Astronomy Picture of the Day

Large Binocular Telescope

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Large Binocular Telescope


With moonlight on the horizon, a starry sky
and the northern Milky Way
provide the background for
dramatic view
of the
World at Night.

The imposing structure in the foreground houses the
Large Binocular Telescope
(LBT), on Mount Graham, Arizona.

the two 8.4 meter diameter mirrors of the LBT really are
side-by-side on a common mount, an
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.

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