Cosmic Background Imager

Cosmic Background Imager
The CBI Telescope
LocationChile
Coordinates23°2′S 67°46′W / 23.033°S 67.767°W / -23.033; -67.767
Cosmic Background Imager is located in Chile
Cosmic Background Imager
Location within Chile
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CMB as measured by the CBI experiment

The Cosmic Background Imager (or CBI) was a 13-element astronomical interferometer perched at an elevation of 5,080 metres (16,700 feet) at Llano de Chajnantor Observatory in the Chilean Andes. It started operations in 1999 to study the cosmic microwave background (CMB) radiation and ran until 2008.

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