Highlands Between Grimaldi and Mersenius

Sketching: For this sketch I used: black Strathmore 400 Artagain paper, 8”x 11”, white and black Conte’pastel pencils and a blending stump. Brightness was slightly decreased (-5) and contrast increased (+6) after scanning using Microsoft Office Picture Manager. Telescope: 10 inch f/5.7 Dobsonian and 9mm eyepiece 161x Date: 3-20-2008 4:50 - 6:00 UT Temperature: -2°C (28°F) clear, calm Seeing: Antoniadi III Co longitude: 66.9° Lunation: 12.5 days Illumination: 97.5 % Phase: 18.4° Observing Location: +41°37' +87° 47' Frank McCabe