PDA

View Full Version : How to See Airglow, the Green Sheen of Night



Fraser
2014-Jun-13, 02:30 PM
Emerald green, fainter than the zodiacal light and visible on dark nights everywhere on Earth, airglow pervades the night sky from equator to pole. Airglow*turns up in our time exposure photographs of the night sky as ghostly ripples of aurora-like light about 10-15 degrees above the horizon.*Its similarity to the aurora is no coincidence. Both*form […]

More... (http://www.universetoday.com/112237/how-to-see-airglow-the-green-sheen-of-night/)