Eskimo Nebula, NGC 2392
Adam Block says: "The Eskimo nebula represents a huge challenge to capture well without a space-based telescope. This object is similar in size to the disk of Jupiter. The details are extremely difficult to capture since they are at the limit of what the blurring atmosphere permits. The Hubble Space Telescope image of this object, although astonishing, still presents us with an issue- what does it look like in full color (RGB) at that resolution? Well, this image doesn't achieve anywhere near the resolution- but hints of the answer are displayed with intricate inner ribbons and pink spoke-like projections."