Two sketches showing how I progressively sketch a difficult object. Each sketch is about 1.5 hours of effort at the eyepiece.
As I observe, features brighten into view, more extensions and
graduations are noticed. The subsequent night, aided by my initial
sketch, I remember visually what I saw and gradually see more of the
supernova remnant. To focus on the nebulosity, I printed the stars using Sky Safari Pro, with the star magnitude set to emulate what I could see through the telescope.
Surprisingly, I cannot see the short arcs visible in Howard
Banich's 28 inch [71cm]. Instead I see broad featureless strokes of
varying brightness and thickness. I am able to see the SN's features
with scopes from 6 inches [15cm] to 13.2 inches [34cm].
For notes and finder charts, see Reiner's superb research. Also this thread on the Cloudy Nights Sketching forum.
Mel Bartels, July 2015