Astonomy and Aurora chaser’s window

If you chase aurora, the Kp index and aurora layer are effectively an
early-warning system sitting on your desk instead of something you
have to remember to check. A Helioclock display running in a window
where you can see it from across the room means you notice a Kp spike
without actively monitoring for one.

The planetary and moon data are useful for astronomy, as is the weather forecasts.