It is possible according to stellarium source forge discussion
and there are programs for that called Stellarium
But it may be slow on the pi. On their website, one person got 18 fps. The new raspberry pi 3b maybe faster and have 1 GB ram, zero might be slower.
I haven't used GPS with raspberry but will the GPS fit ? and you should need a good battery to power it .
So in one words its feasible, maybe you'll need better hardware.