Bay of Rainbows

Sketching For this sketch I used: White CPP sketching paper, 9”x 12”, Numbers 2H, B and 4B graphite pencils, a blending stump, plastic eraser and an eraser shield. After scanning, Brightness was slightly decreased (-3) and contrast increased (+3) using Microsoft Office Picture Manager. Telescope: 10 inch f/ 5.7 Dobsonian and 9mm eyepiece 161x Date: 6-14-2008 1:30 - 2:42 UT Temperature: 24° C (77° F) clear, breezy Seeing: Antoniadi IV Co-longitude: 34.9° Lunation: 10.26 days Illumination: 81.5 % Phase: 50.9° Observing Location: +41°37' +87° 47' Frank McCabe