This panorama was created by stitching 11 photographs together with 1/3 to 1/2 of overlap.
I was fortunate enough to have the perfect conditions the night I took these photos. Taken around 3:00 AM, there was hardly a cloud in the sky. The town of Santa Rosa (on the right, below horizon) was just far enough away to create a little warmth in color but not close enough to wash away the milky way with it's light pollution.
The green color (low to the horizon) is not from an aurora but conditions know as "air glow".
The panorama is a 180 degree view facing directly east.