This picture wasn’t last night’s eclipse, but what an awesome illustration of what we saw yesterday evening.
Our bright/dark experiment:
Before the eclipse started, I told my kids to look around and see how bright the full moon made the yard — notice what shadows you can see, and what’s the dimmest thing you can still make out. Then I had them repeat that when we were in full eclipse. Despite the fact that our eyes had better adapted to the dark, we could still clearly see the before/after difference. We also noticed that the orange-y color on the shadowed portion of the moon was visible before full eclipse, but it was much harder to see because of the bright contrast with the illuminated side of the moon.
Originally shared by Astronomy Picture of the Day (APoD)
Total Lunar Eclipse over Waterton Lake
Image Credit & Copyright: Yuichi Takasaka / TWAN / www.blue-moon.ca
Recorded in 2014 April, this total lunar eclipse sequence looks south down icy Waterton Lake from the Waterton Lakes National Park in Alberta, Canada, planet Earth. The most distant horizon includes peaks in Glacier National Park, USA. An exposure every 10 minutes captured the Moon’s position and eclipse phase, as it arced, left to right, above the rugged skyline and Waterton town lights. In fact, the sequence effectively measures the roughly 80 minute duration of the total phase of the eclipse. Around 270 BC, the Greek astronomer Aristarchus also measured the duration of lunar eclipses – though probably without the benefit of digital clocks and cameras. Still, using geometry, he devised a simple and impressively accurate way to calculate the Moon’s distance, in terms of the radius of planet Earth, from the eclipse duration. This modern eclipse sequence also tracks the successive positions of Mars, above and right of the Moon, bright star Spica next to the reddened lunar disk, and Saturn to the left and below.