sensible horizon

American  

noun

Astronomy.

1. horizon2a

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sensible horizon British  

noun

1. See horizon

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sensible horizon Scientific  

/ sĕn′sə-bəl /

1. The plane of an observer's position lying at a right angle to the line formed by the observer's zenith and nadir. The plane of the sensible horizon is parallel to the plane of the observer's celestial horizon but is tangential to the Earth's surface rather than passing through the Earth's center. Both the celestial and sensible horizons change with the observer's position.

2. Compare celestial horizon

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Etymology

Origin of sensible horizon

First recorded in 1635–45