For this eclipse, totality lasts a generous 72 minutes. The third stage, totality, begins when the last bit of Moon slips into the umbra. An hour or so into partial eclipse, only a final bright sliver of Moon remains outside the umbra - and the rest of it shows an eerie reddish glow. In fact, if you're far from city lights, hundreds of additional stars start appearing in what earlier was a bright, moonlight-washed sky. You'll notice that a second, deeper night is falling around you - night within night. You'll soon notice that Earth's shadow has a curved edge - visible proof that the world we live on is round.Īs more of the Moon slides into the umbra, look around the sky. Few sights in astronomy are more eerie and impressive than watching this black-red shadow creeping, minute by minute, across the bright lunar landscape. The second stage, partial eclipse, starts when the Moon's edge reaches the umbra, or Earth's inner shadow. You should be able to detect penumbral shading on the lunar disk about a half hour before the partial eclipse begins and again for a half hour after the partial eclipse ends. Key events and times for December's total lunar eclipse. Not until the Moon's leading edge is about halfway across the penumbra does the first slight dimming become detectable to the eye. But this event is unobservable the shading in the outer part of the penumbra is extremely slight. It begins when the Moon first enters the penumbra, or pale outer fringe, of Earth's shadow. Total Eclipse of the Moon, December 20–21, 2010Ī total lunar eclipse has five distinct stages. An eclipsed Moon is always full, so if the eclipse happens in the middle of the night for your location the eclipsed Moon will be about as close as it can ever be to straight overhead. The Moon will be at the northernmost part of the ecliptic, north of Orion between the feet of Gemini and the horns of Taurus. In East Asia, Australia, and New Zealand, the eclipse is already in progress at sunset and moonrise on 21st local date. Observers in Europe, West Africa, and South America will see part of the eclipse before it's interrupted by moonset and sunrise on the morning of the 21st.
Unlike a solar eclipse, each stage of a lunar eclipse is visible to everyone on the Moon-facing side of Earth. The partial phases of the eclipse will last for a little more than an hour beforehand and afterward. Pacific Standard Time, as shown in the timetable below.
Earth's shadow will totally engulf the Moon from 2:41 to 3:53 a.m. Now the whole continent is in for another on Monday night and Tuesday morning, December 20-21. Europe, Australia, and East Asia can only observe some of it due to the Moon setting or rising. (16) On 9 March 1497 he observed the Moon eclipse the star Aldebaran.North and Central America see the entire eclipse from start to finish. (15) We also viewed the eclipse through the thickness of a CD, which worked quite well. (14) Nevertheless, it is surprising to learn about the complete eclipse of the government sponsored agricultural research institution in this whole episode. (13) Some experts believe the roomy crossover model line could eventually eclipse the traditional sedan. (12) A lunar eclipse is visible from everywhere on the dark side of the Earth. (11) Two weeks ago South Africans saw a partial solar eclipse. (10) There is the already encountered line of analysis that the eclipse of Soviet military power was not an accomplishment of the West, but rather an outcome self-inflicted by Soviet and Russian economic failure. (9) Females and males in eclipse plumage may look superficially similar to Mallards. (8) Now that the highly specialised Honda Insight hybrid is no longer officially on sale in the UK, we know of no other car likely to eclipse the petrol C1's economy in a typical driving environment. (7) If the film gets made, that will definitely eclipse the book, because most people are more interested in movies. (6) The producer decided to show the mountain goats going to sleep when the eclipse happened. (5) Canada also witnesses the entire eclipse as does Central and South America. (4) Now the view of a transit simply shows the planet slowly moving across, appearing to eclipse the Sun. (3) When the Moon is fully immersed in the umbra a total lunar eclipse occurs. (2) The rise of Vancouver as a power centre coincided with the eclipse of Winnipeg, which by 1996 retained only one headquarters.
(1) At this time of the year individuals have completed breeding and begin to molt into their brown eclipse plumage, and they are easy to accurately age as adult breeding males.
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