The second sketch was through a homemade 10-inch F/7 Dobsonian, with a 40mm Koenig eyepiece (45x). November 3, 10:29pm - 10:40 pm PDT. This sketch was also from my driveway in the middle of light-polluted San Francisco, surrounded by six streetlights. Seeing 7/10, Transparency 2/10. The sketch was made with Staedtler sketch pencils and blending stump on Strathmore 400 series drawing paper. It was scanned and processed on a Macintosh using Pixelmator graphics software.