sentence: Some examples are large public clocks, but others are instruments for use inside buildings.
sentences_before: An 'astronomical clock' is a clock with special mechanisms and dials to display astronomical information. It displays the relative positions of the sun, moon, zodiacal constellations, and sometimes major planets.
sentences_after: Astronomical watches are made by several manufacturers.
concept_name: example
headings: Astronomical clock
categories: Clocks Astronomy