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ANYER, Indonesia - Indonesians were among the few worldwide to witness an eclipse of the sun Monday, but even there the view was hampered in most places by cloudy skies.
Dozens gathered in the western coastal town of Anyer as the moon passed across the sun's path at 4:40 p.m., covering 92 percent of the sun's diameter and leaving a white, flaming ring of fire that lasted about four minutes.
"I'm old, but I still think this is magical," said Roanna Makmur, 66, who drove several hours with eight friends to witness the sight, known as an annular eclipse, because it does not completely black out the sun.
"I can't help but feel the greatness of God," she said, as other onlookers cheered. "Anyone who passed up this opportunity, really missed out."
Annular eclipses, which are considered far less important to astronomers than total eclipses of the sun, occur about 66 times a century and can only be viewed by people in the narrow band along its path.
A relatively small number of people were in the best places to view Monday's eclipse, said Jay Pasachoff, professor of astronomy at Williams College in Williamstown, Massachusetts, and chair of the International Astronomical Union's Working Group on Eclipses.
Aside from several regions in Indonesia, the world's largest archipelago, only villagers on a tiny South Pacific island group known as the Cocos, administered by Australia, were to have been able to see the ring-shaped corona, he wrote in a statement.
A partial eclipse _ with coverage ranging from 1 percent to 84 percent of the sun's diameter _ was to be visible in the southern third of Africa, in southeastern India, and southeast Asia, as well as the western part of Australia.
The last total eclipse of the sun was Aug. 1, 2008, and was visible in Canada, across northern Greenland, the Arctic, central Russia, Mongolia and China.
The next total eclipse will be July 22, 2009, and will be visible in India, Nepal, Bangladesh, Bhutan, Myanmar, China and some Japanese islands.
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On the Net:
Path details: http://eclipse.gsfc.nasa.gov/OH/OHfigures/OH2009-Fig01.pdf
The first solar eclipse of 2009 occurs at the Moon's ascending node in western Capricornus. An annular eclipse will be visible from a wide track that traverses the Indian Ocean and western Indonesia. A partial eclipse will be seen within the much larger path of the Moon's penumbral shadow, which includes the southern third of Africa, Madagascar, Australia except Tasmania, southeast India, Southeast Asia and Indonesia. (Figure 1).
The annular path begins in the South Atlantic at 06:06 UT when the Moon's antumbral shadow meets Earth and forms a 363 kilometre wide corridor. Traveling eastward, the shadow quickly sweeps south of the African continent, missing it by approximately 900 kilometres. Slowly curving to the northeast the path crosses the southern Indian Ocean. Greatest eclipse[1] takes place at 07:58:39 UT when the eclipse magnitude[2] will reach 0.9282. At this instant, the annular duration is 7 minutes 54 seconds, the path width is 280 kilometres and the Sun is 73° above the flat horizon formed by the open ocean. The central track continues northeast where it finally encounters land in the form of the Cocos Islands and onward to southern Sumatra and western Java (Figure 2). At 09:40 UT, the central line duration is 6 minutes 18 seconds and the Sun's altitude at 25°. In its final minutes, the antumbral shadow cuts across central Borneo and clips the northwestern edge of Celebes before ending just short of Mindanao, Philippines at 09:52 UT. During a 3 hour 46 minute trajectory across our planet, the Moon's antumbra travels approximately 14,500 kilometres and covers 0.9% of Earth's surface area. Path coordinates and central line circumstances are presented in Table 1.
Partial phases of the eclipse are visible primarily from southern Africa, Australia, Southeast Asia and Indonesia. Local circumstances for a number of cities are listed in Table 2. All times are given in Universal Time. The Sun's altitude and azimuth, the eclipse magnitude and obscuration[3] are all given at the instant of maximum eclipse.
This is the 50th eclipse of Saros 131. The family began with an unusually long series of 22 partial eclipses starting on 1125 Aug 01. The first central eclipse was total in the Northern Hemisphere on 1522 Mar 27. It was followed by 5 more total eclipses before the series produce 5 hybrid eclipses from 1630 to 1702. The first annular eclipse of Saros 131 occurred on 1720 Aug 04. The series will produce 29 more annular eclipses the last of which is 2243 Jun 18. Saros 131 terminates on 2369 Sep 02 after a string of 7 partial eclipses.