Total Solar Eclipse Do’s & Don’t during Eclipse
Posted by Deepak Shetty on July 21, 2009
A Total Solar Eclipse will be visible in India on July 22, 2009 from early morning 05:28 hrs to 07:40 hrs (Indian Standard Time). The total solar eclipse will last nearly four minutes — from 6.26 am to 6.30 am — in India and the sun will not be visible at all. In India, Total Solar Eclipse will be visible in Gujarat, Madhya Pradesh, Bihar, Varanasi, West Bengal and Northeastern States. According to NASA, the solar eclipse on July 22, 2009 is a ‘Total Solar Eclipse’ and the Moon’s umbral shadow on Sun begins in India and crosses through Nepal, Bangladesh, Bhutan, Myanmar, China and ends in the Pacific Ocean.
It is the longest total solar eclipse in the 21st century and will not surpass in duration until next 123 years.
The total solar eclipse in India will be visible in regions around Bhopal (Madhya Pradesh), Surat (Gujarat), Darjeeling (West Bengal), Varanasi (Uttar Pradesh) and Patna (Bihar).
This is second in the series of three eclipses in a month. There was a lunar eclipse on July 7 and now a solar eclipse on July 22 and then a lunar eclipse on August 6.
Don’ts During Solar Eclipse
• Never watch the eclipse with a naked eye.
• Don’t use Binoculars to view the eclipse.
• Don’t use Telescope to view the eclipse.
• Don’t use any cheap or easily available filters in Telescope or Binoculars to view the sun. Only specifically designed filters should be used with Telescope and Binoculars.
• Don’t watch the eclipse using color film.
• Don’t watch the eclipse with non-silver black and white film.
• Don’t watch the eclipse with medical x-ray films with images on them.
• Don’t use smoked glass to view the sun.
• All developed films lack a silver emulsion and therefore it should not be used to view the eclipse.
Do’s During Solar Eclipse
• You should take the advice of an experienced person or a scientist before planning to view a Total Solar Eclipse
• Only use specifically designed spectacles designed with filters to view the eclipse.
• The safest method of viewing a Total Solar Eclipse is by projection, in which a small opening is used to cast the image of the Sun on a screen beyond the opening.
• It is safe to view the total phase of an eclipse (when the moon completely coves the sun) with naked eye. But one needs to know when to stop and start viewing the total phase. So this is bit risky.