Blue Fringe Umbra | Glendon Howell

Photographer
Glendon Howell
Email
howellgl@mindspring.com
Location of photo
Gates County, NC
Date/Time of photo
2008-FEB20 9:46 PM EST
Equipment
Prime focus through Meade 8-inch f/6 Newtonian OTA on Losmandy G-11 mount. Camera was Canon Digital Rebel XTi. Camera was set to Program AE mode, -2 stops underexposure. Actual exposure was 2.5 seconds at ISO 100.
Description
Taken just prior to beginning of totality, the photo shows a blue fringe at the rim of the umbral shadow, indicicative of Danjon L = 4.0
Website
http://www.freewebs.com/howellgl/