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Q&A At what angle do you hold out your arm at 10 and 15 degrees?

The missing context in this quote is apparently that you then use a part of your hand after the arm is extended to guage 10° in the sky. Look where you got that quote from, and it probably mention...

posted 1y ago by Olin Lathrop‭

Answer
#1: Initial revision by user avatar Olin Lathrop‭ · 2021-11-06T15:20:51Z (about 1 year ago)
The missing context in this quote is apparently that you then use a part of your hand after the arm is extended to guage 10&deg; in the sky.  Look where you got that quote from, and it probably mentions the palm, 4 fingers together, or the like.

The point is, this gives you a rough guide how far the sun will appear to move in the sky in an hour.  As the quote mentions, ideally you want to measure out 15&deg;.