Talk:Planetary Size/summary

Calculation of the Horizon

The calculation is D ≈ √2Rh or Distance (km) about equal to Square root of (2 * radius (km)) * square root (height (m). The D column is square root (Radius (km) * 2). Calculate the horizon distance by multiplying the square root of the height(m). The values in the summary table are assuming a 2m tall person at "sea level" or mean radius of the planet.

size	Rmin	R avg	rMax	D min	D avg	D max
0	200	300	400	0.6	0.8	0.9
1	480	800	1120	1.0	1.3	1.5
2	1280	1600	1920	1.6	1.8	2.0
3	2080	2400	2720	2.0	2.2	2.3
4	2880	3200	3520	2.4	2.5	2.7
5	3680	4000	4320	2.7	2.8	2.9
6	4480	4800	5120	3.0	3.1	3.2
7	5280	5600	5920	3.2	3.3	3.4
8	6080	6400	6720	3.5	3.6	3.7
9	6880	7200	7520	3.7	3.8	3.9
10	7680	8000	8320	3.9	4.0	4.1
11	8480	8800	9120	4.1	4.2	4.3
12	9280	9600	9920	4.3	4.4	4.5
13	10080	10400	10720	4.5	4.6	4.6
14	10880	11200	11520	4.7	4.7	4.8
15	11680	12000	12320	4.8	4.9	5.0

- Tjoneslo (talk) 19:47, 17 August 2020 (EDT)