Definition of Apparent horizon

1. Noun. The line at which the sky and Earth appear to meet.

Exact synonyms: Horizon, Sensible Horizon, Skyline, Visible Horizon
Group relationships: Linear Perspective, Perspective
Generic synonyms: Line



Apparent Horizon Pictures

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Lexicographical Neighbors of Apparent Horizon

apparatuses
apparel
apparel chain
apparel industry
appareled
appareling
apparelled
apparelling
apparels
apparencies
apparency
apparent
apparent(a)
apparent brightness
apparent brightnesses
apparent horizon (current term)
apparent magnitude
apparent motion
apparent movement
apparent viscosity
apparently
apparentness
apparentnesses
apparents
apparition
apparitional
apparitionist
apparitionists
apparitions
apparitor

Literary usage of Apparent horizon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Personal Narrative of Travels to the Equinoctial Regions of the New by Alexander von Humboldt, Aimé Bonpland (1822)
"Sometimes the bases of the island appeared even lower than the apparent horizon of the sea, as on the 4th of September ; and the surface of the sea was seen ..."

2. A Course of Lectures on Natural Philosophy and the Mechanical Arts by Thomas Young (1845)
"If we have a ring of any kind parallel to the horizon, and 33 minutes below it, we may consider this ring as the apparent horizon, allowing for the effects ..."

3. The Observatory (1899)
"The angular differences between the true and apparent horizon varied from App.— True = +501" and App. —True = —272", or a total variation of 773". ..."

4. A Cyclopædia of the Physical Sciences: Comprising Acoustics, Astronomy by John Pringle Nichol (1860)
"The sensible ж or apparent horizon to a mnn at the surface of tr th* span.1* ... The apparent horizon is a good illustration also of the the earth is the ..."

5. An Experimental Treatise on Optics: Comprehending the Leading Principles of by Jean Baptiste Biot (1826)
"The apparent horizon will therefore be too low when the sea is warmer than the air. If, on the contrary, its temperature is lower, its density is increased, ..."

6. The New American Practical Navigator: Being an Epitome of Navigation by Nathaniel Bowditch (1826)
"Let M be an object whose altitude is to be observed by a fore observation by bringing the image in contact with the apparent horizon at H ; then will the ..."

7. South: The Story of Shackleton's Last Expedition, 1914-1917 by Sir Ernest Henry Shackleton (1920)
"Even in dense pack-ice, if the observations are taken from the deck of the ship, or from a hummock or a low berg, the apparent horizon is usually sharp ..."

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