What a glorious morning!
Seven - 13mm, horizontal exposures, starting pointing nearly downward, near my feet, then each shot pointing progressively upward (still horizontal) with roughly 1/3rd to 1/4th overlap, to capture the visual magnitude of the scene. The raw images were converted in Adobe Camera Raw to Adobe's "Adaptive Profile" with the sharpening turned off (always) then "Merge to Panorama" was chosen to create a single raw panorama file (DNG). It was straightened, re-cropped, tonal and color corrected, and fine tuned mostly in Camera Raw. Clean up, ultra fine corrections and fine tuning was done in Photoshop.