My moment was observing the whole solar system in a single session mid-winter. I realised that every Planet and Minor Planet was above the horizon at some point so I pulled an all nighter to view and take an image of them all.
It's easy enough up until Pluto, but I was amazed to get the outer three also. Eris was damn hard at 18th mag and in the dawn sky. The 'Earth' shot is me, knackered, at about 5 in the morning