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.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…”

astronavigationdemystified.com/the-disappearing-lighthouse-distance-to-the-horizon/

Calculating the distance to an object on the horizon. ... Since the heights of
objects marked on modern navigational charts are usually given in metres, it
would ...

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 ...

dizzib.github.io/earth/curve-calc/

d0 = Target distance. miles. Calculate. d1 = Horizon distance.
3.872398907942196. miles. h1 = Target hidden height. 455.23355919295426.
feet. Horizon h0 h1 ...

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.

erikras.com/2008/03/25/distance-to-the-horizon/

Mar 25, 2008 ... Distance To Horizon By Observer Altitude (Metric Graph). If we go up to an
altitude ... In a chart, these numbers look like: Distance to Horizon By ...

members.home.nl/7seas/radcalc.htm

Horizon calculator - radar and visual. ... m, km, nmi, mi, ft, yd. Height h2. m, km,
nmi, mi, ft, yd. Radar Horizon. m, km, nmi, mi, ft, yd. Visual Horizon. m, km, nmi, mi
...