Using an All-Sky Camera to Define the Local Horizon for Astrophotography
Many of us have the all-sky lens that came with the original ZWO ASI120MM or MC camera. I use that lens to acquire 11 hours of images of my "problematic" southern horizon and then use Stellarium to identify the azimuth and altitude of stars that cross the horizon. This approach defines a horizon file for use in Stellarium and NINA for planning imaging sessions.