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Crater Eddington


Crater Eddington

Sketching: For this sketch I used: black Strathmore 400 Artagain paper, white and black Conte’ pastel pencils and a blending stump. After scanning, Brightness was slightly decreased (-3) and contrast increased (+3) using Microsoft Office Picture Manager. Telescope: 10 inch f/ 5.7 Dobsonian and 9 mm eyepiece 161x Date: 6-17-2008, 2:55-3:50 UT Temperature: 19° C (67° F) Clear, transparent, calm Seeing: Antoniadi III Colongitude 72.7 ° Lunation 13.4 days Illumination 98 % Frank McCabe






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