# Symbols:Greek/Zeta/Zenith Distance

## Zenith Distance

$\zeta$

Let $X$ be the position of a star (or other celestial body) on the celestial sphere.

The zenith distance of $X$ is defined as the angle subtended by the the arc of the vertical circle through $X$ between $X$ and the zenith.

The $\LaTeX$ code for $\zeta$ is \zeta .

## Also denoted by

The zenith distance is also seen denoted by $z$.