The lunar crater Aristarchus and the Schröter Valley sketched by Jay Albert using an 8-inch f/10 SCT at 301x on November 27, 1982.
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.