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438.34 Miles

November 23 2005 at 10:48 PM

Alan Ritter  (Login jaritter)

Response to Is This Picture of Denali (227 Miles Away) the Furtherest Photo From The Ground?


Ok, that's not a "real" number...but here is the setup:

Assume the earth is a perfect sphere (it isn't) 8,000 miles in diameter (not exactly).

Assume that Mt. Everest is 6 miles tall (it's more like 5-1/2 miles).

For a 6-mile peak on an 8,000-mile sphere, the maximum distance over which to see another 6-mile peak would be 438 and a fraction miles.

(Apologies to those of you who think metric...I did this off the top of my head with AutoCAD and just used the more familiar units for those of us who grew up in the last millennium in the USA)

So, if K2 and Everest were about 400 miles apart, you could theoretically see one from the other.

Now, Denali is under 4 miles high, so scale all that back accordingly...if there were another 20,000' peak a few hundred miles away...

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