en.wikipedia.org/wiki/Horizon

Graphs of distances to the true horizon on Earth for a ... h in the term (2R + h), and the formula becomes-.

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.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.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.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 ...

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

distance along the surface of the earth to the horizon. The angle θ is ... To check our calculations, we can work out an “exact” formula and compare. The angle θ ...

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 metaphor ... So now we have an equation that tells us how far away the horizon is ...

www.phy6.org/stargaze/Shorizon.htm

Apr 1, 2014 ... Deriving the distance to the horizon; part of an educational resource on astronomy, physics and space.

en.wikibooks.org/wiki/Trigonometry/The_distance_and_dip_of_the_horizon

let the radius of the Earth be r, the distance to the horizon be d and the height of ... This formula may be inverted to find how high you must be to see to a given ...