Thunderstorm Sprite - 18th September 2023

One of my meteor cameras caught an example of this unusual form of lightning last night. There'd been a huge thunderstorm over us around midnight, but this is from a far more distant thunderstorm somewhere to the north. This is lightning that reaches up towards the ionosphere. To see it you need clear skies and a suitably distant thunderstorm. There have been some really spectacular examples posted to the meteor network groups recently, but this is the first one I've noticed on one of my cameras...