The Sun with a sunspot group sketched by Richard Baum of Chester England, February 14, 1988 at 12:50 UT (left), February 21, 1988 at 11:20 UT (center), and February 23, 1988, at 9:20 UT (right).
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.