Aurora Norman Linton Image taken: Oct. 1, 2008 Location: Yellowknife, CA on lisand in Great Slave Lake. Details: They were dancing. Looked greeny-milky with naked eye. Green with camera exposure. Sony Cybershot dsc-h9. 30 sec exposure on tripod. 400 ASA equivalent. ©2013, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.