
Observatory & monument
Royal Observatory Greenwich
London, United Kingdom
Harrison's marine timekeepers H1–H4, the Shepherd Gate Clock, the Prime Meridian and the time ball.
Founded by Charles II in 1675 to solve the problem of longitude, the observatory became the origin of Greenwich Mean Time and, from 1884, of the world's prime meridian. It is now part of Royal Museums Greenwich.
- Type
- Observatory & monument
- Location
- London, United Kingdom
- Founded
- 1675
- Specialities
- Marine chronometry · Astronomical regulators · Longitude and navigation
- Official website
- www.rmg.co.uk/royal-observatory
Opening hours, admission and accessibility change; please check the official website before visiting.
Featured objects
From this collection in the Atlas catalogue
All 4 records →Instruments · 1615
Astrolabe by Christian d.ä. Mechanicus Trechsler, 1615
National Maritime Museum
Instruments · 1773
Astrolabe by Basim Muhammad Narrafi, 1773
National Maritime Museum
Instruments · 1912
Astrolabe by Jens Kusk-Jensen, 1912
National Maritime Museum
Instruments · 1945
Astrolabe by Olsson, Gillis, SHM, Sweden, 1945
National Maritime Museum




