Brief Description
Upper half of this image has paralleled the change of sun from left to right with interval of 3 minutes on the basis of diurnal motion for 25 minutes across the maximum totality observed on Aug 21, 2017 at Oregon, USA.
And lower part indicates the whole-sky image during the totality with Cartesian-converted span of 0° to 80° in vertical and about 300° in horizontal around south direction.
The eclipsed sun can be seen in southeast sky and the Venus is at upper right hand side of the sun seen as a light spot.
You can recognize a vast reversed triangle shadow stretched under the sun.
It's the lunar shadow cone fallen on ground. During the totality, I could observe that the lower surrounding skies were bright like colors of the sunset.
Photography Condition
Date & Time...Progress: Aug 21 2017, from 10:06:40 to 10:31:00 PDT(-0700), 8shots with 1/4000sec. exposed (ISO400, partial eclipse),
Composed 2 shots of 1/125sec. exposed (ISO800, total eclipse)
Shadow cone: Aug 21 2017, 10:19:16, 1/2sec. exposed, converted to cartesian coordinates
Optical... Progress: BORG 60ED with a correction lens (f=378mm, F6.3)
Auto-guided with EYEBELL CD-1 portable Equatorial
Shadow cone: SIGMA 4.5mm EX Circular DC (stop: F2.8), Fixed on tripod
Digital Camera... Progress: Nikon D810A (Recorded in 14bit CCD-RAW)
Shadow cone: Nikon D50 (Remodeled, ISO200, recorded in 12bit CCD-RAW)
Location... Salem, Oregon, USA