Cosmic Anisotropy Telescope
Location(s)United Kingdom Edit this at Wikidata
Coordinates52°09′58″N 0°02′02″E / 52.166°N 0.034°E / 52.166; 0.034 Edit this at Wikidata
Telescope stylecosmic microwave background experiment
radio telescope Edit this on Wikidata
Cosmic Anisotropy Telescope is located in the United Kingdom
Cosmic Anisotropy Telescope
Location of Cosmic Anisotropy Telescope
  Related media on Commons

The Cosmic Anisotropy Telescope (CAT) was a three-element interferometer for cosmic microwave background radiation (CMB/R) observations at 13 to 17 GHz, based at the Mullard Radio Astronomy Observatory. In 1995, it was the first instrument to measure small-scale structure in the cosmic microwave background. When the more sensitive Very Small Array came online, the CAT telescope was decommissioned in a ceremonial bonfire.