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  1. en.wikipedia.org › wiki › HorizonHorizon - Wikipedia

    To compute the greatest distance D BL at which an observer B can see the top of an object L above the horizon, simply add the distances to the horizon from each of the two points: D BL = D B + D L. For example, for an observer B with a height of h B =1.70 m standing on the ground, the horizon is D B =4.65 km away.

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  3. www.scientificamerican.com › article › how-far-awayHow Far Away Is the Horizon? - Scientific American

    Jan 26, 2024 · Distance in kilometers = 3.58 x √ (height in meters) If you’ve made it this far, let’s crunch the numbers. If your eyes are 1.5 meters off the ground, then the horizon is 3.58 x √1.5 ...

  4. earthscience.stackexchange.com › questions › 7283horizon - How high must one be for the curvature of the earth ...

    From just 3 m above the surface, you can see the horizon 6.2 km apart. If you are 30 m high, then you can see up to 20 km far away. This is one of the reasons why the ancient cultures, at least since the sixth century BC, knew that the Earth was curved, not flat. They just needed good eyes. You can read first-hand Pliny (1st century) on the ...

  5. Images

    • Niki Pike Photography - Why a Straight Horizon is Important in Photography
    • sea, Horizon, Sky, Clouds, Nature Wallpapers HD / Desktop and Mobile ...
    • The more you can see the horizon… – David at the HALL of EINAR
    • You can see the horizon editorial photo. Image of horizon - 70202191

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  6. www.totally-cuckoo.com › distance_visible_to_the_horizonThe distance visible to the horizon from different heights

    This chart gives the distance to the horizon visible from different heights. The line of vision of a person of six feet in height for example would be 3.24 miles, whereas a pigeon flying at an altitude of 1 mile would command a view of 96.10 miles in every direction. If you were looking at a distant object of 44 feet in height, such as a flag ...

    Height (ft)
    Height (m)
    Distance (miles)
    Distance (km)
    1
    0.30
    1.31
    2.09
    2
    0.57
    1.87
    3.00
    3
    0.67
    2.29
    3.68
    5
    1.52
    2.96
    4.83

    See full list on totally-cuckoo.com

  7. www.almanac.com › what-can-you-see-horizon-and-howWhat Can You See on the Horizon? (And How Far Is It?)

    Sep 23, 2024 · Of course, if you’re on the top of a mountain, you could see hundreds of feet away. A small mountain that’s 1300 feet tall, you could see about 235 feet. For the math nerds (including yours truly), here is a distance-to-horizon calculator. Observing the Sky From the Horizon. Now, let’s get into observing the sky objects with a clear horizon.

  8. www.worldatlas.com › can-you-see-the-curvature-ofCan You See The Curvature Of The Earth From Atop Mount ...

    Feb 4, 2020 · On a clear day, it is possible to see such a distance, but 230 miles is not enough for the human eye to discern an expansive curvature like that of the Earth. It is, therefore, possible to see the horizon from the top of Mount Everest but not Earth's curvature. If we consider the effect of refraction, the horizon appears even further.

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  10. earthobservatory.nasa.gov › features › EdLuWatching the World Go By - NASA Earth Observatory

    Jul 2, 2003 · The horizon of the Earth is a little over 20 feet away from where you are standing. If you are standing on top of Denver, then about 15 feet to one side you can see San Francisco, and about 15 feet to the other side you can see Chicago. At this same scale, the Earth that you are standing on would be a sphere with a diameter of about 160 feet.