[redundantly]

Fully powering off the camera will help, but I imagine with direct sunlight going through the lens and hitting the sensor the heat could still damage it, despite it not recording.

[dylan604]

if you have a camera pointing up, then unless you live on the equator, the sun will not be directly overhead for the vast majority of people.

[caphector]

I have a sky camera (use it for weather and sky observations; my airspace is a bit busy for easy meteor observations). So far my sensor seems to be fine despite an unblinking gaze upwards.

[timthorn]

Looking at the GitHub, the code downloads aircraft movements to avoid false alerts.