Taken using the TS-Optics 130 APO with Riccardi 0.75 reducer
ZWO ASI 294mc Pro
ZWO ASIAIR Skywatcher NEQ6 PRO
Using the Optolong L-Ultimate to bring out the nebula.
This is just on 3 hours acquisition time (60 x 180s) a few weeks ago when we had some milder weather.
In Astropixel Processor combined and extracted HA and O3
Recombined using the Foraxx palette in Pixinsight and finalised in Photoshop.
If I had a greater aperture and focal length i would have focused in on Magic mountain to the upper left of the Keyhole.
One day.......
Astrobin
