Cassiopeia & Andromeda

Experimented with stacking images last night and although it's early days I was surprised to spot the Andromeda galaxy in the resulting image here. 
The W shape of Cassiopeia is in the middle to upper left and the small smudge in the lower right quarter is Andromeda.
Not much but a little thrill spotting the thing that is going to barrel through our galaxy in about 4 billion years time. Will try some more and work on the technique before then I think.