Saturday, December 18, 2010
How To Help Baby To Remove Phlegm
and December solstice
The last lunar eclipse 2010 d will be well positioned to observers in the Americas. The eclipse will occur 4 days before perigee.
Why the Moon looks red? During a total lunar eclipse, the Earth keeps sunlight from reaching the Moon. Astronauts on the moon to Earth would completely eclipse the Sun (would observe a 'ring' red around the Earth to see all the rising and setting of the sun that would be occurring simultaneously in the world) While the Moon remains completely within the shadow the umbra of the Earth, indirectly, the sunlight still manages to illuminate the Moon. However, this sunlight must first pass through the Earth's atmosphere filters out most blue light. What remains is a light red-orange color and is much weaker than the white light of the sun the earth's atmosphere also bends or refracts some of this light and a very small fraction reaches the moon and the lights.
If Earth had no atmosphere, then the Moon would be completely dark during a total eclipse. The exact appearance depends on how many clouds are present in the Earth's atmosphere. Total eclipses tend to be very dark after major volcanic eruptions since these events send large amount of ash into the atmosphere. During the total lunar eclipse in December 1992, dust from Mount Pinatubo caused the Moon was nearly invisible.
The total lunar eclipse of December 21, 2010, reaches its maximum at 8:16:57 UT, start taking a reddish hue when the total phase begins at 7:40:47 UT, the phase total end at 8:53:08 UT
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| Dar click to enlarge |
entire event will be visible in North America and much of Latin South. Only the coast The Brazilian will miss the total eclipse stages because they occur after the moon is hidden. Likewise, Europe and Africa will experience the start of the Moon while the eclipse is in progress. Only northern Scandinavia you can see all the events in Europe. For observers in East Asia and the moon will eclipse the horizon. Any stage of the eclipse will be visible in the southern and eastern Africa, the Middle East or South Asia.
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| visibility zones according to NASA (dar click to enlarge) |
These are the areas of visibility in stages, if you can not see your city on the map according to the stage, then this stage will not be visible.
During the high point of the eclipse, most of the East of Brazil will miss that stage. Cities such as Montevideo will have only a few minutes to see the maximum phase before hiding the moon, cities in Argentina to the maximum phase will occur with the Moon near the western horizon, observe achieved this stage but will miss the rest. Luna in Spain be hidden before the start of the peak stage, only able to observe the initial stages. Some areas of Portugal will get to observe the highest stage a few minutes. Only North American and Scandinavian countries will see from beginning to end the eclipse. Although as already mentioned, the best time, the maximum phase, the will see almost everyone in the Americas with the exception of the east coast of Brazil. The cities in central and western Brazil will see the eclipse at its peak phase.
SOLSTICE DECEMBER 21 December, will also be given the solstice (winter solstice for the northern hemisphere solstice summer for the southern hemisphere) Total eclipses of the moon during the Northern Hemisphere winter are common. There have been three in the last 10 years. However, a total lunar eclipse coincides with the solstice day is rare. According to data from NASA, the last time the two events coincided was in 1638, also by 21 December.
So be ready telescopes, cameras and binoculars. Or the naked eye, will be a great event to watch. Good weather at all!
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