Subaru Telescope

Subaru Telescope (すばる望遠鏡, Subaru Bōenkyō) is the 8.2-metre (320 in) telescope of the National Astronomical Observatory of Japan, located at the Mauna Kea Observatory on Hawaii. It is named after the open star cluster known in English as the Pleiades. It had the largest monolithic primary mirror in the world from its commissioning until the Large Binocular Telescope opened in 2005.

Subaru Telescope
The Subaru Telescope
Part ofMauna Kea Observatories
National Astronomical Observatory of Japan 
Location(s)Mauna Kea, Mauna Kea, Hawaii, US
Coordinates19°49′32″N 155°28′34″W
OrganizationNational Astronomical Observatory of Japan 
Observatory code T09 
Altitude4,139 m (13,579 ft)
WavelengthOptical/Infrared
BuiltCompleted 1998
Telescope styleoptical telescope
reflecting telescope
Ritchey–Chrétien telescope 
Diameter8.3 m (8.2 m usable)
Secondary diameter1330/1400/1265 mm
Angular resolution0.23″
Collecting area53 m2 (570 sq ft)
Focal lengthf/1.83 (15.000 m)
MountingAltitude/Azimuth
Enclosurecylindrical dome 
Websitewww.naoj.org
Location of Subaru Telescope
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