Monday, August 21, 2017

Eclipse day!!!

In case you are trying to figure out how much of the sun will be 'hidden' in your location, here is a handy web link that gives specific details.

Remember to be safe in your viewing!

 

Eclipse phenomena - from www.greatamericaneclipse.com

From begin to end, the eclipse lasts nearly three hours (including the partial stages) if you are within the narrow path of totality. 
 
There are two general rules for safely viewing solar eclipses:
  1. When any part of the Sun is visible, do not look at the Sun without approved solar filters that are used properly. Do not assume that sunglasses, exposed film, CDs, or any other ad hoc filter is safe. Only use approved solar filters such as eclipse glasses from a reputable source. Failure to heed this rule may result in permanent eye damage.
  2. During the two minutes of the total solar eclipse, it is indeed safe to look directly at the Sun's corona with your eyes and through binoculars. But when totality ends and it suddenly brightens, instantly turn your eyes away and put your eclipse glasses or filters back on immediately.
More on safely viewing eclipses: http://www.mreclipse.com/Totality2/TotalityCh11.html and http://www.nao.ac.jp/E/file/solar_eclipse_viewing_guide-v1.pdf

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