Large Binocular Telescope

With moonlight on the horizon, a starry sky and the northern Milky Way provide
the background for this dramatic view of the World at Night. The imposing structure
in the foreground houses the Large Binocular Telescope (LBT), on Mount Graham,
Arizona. Inside, the two 8.4 meter diameter mirrors of the LBT really are side-by-side on
a common mount, an arrangement mimicking the design of more modest optical equipment
usually carried around the neck. While not exactly portable, the benefits of the large
scale binocular configuration adopted include an increase in sensitivity over a single
mirror telescope and high resolution imaging for faint objects over a relatively wide
field of view. An international collaboration operates the LBT Observatory.