Comet C/2004 Q2 (Machholz)
This comet reached naked eye brightness at the beginning of 2005 and it passed quite close to the Pleiades.
Canon EOS 10D 100-400mm lens @ 210mm 28x10s f/4.5 ISO1600 2005:01:08 18:44:44 - 18:52:06 UT
Canon EOS 10D 28-105mm lens @ 55mm 32x15s f/4.5 ISO1600 2005:01:05 20:21:06 - 20:30:58 UT
These photos were taken from the City of Newcastle upon Tyne, heavily light-polluted (at least 8 on the Bortle scale).