視し地ち平へい

noun

apparent horizon

Astronomical term for the visible horizon where the sky appears to meet the Earth's surface, as opposed to the true horizon.

• 視し地ち平へいは大たい気き差さの影えい響きょうで真しん地ち平へいよりわずかに高たかい位い置ちに見みえる。

  The apparent horizon appears slightly higher than the true horizon due to atmospheric refraction.