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

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 […]

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