Editing Mount Wilson Observatory (section)

=== CHARA array ===
{{main|CHARA array}}

The [[CHARA array|Center for High Angular Resolution Astronomy]] (CHARA), built and operated by [[Georgia State University]], is an interferometer formed from six 1 meter telescopes arranged along three axes with a maximum separation of 330 m. The light beams travel through vacuum pipes and are delayed and combined optically, requiring a building 100 meters long with movable mirrors on carts to keep the light in phase as the Earth rotates. CHARA began scientific use in 2002 and "routine operations" in early 2004. In the infrared, the integrated image can resolve down to 0.0005 arcseconds. Six telescopes are in regular use for scientific observations and as of late 2005 imaging results are routinely acquired. The array captured the first image of the surface of a [[main sequence star]] other than the Sun published in early 2007.<ref>[http://www.ns.umich.edu/htdocs/releases/story.php?id=5877 U-M astronomers capture the first image of surface features on a sun-like star], [[University of Michigan]], 2007-05-31</ref>