"Butterfly nebula" Minkowski 2-9 with large aperture
After I could see and sketch the faint arms the first time with my old 16" a became a fan of this unique object.
Last new moon I had the chance to observe this with my 27" under perfect alpine skies (7500 ft). The views were stunning - the arms were bright enough to detect the conical shape. To my surprise I could also detect the brighter stellar spots in the middle of the arms.