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Modern Telescopes and Ancient Skies

Modern Telescopes and Ancient Skies. New Views of the Universe. III. 30-meters and beyond. An IU Lifelong Learning Class Tuesdays, May 10, 17, 24. in 6-8 meter telescopes. WIYN TECHNOLOGY. 8-10 Meter Telescopes Today. Keck Telescopes Gemini North and South ESO’s Very Large Telescope

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Modern Telescopes and Ancient Skies

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

  2. in 6-8 meter telescopes WIYN TECHNOLOGY

  3. 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

  4. The Twin Keck Telescopeson Mauna Kea • Two 10-meter telescopes • “segmented” mirrors • 36 hexagonal segments • Keck I in 1993; Keck II in 1996

  5. ESO’s VLTCerro Paranal, Chile Four 8.2 meter telescopes • Antu (the Sun) • Kueyen (the Moon) • Melipel (the Southern Cross) • Yepun (Venus - as evening star)

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

  7. Hobby-Eberlyand SALT • 9-meter effective aperture • fixed altitude • in West Texas and South Africa

  8. 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

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

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

  11. How does it work???

  12. 5” 40” 4’ >220 stars in 5”x5” UH-88”, Courtesy W.Brandner, 0.65” seeing The Power of Adaptive Optics Gemini N/Hokupa’a-QUIRC (U of H/NSF)

  13. 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 Pluto and Charon with Adaptive Optics on Gemini Gemini Observatory & U. Hawaii

  14. 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)

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

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

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

  18. Exploring the Dark Universewith LSST

  19. Beyond 30-meters ESO’s Overwhelmingly Large Telescope

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

  21. Kirkwood Observatory Viewing Night Sky Viewing

  22. Final Thoughts

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