noun
or zenith angle
: the angular distance of a celestial object from the zenith measured by the arc of a vertical circle intercepted between the object and the zenith : the complement of the altitude
noun
or zenith angle
: the angular distance of a celestial object from the zenith measured by the arc of a vertical circle intercepted between the object and the zenith : the complement of the altitude
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012