What does apparent horizon mean?

Definitions for apparent horizon
ap·par·ent hori·zon

Here are all the possible meanings and translations of the word apparent horizon.

Princeton's WordNet

  1. horizon, apparent horizon, visible horizon, sensible horizon, skyline(noun)

    the line at which the sky and Earth appear to meet

Freebase

  1. Apparent horizon

    In general relativity, an apparent horizon is a surface that is the boundary between light rays that are directed outwards and moving outwards, and those directed outwards but moving inwards. Apparent horizons are not invariant properties of a spacetime. They are observer-dependent, and in particular they are distinct from absolute horizons. See, however, the articles on ergosphere, Cauchy horizon, the Reissner-Nordström solution, photon sphere, Killing horizon and naked singularity; the notion of a horizon in general relativity is subtle, and depends on fine distinctions.

Dictionary of Military and Associated Terms

  1. apparent horizon

    The visible line of demarcation between land/sea and sky.

Dictionary of Nautical Terms

  1. apparent horizon

    See HORIZON.

How to pronounce apparent horizon?

  1. Alex
    US English
    Daniel
    British
    Karen
    Australian
    Veena
    Indian

How to say apparent horizon in sign language?

Numerology

  1. Chaldean Numerology

    The numerical value of apparent horizon in Chaldean Numerology is: 5

  2. Pythagorean Numerology

    The numerical value of apparent horizon in Pythagorean Numerology is: 7

Images & Illustrations of apparent horizon

  1. apparent horizon

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