The cloudy sky on solstice night at home on June 20, 2017. THis was after a fierce outflow wind from a distant thunderstorm. After a clear day, clouds moved in thwarting plans for a solstice twilight panorama. This does document the light pollution at my site — too much, from sodium vapour farm and gas plant lights, as well as towns. Shot with the Nikon D750 and 12mm Rokinon in landscape orientation, in six segments at 60° spacings.
Evening twilight, with 2-day old Moon in sky, Feb 28, 1998, from Curaçao, Caribbean, 12° N latitude. Ecliptic is neraly vertical, prependicular to horizon.
Evening Twilight over Bow Lake, Banff National Park 28mm lens, Ektachrome 100 slide film exposure metered.
