Here’s visibility area: https://www.heywhatsthat.com/?view=EQT4CXUK https://www.heywhatsthat.com/?view=EQT4CXUK There have been photos even from Rize, Turkey 3

Here’s visibility area: https://www.heywhatsthat.com/?view=EQT4CXUK https://www.heywhatsthat.com/?view=EQT4CXUK There have been photos even from Rize, Turkey 300km, albeit very-very blurry. But I think you are most definitely right: I checked and it’s only 240 from the straight line in my case (my memories of something closer to 290 is more about road distance)