What is that object passing near Capella?

What is this!!! In 4 minutes, the object moved 1 degree across the sky. When I saw it near Capella, I thought it might be a supernova, since visually the object didn't appear to move—only in the photo did I notice trailing from the 20-second exposure. Captured on August 17, 2020, at 23:40 Moscow time.