Supermoon

A supermoon is the common term for a full perigee moon. The moon is full once a month and also the moon is in perigee once a month, from time to time, both things happens together and there is a slightly larger and brighter moon. It is hard, if not impossible, to see any difference in the size with the naked eye since there is nothing to compare the size with. Here are two photo of the Supermoon about 12 hours before and after. The first one is just the photo of the moon. Really nothing special about it, quite the opposite, the full moon lacks any contrast and seems flat.

Super moon May 5th 2012

 The second photo is also a super-moon but shows the known phenomena of the orange moon and large moon illusion. This happens every month, and I suspect that super-moons are less orange since they are a bit brighter. The moon looks smaller since the focal length of the two photos is different
 

Orange super-moon

Since there is really nothing special about super moons, the best practice will be to observe the full or near full moon at moonrise and moon set and enjoy the orange color and the large moon illusion. However keeping the photos and photographing at mini-moon (moon at apogee, the farthest away from earth) will show notable difference in size.
The next full moon at apogee will be in November 2012. Stay tuned.