M51 deep
Hans Wrage's track-and-accumulate image of M51, Whirlpool Galaxy.
M51 wide
Rohit Menon, Bill van der Kooi, and David Singleton's images of M51.
RGB combined, in a nice mosaic.
Spindle Galaxy
Adam Nave and Christine Frieberg's RGB image of the Spindle Galaxy.
Messier's mistake, M40
Ben Doom and Laura Chasman's RGB image of M40, the Messier catalogue
entry that is not a true "Messier object".
Sunflower Galaxy
Brooke Darrah and Mary Wallroff's RGB image of the Sunflower Galaxy.
M104, Sombrero Galaxy
Katherine Elliot and Heba Amin's RGB image of M104, the Sombrero Galaxy.
Ghost of Jupiter Nebula
Lissa Miller and Melissa Hysing's RGB image of the Ghost of Jupiter,
a poorly named Planetary Nebula.