Editing Large Binocular Telescope (section)

{{Short description|Telescope for optical astronomy}}
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{{Infobox telescope}}
The '''Large Binocular Telescope''' ('''LBT''') is an optical telescope for astronomy located on {{convert|10700|ft|m|adj=on}} [[Mount Graham]], in the [[Pinaleno Mountains]] of southeastern [[Arizona]], United States. It is a part of the [[Mount Graham International Observatory]].

When using both 8.4&nbsp;m (330&nbsp;inch) wide mirrors, with centres 14.4 m apart, the LBT has the same light-gathering ability as an 11.8&nbsp;m (464&nbsp;inch) wide single circular telescope and the resolution of a 22.8&nbsp;m (897&nbsp;inch) wide one.<ref name="BBC">{{cite news |url=http://news.bbc.co.uk/1/hi/sci/tech/7282385.stm |title=Giant telescope opens both eyes |access-date=2008-03-06 |work=BBC News | date=2008-03-06}}</ref>

The LBT mirrors individually are the joint second-[[List of largest optical reflecting telescopes|largest optical telescope]] in continental North America, next to the [[Hobby–Eberly Telescope]] in [[McDonald Observatory|West Texas]]. It has the largest monolithic, or {{nowrap|non-[[segmented mirror|segmented]], mirror}} in an optical telescope.

[[Strehl ratios]] of 60–90% in the [[infrared]] [[H band (infrared)|H band]] and 95% in the [[infrared]] [[M band (infrared)|M band]] have been achieved by the LBT.<ref name="physorg.com"/>