I managed to capture another three hours of exposure on the Horsehead using a longer dew shield made out of some parcel envelopes to stop flaring from the car dealership lights.
This is 5h45m of 3 minute frames (115x3m) from our downtown balcony captured on January 16 and 18 2021 using an Askar 108mm, Canon Ra at iso 800 on the first night and 1600 the second night, and a Hutech NB1 filter.