Crater Maurolycus

Sketching: For this sketch I used: black Strathmore 400 Artagain paper 9”x12”, white and black Conte’ pastel pencils and a blending stump. After scanning, Brightness was decreased (-4) and contrast increased (+4) using Microsoft Office Picture Manager. Telescope: 10 inch f/ 5.7 Dobsonian and 6 mm eyepiece 241 x Date: 7-23-2008, 5:45-7:10 UT Temperature: 20° C (68° F) Partly Cloudy, calm Seeing: Antoniadi III Colongitude 154.2 ° Lunation 20.2 days Illumination 76.3 % Frank McCabe