NGC6888 in Cygnus, the Crescent Nebula, is a tiny wisp of a thing in a constellation containing the equally tenuous Veil Nebula. The sketch shows why I do not like using the half metre telescope in Portugal for drawing. With Cygnus high in the sky, I was perched on the top of a ladder leaning over the mighty girth of the telescope to reach the eyepiece, trying to balance drawing pad, pencil and torch. I concentrated on what was important and omitted that which wasn't.
The first photograph was taken with a 12 inch reflector, but on a night of high winds that made guiding almost impossible and the stars a little large. The second was taken using exactly the same telescope and shows the masses of stars in this part of our galaxy and the subtelty of the nebula.