Ember (planet)

A planet, colonised by humans, came to be controlled by the Sardick family in the 44th century.

Astronomical data
The planet was characterised by the cloud belt which covered the planet. These clouds were made of ice crystals with tiny electrical charges. The sky fish evolved to fly through these clouds, but they could only live outside them for a longer while.(TV: A Christmas Carol)

Culture
The human colonists of the planet had a society reminiscent of Victorian era Britain. They used Gideons as a currency and had a president, though real power was held by the Sardick family. They originally called Christmas "The Crystal Feast", but it was later just called Christmas. There was no lottery. (TV: A Christmas Carol)

History
The Eleventh Doctor visited the planet when a ship containing his companions, Amy Pond and Rory Williams, began to plummet through its atmosphere. The Doctor visited Sardicktown and convinced Kazran Sardick to allow the ship to land. (TV: A Christmas Carol)

Behind the scenes

 * It is worth noting that although the name does is not mentioned onscreen in A Christmas Carol, it arises in the non-DWU video game Worlds in Time, during which the planet is attacked by clockwork robots. However, it was mentioned by name in the The Brilliant Book 2012.