en.wikipedia.org/wiki/Horizon

However, ignoring the effect of atmospheric refraction, distance to the horizon
from an observer close to the ...

www.ringbell.co.uk/info/hdist.htm

This is a rough guide to determine the distance of the horizon based on the
observer's height above mean sea level. The screen will work in Metric or
Imperial ...

www.table-references.info/earth-table-distances.php

This page contains the following tables: Distance to Horizon (height in meter and
distance in km). Distance to Horizon (height in feet and distance in statute miles).

www.boatsafe.com/nauticalknowhow/distance.htm

How could you calculate the distance to the horizon or the "distance off" if you ...
You're approaching a port that has a lighthouse that is shown on your chart to ...

blogs.discovermagazine.com/badastronomy/2009/01/15/how-far-away-is-the-horizon/

Jan 15, 2009 ... The horizon is a semi-mythical distance, used in poetry as a ...... globe, therefore
you're too dumb to speak correctly / figure out a chart / etc…”

www.totally-cuckoo.com/distance_visible_to_the_horizon.htm

Due to the Earth being round, its convexity limits the distance visible. This chart
gives the distance to the horizon visible from different heights. The line of vision ...

www.wikihow.com/Calculate-the-Distance-to-the-Horizon

How to Calculate the Distance to the Horizon. Have you ever watched the sun
disappear into the horizon and wondered, "How far is the horizon from where I'm
...

www.dublerfamily.com/Activity3.html

Where our line of sight hits the horizon is the distance from our boat to the
horizon. A small boat first coming into view is assumed to be at that distance.

www.math.washington.edu/~conroy/m120-general/horizon.pdf

the line from our eye to the horizon is tangent to a circle of radius R (representing
the earth) as shown: R ... distance along the surface of the earth to the horizon.

www.cactus2000.de/uk/unit/masshor.shtml

Jan 20, 2010 ... With this calculator you can estimate the distance to the horizon or to an object
above the horizon that you observe at the sea. The result is not ...