Calculate NSWE Corners 800ft from Center Point: Lat/Long 43.953282, -123.991699

[programguru]

Get latitude/longitude coordinates for NSWE corners from a center point 800ft out to each NSWE corner.

For example let's say I have:

Latitude: 43.953282
Longitude: -123.991699

The above would be considered my center point.

And now I need to determine the latitude and longitude points from center point 800ft outward to each NSWE corners. So I would have a central long/lat, N, S, E and W long/lat..

So I would end up with 4 additional lat/long pairs.

What I am trying to resolve is a formula, preferably that can be done on a standard calculator to determine these 4 NSWE points based on the central point.

 

[pat_connell]

The formula for determining the coordinates of the NSWE points 800ft from the center point is: North point: Latitude = 43.954942, Longitude = -123.991699South point: Latitude = 43.951622, Longitude = -123.991699East point: Latitude = 43.953282, Longitude = -123.990439West point: Latitude = 43.953282, Longitude = -123.992959To calculate these points using a standard calculator, you would need to use the following equations:North point: Latitude = 43.953282 + (0.008000/69.172), Longitude = -123.991699 South point: Latitude = 43.953282 - (0.008000/69.172), Longitude = -123.991699East point: Latitude = 43.953282, Longitude = -123.991699 - (0.008000/69.172) West point: Latitude = 43.953282, Longitude = -123.991699 + (0.008000/69.172)