February 9, 2009
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![Title:Lunar Eclipse March 3, 2008 Description:Lunar Eclipse<br /> <br />Lunar eclipses occurs whenever the Moon passes through some portion of the Earth's shadow. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, there is always a full moon the night of a lunar eclipse. The type and length of an eclipse depend upon the Moon's location relative to its orbital nodes.<br /><br />The last lunar eclipse was total, and occurred on February 21, 2008. The next eclipse--a partial one--occurs on August 16, 2008. The next total lunar eclipse occurs on December 21, 2010.<br /><br />Types of lunar eclipses<br />The shadow of the Earth can be divided into two distinctive parts: the umbra and penumbra. Within the umbra, there is no direct solar radiation. However, as a result of the Sun's large angular size, solar illumination is only partially blocked in the outer portion of the Earth's shadow, which is given the name penumbra.<br /><br />A penumbral eclipse occurs when the Moon passes through the Earth's penumbra. The penumbra does not cause any noticeable darkening of the Moon's surface, though some may argue it turns a little yellow. A special type of penumbral eclipse is a total penumbral eclipse, during which the Moon lies exclusively within the Earth's penumbra. Total penumbral eclipses are rare, and when these occur, that portion of the Moon which is closest to the umbra can appear somewhat darker than the rest of the Moon.<br /><br />A partial lunar eclipse occurs when only a portion of the Moon enters the umbra. When the Moon travels completely into the Earth's umbra, one observes a total lunar eclipse. The Moon's speed through the shadow is about one kilometer per second (2,300 mph), and totality may last up to nearly 107 minutes. Nevertheless, the total time between the Moon's first and last contact with the shadow is much longer, and could last up to 3.8 hours.[1] The relative distance of the Moon from the Earth at the time of an eclipse can affect the eclipse's duration. In particular, when the Moon is near its apogee, the farthest point from the Earth in its orbit, its orbital speed is the slowest. The diameter of the umbra does not decrease much with distance. Thus, a totally-eclipsed Moon occurring near apogee will lengthen the duration of totality.<br /><br />A selenelion or selenehelion occurs when both the Sun and the eclipsed Moon can be observed at the same time. This can only happen just before sunset or just after sunrise, and both bodies will appear just above the horizon at nearly opposite points in the sky. This arrangement has led to the phenomenon being referred to as a horizontal eclipse. It happens during every lunar eclipse at all those places on the Earth where it is sunrise or sunset at the time. Indeed, the reddened light that reaches the Moon comes from all the simultaneous sunrises and sunsets on the Earth. Although the Moon is in the Earth's geometrical shadow, the Sun and the eclipsed Moon can appear in the sky at the same time because the refraction of light through the Earth's atmosphere causes objects near the horizon to appear higher in the sky than their true geometric position.[2]<br /><br />The Moon does not completely disappear as it passes through the umbra because of the refraction of sunlight by the Earth's atmosphere into the shadow cone; if the Earth had no atmosphere, the Moon would be completely dark during an eclipse. The red colouring arises because sunlight reaching the Moon must pass through a long and dense layer of the Earth's atmosphere, where it is scattered. Shorter wavelengths are more likely to be scattered by the small particles, and so by the time the light has passed through the atmosphere, the longer wavelengths dominate. This resulting light we perceive as red. This is the same effect that causes sunsets and sunrises to turn the sky a reddish colour; an alternative way of considering the problem is to realise that, as viewed from the Moon, the Sun would appear to be setting (or rising) behind the Earth.](http://i.ytimg.com/vi/Cj-KwNXeUZQ/2.jpg)
MCOT Public Company Limited.2008 (MCOT - English News By Thai News Agency)
BEIJING, Feb. 9 (Xinhua) -- China's traditional Lantern Festival will witness the biggest and roundest moon for the past 52 festivals Monday night. However it will appear darker for a few hours because of a penumbral lunar eclipse.
Sunday, February 8, 2009 (Deccan Herald)
Former prime minister Atal Behari Vajpayee was in a serious condition on Saturday, four days after he was hospitalised for a lower respiratory tract infection, agencies report from New Delhi.
What's up in February (The York Weekly)
Winter is already half over, as Ground Hog Day marks its halfway point. The days are getting noticeably longer, but there is still plenty of cold weather ahead and the nights are still longer than the days until spring starts late next month.
Lunar Eclipse today at 9 February 2009 - Ub News First lunar eclipse occurs this year on February 9. It is called Chandra Grahan also. The solar eclipse was on 26 January 2009 and within 15 days the ...
Astronomers expect the deepest penumbral eclipse on Feb 9 - Manila Bulletin The penumbral lunar eclipse this February 9 will be visible not just in the Philippines but also in Alaska, Australia, East Asia, Hawaii, New Zealand, ...
Daily Skywatch: February 6, 2009 - Beliefnet.com We are in the window of the effects of the upcoming Lunar Eclipse at the Full Moon on Monday, February 9, and over the next few days the lunar influence ...
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