You searched for: “astronomical clock”
A clock that, in addition to telling the time, was designed to show the positions of the sun, moon, and other celestial bodies.
This entry is located in the following unit: Science and Technology Words from the Ancient Past to the Present, Part 1 (page 1)
Word Entries at Word Info: “astronomical clock”
1. A precise pendulum clock with separate dials for seconds, minutes, and hours.
It was originally used by astronomers to calculate astronomical time.2. A clock indicating the movement of the sun, planets, and other astronomical data.