Spindle Galaxy (NGC 5866) - edge-on lenticular galaxy with a thin dust lane. ~50 million ly.
Scope: ~2500mm: 127-150mm Mak/SCT (+Barlow)
Camera: Colour OSC (e.g. IMX533/585) + UV/IR cut
Exposure: 120-180s subs, 3h+ total (guided)
