At 06:53 1/7/97 -0800, you wrote:
>
>
>"At the time (local) half way between local sunrise and local sunset,
>the Sun, if shining, will cast a shadow exactly (true) North-South."
>
>That's the sentence.
>
>Now, to avoid the FLAMES I received last time: No, I do not mention
>NOON and this has nothing at all to do with noon, anywhere. Yes, this
>works in the Southern Hemisphere, the shadow will fall to the South,
>however. Yes, this works in Alaska (when the sun is out). Yes, if you
>live in Death Valley or behind a hill, you won't be able to use this.
>And finally, no, it will not work on the Moon, and it will be difficult
>on/near the Earth's Equator.
>
>Example:
>
>local sunrise = 0700
>local sunset = 1720
>
>The sun will cast a shadow N-S at exactly: {(1720-0700)/2} + 0700 =
>1020/2 + 0700 =
>510 + 0700 = 1210 local time!
>
>Just use the local weather forcaster's sunrise/sunset times and it's
>accurate for amateur antenna alignment for sure!
>
>73!
>
>Bill, N3RR
Bill,
I live in a location where the takeoff angle to horizon to the east is
virtually zero degrees, in other words, straight out. To the west the
horizon is blocked by tall mountains and the takeoff angle is probably 20
degrees. Will this make a difference to the sunrise and sunset times.?
Don't flatlanders have it easy!
C. Dean Norris, K7NO
e-mail to dnorris@k7no.com
Have you hugged your criminal defense attorney today?
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