Unlabeled

Distance to the horizon by height above the sea

Standing on a beach with your eyes 1.7 m up, the horizon is only 4.7 km away; from 1,000 m it is 113 km.

What does this axis measure?
What does this axis measure?
Distance to the horizon by height above the sea: 26 points, a line chart.
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Distance to horizon (km)
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Height above the sea (m)
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The data: 26 points
Height above the sea (m)Distance to horizon (km)
00
4022.6
8031.9
12039.1
16045.2
20050.5
24055.3
28059.7
32063.9
36067.7
40071.4
44074.9
48078.2
52081.4
56084.5
60087.4
64090.3
68093.1
72095.8
76098.4
800101
840103.5
880105.9
920108.3
960110.6
1000112.9
Source
Computed: d = √(2Rh + h²) with the GRS80 mean radius of the Earth (Moritz 2000, Journal of Geodesy 74)
Licence
Original computation by Unlabeled; nothing copied from the source
Read
2026-09-27
Drawn
26 points as the puzzle showed them · line
  • Ran in puzzle #17 on October 13, 2026. Play it