
Of all the dramatic displays that nature treats us to, a total eclipse of the sun is the most awe-inspiring. It begins with a gradual darkening of the sky that progresses to an eerie gray. It’s strangely quiet, prompting people to speak just above a whisper as they watch a flat, black disk slide slowly across the sun. The moment when the last crescent of sunlight vanishes is unnerving, recalling ancient fears that an eclipse was signaling the end of the world. Then suddenly the sun’s corona bursts forth—a shimmering halo of light that seems to surround a black hole in the sky. This is the magic moment; this is why eclipse chasers are willing to travel to the ends of the earth. Then the moon moves on, uncovering a sliver of sunlight, and everyone cheers the sun’s return.
This is the official statement from NASA:
On Wednesday, 2009 July 22, a total eclipse of the Sun is visible from within a narrow corridor that traverses half of Earth. The path of the Moon’s umbral shadow begins in India and crosses through Nepal, Bangladesh, Bhutan, Myanmar and China. After leaving mainland Asia, the path crosses Japan’s Ryukyu Islands and curves southeast through the Pacific Ocean where the maximum duration of totality reaches 6 min 39 s. A partial eclipse is seen within the much broader path of the Moon’s penumbral shadow, which includes most of eastern Asia, Indonesia, and the Pacific Ocean.
On Wednesday, 2009 July 22, a total eclipse of the Sun is visible from within a narrow corridor that traverses half of Earth. The path of the Moon’s umbral shadow begins in India and crosses through Nepal, Bangladesh, Bhutan, Myanmar and China. After leaving mainland Asia, the path crosses Japan’s Ryukyu Islands and curves southeast through the Pacific Ocean where the maximum duration of totality reaches 6 min 39 s. A partial eclipse is seen within the much broader path of the Moon’s penumbral shadow, which includes most of eastern Asia, Indonesia, and the Pacific Ocean.
The path of totality
At sunrise on July 22, 2009, (the evening of July 21 PDT), the moon’s umbra—the cone-shaped part of the moon’s shadow—will fall on India’s Gulf of Khambhat. The shadow will sweep across Asia and the South Pacific before leaving the earth near the Marshall Islands about 3½ hours later. The path of totality will cover a distance of approximately 9,500 miles (15,200 km). The maximum duration of totality is an exceptionally long 6 minutes and 39 seconds, which will come while the shadow is over the Pacific.
At sunrise on July 22, 2009, (the evening of July 21 PDT), the moon’s umbra—the cone-shaped part of the moon’s shadow—will fall on India’s Gulf of Khambhat. The shadow will sweep across Asia and the South Pacific before leaving the earth near the Marshall Islands about 3½ hours later. The path of totality will cover a distance of approximately 9,500 miles (15,200 km). The maximum duration of totality is an exceptionally long 6 minutes and 39 seconds, which will come while the shadow is over the Pacific.
Thanks to http://www.exploratorium.edu/