# Symbols:Greek/Zeta/Zenith Distance

< Symbols:Greek | Zeta

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## 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`

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## Also denoted by

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

## Sources

- 2008: David Nelson:
*The Penguin Dictionary of Mathematics*(4th ed.) ... (previous) ... (next): Entry:**zenith distance (coaltitude)**