Why Mauna Kea?. Mauna Kea, Hawaii Mauna Kea 13,824 ft.

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Presentation transcript:

Why Mauna Kea?

Mauna Kea, Hawaii

Mauna Kea 13,824 ft

Astronomers observe through Atmospheric windows

KAO cabin pressure (2,600m) sea level Denver (1,690m) onset of hypoxemia (3,500m) Mount Graham (3,191m) Mauna Kea (4,215m) Llano do Hato (3,610m) highest living mammal (yak) “Death Zone” (5,500m) Reaching for the Stars Water Vapor

Location, location, location….

Location, Location, Location... Comfort Zone

The inversion layer

Adaptive Optics can be made to work... University of Hawaii/NSF Adaptive Optics System - Hokupa’a

V-band 0.6 arcsec Adaptive Optics at work Globular Cluster NGC6934 V (0.55um) band FWHM of 0.6” K (2.2um) band ~120 exposures totaling 23min FWHM of 0.09” Gemini Optical Image 2.2um (K) Hokupa’a ON

Light Pollution in the US Image from the National Oceanic and Atmospheric Administration

Earth at Night Image from the International Dark Sky Association

Mauna Kea at Night

The Competition …..

HST 8 meters 2.4 meters $440M $1.75M UKIRT GEMINI One advantage of being on the ground - collecting area & cost $2.00M

Atacama Desert, Chile

Atacama Desert, 18,000 ft Images from NASA’s Nomad Test Expedition

21 st Century Ground-Based Observatory -- 50m Class Telescope

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