Bullialdus

Sketching: For this sketch I used: black Strathmore 400 Artagain paper, 9”x 12”, white and black Conte’pastel pencils and a blending stump. Brightness was slightly decreased (-3) and contrast increased (+2) after scanning using Microsoft Office Picture Manager. Telescope: 10 inch f/ 5.7 Dobsonian and 6mm eyepiece 241x Date: 5-15-2008 2:10 - 3:45 UT Temperature: 8° C (46° F) passing clouds, calm Seeing: Antoniadi III Co-longitude: 28.8° Lunation: 9.6 days Illumination: 78.5 % Phase: 55.3° Observing Location: +41°37' +87° 47' Frank McCabe