Which camera is best for night sky at the reasonable price up to 1000$?

I'm going to Banff, AB canada this summer and will be stopping by yellowstone WI for few days too. Can you imagine how beautiful will that be! So far i found reasonable price and i would love your opinion on those 2 camera i found.

Nikon Digital SRL Camera with Compact 3x Zoom DX-NIKKOR Lens with SWM and VR Function - 24.2 Megapixel (D3200KIT)

Canon EOS Rebel T3i - 18.1 Megapixel Digital SLR Camera (5169B003)

Www.cameraciz.blogspot.ca

checkout second link on