Closure of Great Equatorial Dome and Time for Navy Gallery

The Great Equatorial Dome and some galleries will be closed between 11:30am and 3.45pm on Tuesdays, Wednesdays and Thursdays until 24 August for daytime observation. Join the fun and see Venus in the daytime sky

Follow this trail to discover how we’ve used the stars to measure time, determine our location and explore fundamental questions about the universe.

Everyone can enjoy observing the stars with just the naked eye but over the past 300 years astronomers at Greenwich have used many instruments to look further into space.

Zenith sector telescope and mural circle
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The Only Way Is Up!

Transit instrument telescope at the Royal Observatory Greenwich
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This telescope at the Royal Observatory Greenwich became a crucial reference point for astronomers, navigators and cartographers alike.

Spectroscope
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Did you know if you looked through this you could see what the Universe is made of?

Herschel eyepiece
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Do you know which planet the owner of this eyepiece discovered?

Dolphin dial
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How can a dolphin tell the time to the nearest minute?