I've used this app [1] for years. It has some paid features you probably don't need or want, but the free version will show you all kinds of constellation info.

I've used this app [1] for years. It has some paid features you probably don't need or want, but the free version will show you all kinds of constellation info. [1] https://play.google.com/store/apps/details?id=com.chartcross.gpstest https://play.google.com/store/apps/details?id=com.chartcross...