Comet 17P/Holmes: October 25th 2007
This is my first snapshot of this most unusual comet. The starfield was imaged using a Televue NP101is and a Fuji Finepix S2 digital body. The head of the comet looks very circular but overexposed at 30 seconds. Shorter exposures of 1 second were used for the stacked image in the inset. Here the pseudo-nucleus is visible and a very distinctive halo.
Telescope: Televue NP101is
Camera: Fuji Finepix S2
ISO: 400
Exposure: 30 seconds for starfield; 1 second for comet head. effective aperture for starfield f/5.4 for comet head f/11 using 2x Powermate.