NEX-5 Does Astrophotography

This is my first post after following the NEX thread for a few months. I've had a NEX-5 since June and love it! It's my first real camera after plenty of P&S. (Panasonic TZ3 was the latest) I didn't see a lot of threads about what it could do in the area of astrophotography. I thought I'd share a few photos from my intro into astro.

Pictures 1, 3, 4, and 5 are taken from a C-90 Equatorial tracking mount that a coworker let me try out. I used a couple of manual focus lenses from my dad's old Sears (Mamiya) 1000 MXB. I'm looking into getting an EQ mount myself, maybe a CG5-GT or an Astrotrac.

Let me know what you think!