Astronomy

Venture into another dimension and discover all about astronomy and the study of celestial objects, such as stars, comets, planets and asteroids. Plus, how you can be captivated by the wonders of the universe at the Peter Harrison Planetarium at Royal Observatory Greenwich. 

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Handy tables of orbits, mass, rotation periods and tilts for the planets and their moons in the Solar System.

Lunar Eclipse and Occultation © Jathin Premjith, Astronomy Photographer of the Year Young Winner 2011

Find out what a lunar eclipse is and when the next total lunar eclipse in the UK will occur, as well as expert tips on how to see it from astronomers at the Royal Observatory Greenwich.

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

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With a telescope we can see billons of miles and travel effortlessly back billions of years in time.

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What is the Eta Aquariid meteor shower, when does it happen and how can I see it in 2020?

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Over Women's History Month we'll be sharing the stories of amazing women who've made essential contributions to our observatory. 

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Why was Greenwich chosen as the home of the Prime Meridian and Greenwich Mean Time, and what do those terms mean?

Lyrid Meteor Shower

What is it, when is it and where can I see the Lyrid meteor shower this year?

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The annual Lyrid meteor shower is underway and will be growing to its peak on Weds 22–Thurs 23 April.

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What can you see through binoculars or a small telescope of the Solar System?

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