Jump to content


Wilhelm Crater

Wilhelm Crater

Sketching: For this sketch I used: White CPP sketching paper, 9”x 12”, HB and 4B charcoal pencils, a blending stump, gum and pink pearl erasers. After scanning, Brightness was slightly decreased (-2) and contrast increased (+2) using Microsoft Office Picture Manager. Telescope: 10 inch f/ 5.7 Dobsonian and 6mm eyepiece 241x Date: 1-6-2009 1:30 - 2:50 UT Temperature: -8° C (17° F) clear, calm Seeing: Antoniadi III Co-longitude: 26.8° Lunation: 9.55days Illumination: 67.1 % Phase: 70° Frank McCabe

    Absolutely Awesome Frank! :) Amazing depth to the craters and wonderful accuracy! Gorgeous tonal balance, from deep black along the terminator to the bright crater rims. Stunning work sir! Rich
    Rich, It was not until I made this sketch that I felt some good control with graphite pencils. It was a cold night but I was getting acclimated to winter by the first week of January. Thank you,Rich. Frank :)
    Beautiful work, Frank!!!
    Robert, This graphite sketch allowed me to turn a corner and I began gaining confidence. Thank you Robert. Frank :)

    Cloudy Nights LLC
    Cloudy Nights Sponsor: Astronomics