@janallmac
Got a Samsung?
Use "pro" mode.
Set "ISO" to 100
Set focus to infinity.
Set your shutter speed to about 350.
Max zoom on your camera and if you can use a tripod, do.
When you are very zoomed in you need to do everything you can to reduce camera shake. So I also set a ten second self timer as even *touching* the phone causes movement and that guve time for it to stop before releasing the shutter.
Bear in mind I was also using a clip on telephoto lens.

@stueytheround
I am so going to try that! I didn't know about pro mode. Thanks!

@janallmac Look under "more" when you have the camera app open.