Noctilucent Clouds (NLC) over Surrey

The Summer night sky can be a bit frustrating in the UK. Clear nights are few and far between, there is no astronomical dark, as the nights are so short and for half the month, the moon knocks out any darkness that may be left.
So Milky Way shots are hard to come by and the Summer constellations aren't as interesting as the Winter ones.
One target I've been trying to capture for a couple of years is Noctilucent Clouds. They only appear in May/June and only between about 45 and 55 degrees Lattitude.
Even then, you never know where/when they will appear.
After a couple of nights of seeing everyone else's shots (from as far South as London and even Stonehenge), I headed out at 3am with my son to see if I could capture them over Surrey.
Here's the results... quite a nice display and much higher above the horizon than I was expecting...

What are Noctilucent Clouds?

Noctilucent Clouds over Surrey
From Curley Hill, Lightwater
Canon 77D, Canon 55mm kit lens, ISO400, f4.0, 4sec exposure