Upper transit

Also found in: Encyclopedia.
Related to Upper transit: Lower transit
(Astron.) the passage of a heavenly body across that part of the meridian which is above the polar axis.

See also: Transit

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
In addition to the time of upper transit (when the Moon is highest in the sky), there is also the time of lower transit (Moon farthest below the horizon) and when the Moon is six hours east or west of the meridian.
For example, Gamma Lyrae's upper transit occurred at 1:16 a.m.
Full browser ?