Dr Robin Catchpole, senior astronomer at the Royal Observatory Greenwich, said the red coloration was a brilliant effect.

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Marek Kukula, Public Astronomer at the Royal Observatory Greenwich, said that beyond that, the planet's very existence makes a tantalising suggestion.

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The weather girls still occasionally refer to the Royal Observatory and Territory.

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Delegates will also have a guided tour of the Royal Observatory.

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In 1675, the foundation stone of the Royal Observatory was laid at Greenwich in south London by order of King Charles II, to improve knowledge of the positions of stars and thus aid navigation.

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But in constructing the first atmospheric model that has the orbital dynamics of a star-planet-moon system fully included, astronomers Duncan Forgan, at the Royal Observatory in Edinburgh, and David Kipping, at the Harvard Smithsonian Center for Astrophysics in Cambridge, turn that idea on its head.

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The Queen's House (by Inigo Jones) was the first Palladian building in England and the park contains the Old Royal Observatory, the work of Christopher Wren and the scientist Robert Hooke.

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The UK has one other such station as the Royal Greenwich Observatory in East Sussex.

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Jonathan Betts, the Curator of Horology at the Old Royal Observatory, agrees.

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