Editing Large Binocular Telescope (section)

==Adaptive optics==
[[File:LBT 3.JPG|thumb|Interior looking down one of the primary mirrors]]
In the summer of 2010, the "First Light Adaptive Optics" (FLAO) – an [[adaptive optics]] system with a deformable [[secondary mirror]] rather than correcting atmospheric distortion further downstream in the optics – was inaugurated.<ref name="physorg.com">{{cite web|url=http://www.physorg.com/news195838118.html|title=Sharper than Hubble: Large Binocular Telescope achieves major breakthrough|work=Physorg.com |author=Max Planck Society |date=June 15, 2010}}</ref><ref name=lbtsharp/> Using one 8.4 m side, it surpassed Hubble sharpness (at certain light wavelengths), achieving a [[Strehl ratio]] of 60–80% rather than the 20–30% of older adaptive optic systems, or the 1% typically achieved without adaptive optics for telescopes of this size.<ref name=lbtsharp>{{Cite web|url=http://spie.org/x40969.xml?ArticleID=x40969|title=Sharper than Hubble: Large Binocular Telescope achieves major breakthrough|access-date=18 June 2010|publisher=SPIE |author=Max Planck Society |date=18 June 2010}}</ref><ref name=mpialbt>{{cite web|url=http://www.mpia.de/Public/menu_q2.php?Aktuelles/PR/2010/PR100615/PR_100615_en.htm|title=Max-Planck-Institut für Astronomie|work=mpia.de}}</ref> Adaptive optics at a telescope's secondary (M2) was previously tested at [[MMT Observatory]] by the Arcetri Observatory and University of Arizona team.<ref>{{Cite web |author=Close |first=Laird |title=Adaptive Optics at the MMT and First Science Results |url=http://exoplanet.as.arizona.edu/~lclose/talks/ins/ESO_MMTAO_3 |url-status=dead |archive-url=https://web.archive.org/web/20150902085726/http://exoplanet.as.arizona.edu/~lclose/talks/ins/ESO_MMTAO_3 |archive-date=2 September 2015 |access-date=24 June 2015 |collaboration=Center for Astronomical Adaptive Optics team}}</ref>