Monday, July 20, 2009

Are You Ready for Tomorrow’s Solar Eclipse?


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Occurring at the sunrise on July 22 morning in the region, this rare celestial activity will, however, be partially viewed in the state while the eastward journey of moving shadow of the moon on earth presenting a clear view of the solar eclipse. It will start from Surat in Gujarat and towards parts of Maharashtra and Madhya Pradesh, then covering Gaya in Bihar with clearest view and culminate in Dibrugarh in Assam, till 10.30 am.

The journey of the partial view of the solar eclipse in the region can be seen from 5.30 am to 7.30 am. The longest period of total solar eclipse at Surat will be of about 3 minutes and a few seconds.

How to View Solar Eclipse?

Never view the sun with the naked eye or with any optical device, such as binoculars or a telescope!

There are safe ways to view the sun. The simplest requires only a long box (at least 6 feet long), a piece of aluminum foil, a pin, and a sheet of white paper.

The length of the box is important. The longer the box, the bigger the pinhole image. To find the size of the image, multiply the length of the box by the number 0.00873. For a box that is 1 meter long, the image will be 0.00873 meters (or 8.77 mm) in diameter. If your box is 5 feet (60 inches) long, your solar image will be 60 x 0.00873 = 0.52 inches in diameter. If you want to round things off, the size of the image is about 1/100th the length of the box.

If you can't find a long box or tube, you can tape together two or more boxes to make a longer one. In the illustrations below, we found that taping together two triangular UPS shipping tubes works well. Of course, if you do this, you must cut out the cardboard at the ends of the tube in the middle!

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