night photography

I am wondering which would be the better camera for night time photography between the Samsung WB850f and the Sony hx20v... I am a keen yet amateur, point & shoot, photographer who will hopefully be taking in the Northern Lights later in the year & would like to experiment with night photography to try & catch a half decent shot on my trip but understand that RAW is advisable and that the Sony does not have this feature.

My budget ceiling is £260 and although I am not too sure what features I should be looking at, these 2 cameras have caught my eye due to ISO & exposure.

Any advice would be greatly appreciated.  Thanks.