Comet over Cambridge!

This is comet 2006/P1 McNaught; it's appeared rather unexpectedly, and you can see it very close to the western horizon around sunset, about ten degrees to the right of Venus, until about Sunday - I went to the top of Castle Hill at 5:10 for this shot (after excitingly summoning the whole company!), and it had nearly set.

[ISO1000, 10 seconds, 200/5.6, cropped and brightened in gimp for top one, unaltered below]