en.wikipedia.org/wiki/Horizon

Using kilometres for d and R, and metres for h, and taking the radius of the Earth as 6371 km, the distance to ...

www.boatsafe.com/nauticalknowhow/distance.htm

How could you calculate the distance to the horizon or the "distance off" if you ... your height of eye is 9 feet above the surface of the water, the formula would be:.

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

Measure your "height of eye." Measure the length between the ground and your eyes in meters or feet.

www.dummies.com/education/math/geometry/how-to-determine-the-distance-to-the-horizon

You can use the following formula to figure out how far the horizon is from you ... standing on the shore, then you can also estimate the distance to the horizon by ...

aty.sdsu.edu/explain/atmos_refr/horizon.html

People often ask how far you can see, or how far it is to the apparent horizon. .... So the nice-looking formulae for calculating “the distance to the horizon” are ...

www.slate.com/blogs/bad_astronomy/2009/01/15/how_far_away_is_the_horizon.html

Jan 15, 2009 ... The horizon is a semi-mythical distance, used in poetry as a metaphor ... above the surface, R+h. This gives us the following algebraic formula: ...

rechneronline.de/sehwinkel/distance-horizon.php

Calculator for the distance from the horizon from a viewpoint. ... Formulas: c = f * ( √a + √b ) The unit of f is 1000 * √m f = √2R R is the mean Earth radius in ...

www.phy6.org/stargaze/Shorizon.htm

Apr 1, 2014 ... Deriving the distance to the horizon; part of an educational resource on ... This equation lets one calculate D--in kilometers, if h and R are given ...

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

Calculating Distance To The Horizon. Pythagoras provides us with a method of solving this problem as shown below: Consider the following diagram:.