If that was the case, to see Snowdon from Ireland, or Ireland from North Wales would be an impossibility. Which it isn't, because I've seen Ireland from here many times.simple trig tells you the nom 'sea level' at base of Sownden from this point is about 2miles below the horizon. Pic is bollox.
If that was the case, to see Snowdon from Ireland, or Ireland from North Wales would be an impossibility. Which it isn't, because I've seen Ireland from here many times.
Earth curvature 8 inches per mile.
100 miles ish for easy calculation, 800 inches, sixty odd feet.
You can see Scotland, Wales, Ireland and England from Snaefell.I’ve seen, at sunset, the Isle of Man from Blackpool. Ok, it was only a silhouette, but it was very sharp and I was only at about sea level with Snaefell about 65 miles away.
So I’d say that photo is entirely possible.
Edit to add: Snaefell is only about 2000ft.