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[aprssig] A math problem concerning Lat and Long

scott at opentrac.org scott at opentrac.org
Wed Oct 6 01:34:48 UTC 2004


This site has the formulas you're looking for, under 'lat/lon given radial
and distance':

http://williams.best.vwh.net/avform.htm

Keep in mind this assumes a spherical Earth.  Close enough for most
purposes.

Scott
N1VG

-----Original Message-----
From: aprssig-bounces at lists.tapr.org
[mailto:aprssig-bounces at lists.tapr.org]On Behalf Of kb2scs at optonline.net
Sent: Tuesday, October 05, 2004 5:42 PM
To: aprssig at lists.tapr.org
Subject: [aprssig] A math problem concerning Lat and Long


Hi All
         Could someone please give me a formula to solve the
following problem.

Given a known Latitude and Longitude you move for example 8 stature
miles due west and then move 8 stature miles due north.
After moving this distance and direction what is your new Latitude
and Longitude?

Or put another way.

Draw a x and y axis on a pice of paper. The origin is
49.8167N and 73.1333W
what is the Latitude and Longitude of a point that is 8 miles due
west by 8 miles due north?

Let us hope we never witness the "Silence Of The Hams"
73 DE John  KB2SCS
       E-Mail:            kb2scs at arrl.net
       Web Page:     http://www.qsl.net/kb2scs

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