only master dark subtraction) in PI, processing in PS.
Sh2-140 is apparently largely hidden by the dark nebula called Lynds 2304. If you want to see a nice close up (caught with an 8" SCT) of the central part of the nebula, with some clear pillar structures, and an interesting write-up about it, have a look at Jason Guenzel recent post. He calls it the Hidden Nebula:
https://www.astrobin.com/377160/
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