Aurora over Ireland right now

Thanks for the examples Dave. It makes a bit more sense to me now. By the way in reading back my last post I'm wondering how you understood what I was asking I swear all I had was a coffee.

Thanks for the misleading headline guys, gotta bit excited there for a while...

interesting stuff, il bookmark that page and keep an eye on it,
Thanks

Mark - glad it makes more sense, it's not the first time I've been asked that Q

Michael - 3 flux gate magnetometers, buried 2meters underground, aligned to the Earths x, y , z magnetic axis, connected to my Dell laptop with about 40m of CAT5 network cable. Absolute nightmare, these things are temperature sensitive 150nT/ degree C, if the fridge door is opened they'll pick it up, anyway after 5 years of work I've fianally got a dependable system. Still think geomagnetometry is a black art though

DaveG

Crikey...and who says astronomy isn't an extreme sport....