Celatone

Celatone's theme is one that has captured the attention of people of all ages and sectors of society. It is a topic that has been debated and discussed for years, and remains relevant today. Celatone is something that affects us all in some way, whether on a personal, professional or social level. In this article, we will explore different aspects related to Celatone and how it impacts our lives. From its origin and history to its involvement in today's society, Celatone is a topic that deserves to be analyzed in depth to better understand its importance and impact on our daily lives.

Navigational aid reliant on tracking Jupiter's moons in the sky

The celatone was a device invented by Galileo Galilei to observe Jupiter's moons with the purpose of finding longitude on Earth. It took the form of a piece of headgear with a telescope taking the place of an eyehole.

Modern versions

In 2013, Matthew Dockrey created a replica celatone, using notes from a version created by Samuel Parlour. From April 2014 to January 2015, Dockrey's celatone was on display in the Royal Observatory, Greenwich in east London.

See also

• Longitude prize
• Galilean moons

References

• Sobel, Dava (1995). Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. Penguin. ISBN 0-14-025879-5.

External links

• Video animation of a Celatone and its use in discovering the longitude for marine navigation
• Dockrey celatone
• "Apparatus to render a telescope manageable on shipboard"