The Magnificent Night Sky—How to Protect It – Dr. Wainscoat

The advent and spread of electrical lighting has made it ever harder to find the dark skies valued by professional and amateur astronomers, not to mention lovers of starry skies in general. Dr. Wainscoat tells the story about light pollution and astronomy, with special emphasis on light pollution’s effects on the world’s best astronomical observing site: Mauna Kea on the Big Island of Hawai’i. Dr. Wainscoast is an astronomer as well as an accomplished photographer. This talk was given at the Kahilu Theatre in Waimea-Kamuela, Hawaii, on April 5, 2012.

The W. M. Keck Observatory operates two 10-meter optical/infrared telescopes on the summit of Mauna Kea on the Big Island of Hawaii. The twin telescopes feature a suite of advanced instruments including imagers, multi-object spectrographs, high-resolution spectrographs, integral-field spectroscopy and a world-leading laser guide star adaptive optics system which cancels out much of the interference caused by Earth’s turbulent atmosphere. The Observatory is a private 501(c) 3 non-profit organization and a scientific partnership of the California Institute of Technology, the University of California and NASA.

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Tonight observers from NASA and CIT will use LRIS-ADC and DEIMOS. Sun set 06:02:00pm rise 06:10:00am
Comet Siding Spring and Mars in a never-before-seen close passage on 10/19/14 1.usa.gov/12swEQi pic.twitter.com/JRocfaMkoe
LRIS-ADC and DEIMOS are the instruments tonight. Observers are from UCLA and UCSC. Sun set 06:04:00pm rise 06:09:00am
Here on Keck 2 the 1st of our 2 primary fields has just risen above the horizon, so we are busily collecting photons from distant galaxies.
Howdy! This is @rhaegal on Keck 2 with grad student Intae, searching for the most distant galaxies with deep spectroscopy on DEIMOS.