Galaxies M87, NGC 4476, and NGC 4478 sketched by Christopher Heil using an 8-inch f/10 SCT at 120x from Silver Spring, Maryland.
David J. Eicher library
To learn more about astronomical sketching, Astronomy magazine subscribers can access my Astronomy.com video "Sketching from the telescope" and read Glenn Chaple's Observing Basics column "Sketching 101."
See the rest of the Sketching at the telescope series.