Table 15: Distance by vertical angle measured between
sea horizon and top of object beyond sea horizon
sea horizon and top of object beyond sea horizon
| Angle: | ° ' | |
| Height of object: | ||
| Height of eye: | ||
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| α | = | corrected vertical angle (degrees) | |
| H | = | height of object above sea level (feet) | |
| h | = | height of eye above sea level (feet) | |
| D | = | distance (nm) |