Aurora In The Arctic ~ Help NEEDED!!!

[trout bum]

also posted in Help section...

The Aurora were out something fierce last night, more breathtakingly than I've ever seen them. I need some help though! They're going to be out again tonight and I need to get rid of the noise, or minimize it at least. If possible. That being said, I need the advice of people who know more than I do and this forum has always provided that kind of input.

Shooting settings were as follows... f/14, 58.8 seconds exposure time, iso 1250, +3 exposure bias, show with a Nikon D300s, AF-S Nikkor 16-85 MM 1:3.5-5.6 using tripod and remote cord.