Full moons at perigeeand apogee
Taken by Shiraishi on January 16, 2014 @ Kumagaya-shi, Saitama, Japan
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  Camera Used: NIKON COOLPIX P510
Exposure Time: 10/3200
Aperture: f/5.9
ISO: 200
Date Taken: 2013:07:22 22:02:38
  
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Details:
Comparison of the full moon of today at perigee and the full moon half a year ago at apogee. Nikon COOLPIX P510 digital camera; ISO 200, F5.9, 1/320s exposure, f=2000mm for Jul. 22, 2013 21:40:26 UTC+9 ISO 200, F5.9, 1/640s exposure, f=2000mm for Jan. 16, 2014 19:02:08 UTC+9
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The difference in size is obvious at this magnification. (On my screen it is approx 30X.) For a true comparison, stand away from your computer so that the average size of the two moons subtends an arc of 1/2 degree. For me the average size is 80 mm, which means I must view them from 9 meters (30 feet!) away. Yes, I can still see the difference, but two circles of the two sizes viewed separately would be a guess as to which is largest, especially if done a few days apart, never mind months. Thus, per Spaceweather today, When the Moon is high in the sky with no reference points nearby, a big Moon and a small Moon look much the same. However, I think the word high should be omitted.
Posted by rocksnstars 2014-01-16 09:51:48
 
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