Royal Observatory Greenwich, Royal Museums Greenwich

The Royal Observatory is the home of Greenwich Mean Time, the Prime Meridian of the World, London's only planetarium, the Harrison timekeepers and the UK's largest refracting telescope.

Stand astride two hemispheres at the home of Greenwich Mean Time and the Prime Meridian of the World. Travel the universe in London's only planetarium, see Harrison's world-changing timekeepers and the UK's largest refracting telescope, watch the Time Ball and touch a 4.5 billion year-old asteroid.

Entrance to the Astronomy Centre is FREE. Entrance charges apply to Flamsteed House and the Meridian Courtyard. You can save with a Combo Ticket, giving entry to the Royal Observatory and Cutty Sark on the same day.

The Royal Observatory and Planetarium are in Greenwich Park, at the top of a steep hill (walking time from Greenwich Station or Cutty Sark DLR to the Planetarium is usually approx 20-25 minutes).

Part of Royal Museums Greenwich. To find out how to get to our three sites, including the National Maritime Museum and the Queen's House, visit our website at http://www.rmg.co.uk/

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National Maritime Museum, Royal Museums Greenwich

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