4.5 hours of Horsehead

Crappy shootout on the whole. The final 2.5 hours were really a mess. Flexure, focus change due to temp change, broken down remote control wire, so no dark frame...

Won't be able to do Horsehead again the coming days anyway, so let's call it that.

Horsehead Nebula

I was actually hoping I could get much more exposure on this one, but weather didn't permit, so that's it for the time being I guess.

Optics: Takahashi Sky90 with reducer (407mm F4.5)
Tracking: Takahashi EM11 T2M, autoguided by 50mm finder/guider, PHD
Camera: Canon 5DII modified,
Exposure:
31/1/2014 - ISO800 (5 min x 12)
28/1/2014 - ISO1600 (4 min x 15)
Total 2 hours

Hong Kong Astronomical Society Observation Site