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	- 1940.0 (dbd:second)
 
	- Atacama Cosmology Telescope on Cerro Toco, just north of the Llano de Chajnantor. (en)
 
	- 182160.0 (dbd:second)
 
	- View looking northeast across the Llano de Chajnantor and the first two ALMA antennas in late 2009, with Cerro Chajnantor rising above at right. (en)
 
	- The Indian Astronomical Observatory stands at an altitude of  on Mount Saraswati in Ladakh, India. (en)
 
	- Aerial view of part of the Mauna Kea Observatory, showing Subaru, Keck, and IRTF telescopes . (en)
 
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