horizontal parallax

1. 1.

   the maximum parallax observed when the celestial body is at the horizon

   Broadergeocentric parallax

Questions about horizontal parallax

What does horizontal parallax mean?

horizontal parallax means "the maximum parallax observed when the celestial body is at the horizon".

Is horizontal parallax a common word?

horizontal parallax is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.