I requested to entry a inside tour of SUBARU Astronomical Observatory through the Web-site after a long time.(http://www.subarutelescope.org/) This tour is free but it held at day time so we cannot see the stars through the lens(anyway it has no lens to see)
We have to go there(top of the summit of Mauna Kea) by own way. So I went there by this little Ford, It was nervous driving.
It is the mainframe of telescope standing vertical.The black object of upper side is the camera of main focus.Our reflection telescope leads the light from there to outside of cylinder and sees stars.
Subaru has a camera at the main focus it was very rare of 8m class telescope at that time. It is taking photograph of stars using 10CCD of 800milion pixels each. It can get 100times wider field compare with Hubble Observatory, it is very famous about astronomical photos.
It is the part primary mirror was kept. It is 8.2m diameter, largest mirror in the world until quite recently. Now the biggest two are Binoculars Large Telescope(BLT, name like sandwich) in Arizona,8.3m diameter both. It is the most important part of telescope so it usually covered. It cost was $1billion, made in USA.
It was took down to downstairs and coated aluminum again last year.
It is a digital camera put at Casegren Focus.(we have small telescope of Casegren system) It has another focuses beside the mirror, but I forge their name.
These are the telescope which can see ordinary tour but little accident occurred so we could see more.(cont.)