Modern Telescopes and Ancient Skies New Views of the Universe An IU Lifelong Learning Class Tuesdays, May 10, 17, 24 III. 30-meters and beyond.

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Modern Telescopes and Ancient Skies New Views of the Universe An IU Lifelong Learning Class Tuesdays, May 10, 17, 24 III. 30-meters and beyond

in 6-8 meter telescopes WIYN TECHNOLOGY

8-10 Meter Telescopes Today Keck Telescopes  Gemini North and South ESO’s Very Large Telescope Subaru Hobby-Eberly Telescope and SALT MMT Observatory Magellan Large Binocular Telescope

The Twin Keck Telescopes on Mauna Kea Two 10-meter telescopes “segmented” mirrors –36 hexagonal segments Keck I in 1993; Keck II in 1996

ESO’s VLT Cerro Paranal, Chile Four 8.2 meter telescopes –Antu (the Sun) –Kueyen (the Moon) –Melipel (the Southern Cross) –Yepun (Venus - as evening star)

Subaru on Mauna Kea Built by Japan 8.2-meter mirror supported on air superb images

Hobby-Eberly and SALT 9-meter effective aperture fixed altitude in West Texas and South Africa

6.5-meter Telescopes Magellan Telescopes Twin 6.5-m in Chile Borosilicate honeycomb mirrors MMT Observatory 6.5-m Telescope also borosilicate honeycomb located in southern Arizona

Large Binocular Telescope Twin 8.4-meter mirrors on a single mount in southern Arizona

Adaptive Optics – Correcting distortions caused by the Earth’s Atmosphere

How does it work???

UH-88”, Courtesy W.Brandner, 0.65” seeing 4’ 40” 5” >220 stars in 5”x5” Gemini N/Hokupa’a-QUIRC (U of H/NSF) The Power of Adaptive Optics

Gemini Observatory & U. Hawaii Pluto and Charon with Adaptive Optics on Gemini Images in the infrared Each frame is 4 arcsec across Pluto and Charon are separated by 0.9 arcsec FWHM of stars is 0.08 arcsec

From the ESO VLT An exoplanet orbits a brown dwarf “star” at a distance of about 55 AU (the star and planet are about 200 light years away)

New Telescopes to Answer New Questions  20 and 30-meter telescopes  8-meter survey telescope  James Webb Space Telescope  Virtual Observatory

Adaptive Optics will be a key component of 20 and 30 meter telescopes Bigger than a football field! Lasers will produce artificial stars in the sky to help focus starlight

 8.4-meters  Triple-fold optical design  3 billion pixel-camera  30,000 gigabytes each night LSST Large-aperture Synoptic Survey Telescope  Survey the sky each week  Real-time data analysis  3 billion sources + transients

Exploring the Dark Universe with LSST

Beyond 30-meters ESO’s Overwhelmingly Large Telescope

Connecting to Gemini Visiting with Peter Michaud at the Gemini North Control Room in Hilo, Hawaii

Kirkwood Observatory Viewing Night Sky Viewing

Final Thoughts

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